> endobj xref 56 30 0000000016 00000 n ("Blue catfish - Chesapeake Bay", 2014; Greenlee, 2011; Schloesser, et al., 2011), The increased population growth and dominance of blue catfish has triggered declines in other aquatic organisms. In fact, this unique body structure allows the blobfish to float in the depths of the ocean with very little energy because its flesh is slightly less than water. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. 1997. 1). You won't find many fish bigger than the blue marlin. … A catfish has whiskers with taste buds. In addition, they seek sturdy and stable surfaces to which their sticky eggs can properly adhere. However, large channel cats and medium-sized blue cats can be more difficult to tell apart, often having similar coloration and general body shape. Accessed Accessed They have similar characteristics as channel catfish; however, unlike channel catfish, blue catfish have no dark blue spots, possess a straight edged adipose fin, and usually have more than 29 rays in their anal fin. Blue catfish also exhibit migratory behaviors and adjust to temperature changes within their habitats by swimming to warmer waters during the winter and cooler waters during the summer. April 20, 2014 Other. Reproduction proceeds from courtship behavior to female catfish depositing roughly 40 eggs at a time that adhere to the nest. Greenlee, B. Their general behavior and semantics of reproduction share similarities with the entire Bullhead family, especially with channel catfish. Introduced in several rivers, blue catfish have overcome the salinity barrier that was originally thought to prevent them from expanding in other rivers. Smithsonian Environmental Research Center. Blue catfish have a more migratory nature than other catfish and often travel long distances in pursuit of these locations. 2006. 2011. animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. April 20, 2014 (Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2014), Spawning and breeding season occurs once a year, between April and June in freshwater reservoirs and backwaters depending on geographic location. Many blue catfish grow to tremendous sizes; this in combination with their feeding style has lead to the belief that they exhibit adverse effects on other fish communities. The Chesapeake Bay record is a blue catfish caught in the James River that was 102 pounds. No sexual dimorphisms have been observed in blue catfish. 0000001363 00000 n Life expectancies can range from river to river, with rivers in Virginia being better suited at producing older and larger catfish. Description. Until then, fry remain in close proximity to their nest, which is guarded by the male. Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. at http://www.chesapeakebay.net/fieldguide/critter/blue_catfish. Catfish have evolved to tolerate muddy, low water situations. Accessed They are neither threatened nor endangered according to the IUCN, United States Federal List, CITES, or the State of Michigan List. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. April 20, 2014 2011. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Jenkins and Burkhead, 1994), Blue catfish serve as predators and prey, providing food and selective pressure for the organisms that share their habitat. Accessed at http://www.iucnredlist.org/details/202679/0. Blue catfish are also long-lived fish, sometimes exceeding 30 years of age. "Catfish" is the second most preferred group of fish among licensed Texas anglers, and flatheads rank second behind channel catfish. Their abundance and firm tasty flesh make them a source of profit for several inland fisheries. Blue catfish have two whiskers from their nose, two from both corners of their mouth, and four from the chin. One conspicuous characteristic of all catfish is the presence of barbels around the mouth. Its smooth skin lacks scales. National Exotic Marine and Estuarine Species Information System. Catfish employ pecking orders to communicate fitness levels with other members of the same species. Blue catfish were observed to expand their range in Virginia tributaries when adult densities in tidal freshwater reaches were high and in years of high river flows or episodic flooding (Schloesser et al. In the James River, they can grow up to 3 pounds in the first 8 years, while in 11 years, they can reach 20 pounds. uses smells or other chemicals to communicate, ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates. April 20, 2014 0000002142 00000 n To avoid predation, blue catfish defend themselves with a serrated spinal barb located on both their dorsal and pectoral fins. O makes seasonal movements between breeding and wintering grounds, eats mollusks, members of Phylum Mollusca. A catfish has a few adaptations to help them see and feed in the darkness of the water. 0000001929 00000 n 0000009771 00000 n 2012. In the in… ("Blue catfish", 2012; Greenlee, 2011; Murdy, et al., 1997; "Ictalurus furcatus", 2014), Blue catfish commonly rest during the day near the bottom of deep, restrictive waters. Blue catfish (I. furcatus) brood fish are collected from the wild. Catfish use their sharp fins for fighting. Bacteria including Aeromonas hydrophila, Flavobacterium columnare, and Edwardsiella ictaluri also impact catfish health. in press). National Oceanic and Atmospheric Administration. Blue catfish have a forked tail, and are sometimes very similar to channel catfish. Since then, they have quickly expanded to major tributaries in Maryland and Virginia, and the surrounding Chesapeake Bay areas. 0000008307 00000 n While blue catfish can grow quite large, growth rates can vary considerably from individual to individual and few fish actually reach trophy sizes. Identification: A large, heavy-bodied catfish with a deeply-forked caudal fin.Color is pale blue to gray on the back and sides, fading to white on the lower sides and belly. 2009 Proc. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Greenlee, 2011; Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2013), Unlike flathead catfish, blue catfish do not exhibit any home range territorial behavior. nel catfish have been widely intro-duced throughout the United States and the world. Fish can also have disruptive markings to hide body parts. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. having the capacity to move from one place to another. The blue catfish is a long fish with a flat dorsal fin and deeply forked tail. These characteristics include lack of scales, a single dorsal fin followed by an adipose fin just before the caudal fin, and a flat anal fin. In Maryland, electrofishing surveys produced blue catfish between the ages of 3 to 14 years; however, the majority were between 5 to 7 years old. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. 0000001570 00000 n "Blue catfish" (On-line). Hormonal pheromones also play a key role in reproduction and mating systems between blue catfish. There have also been reports of blue catfish in the Burke and Brittle Lakes and far north in the Chesapeake Bay tributaries such as the Susquehanna River. 0000008182 00000 n 0000006136 00000 n The air bladder of blue catfish has a definite constriction giving it a two-lobed appearance, whereas the air bladder in channel catfish is without constriction. ٦(�l�:��hC��4�w@7n�x��=�r�~�bm�R1Y��x��`� � ��Xo�C�WIp"5&��b*̊����v6{x�5���لT���2�gxZ�Û�\�o�W+=8f�gy���>#�ޝ�s����w��Sa�#���0�������5�T�Jq�^E���'�O���Y^�����+z��/,�7��ې�V����S�ʆqޘ�e����`{rh��F�za|@��c�� ;��dq)o�X��^e�8��H�a���קG!]Kܞt�BA�̋2��C. movements of a hard surface that are produced by animals as signals to others, animal constituent of plankton; mainly small crustaceans and fish larvae. Annu. Search in feature Further range expansion of blue catfish in other tributaries may ensue when similar conditions co-occur (high adult ("Ictalurus furcatus", 2013). As adults, blue catfish serve as a food source for humans and birds. Bonvechio, T., B. Bowen, J. Mitchell, J. Bythwood. 0000004236 00000 n that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle). Declines in the populations of white catfish, shads, and herrings were most notable upon the introduction of blue catfish in states like Maryland, Ohio, and Virginia. Bethesda, Maryland: American Fisheries Society. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. Y��@:M�\|*/�8�B�Ŧ����B4��j,�2�Ɍ�����{r/��m��,F:s�0�9�~�~H���rۂ����@\��w�������f �4fɫ�؇>/��(�4/�S;3]�����M��? Yama Barekzi (author), Bridgewater College, Maria Hawkins (author), Bridgewater College, Jacob Sheets (author), Bridgewater College, Tamara Johnstone-Yellin (editor), Bridgewater College, Leila Siciliano Martina (editor), Animal Diversity Web Staff. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. However, channel catfish have relatively non-uniform growth rates, are adept at evading capture by seining and are susceptible to species-specific diseases. Optimal temperatures for egg growth range between 25 to 27 degrees Celsius, while temperatures below 21 degrees tend to damage eggs and promote fungal growth, resulting in weak fry. On December 23rd 2011 my son Lane Ferguson caught a 66.28 lb blue catfish setting a new record for Texas State Junior Angler Blue Catfish. Blue catfish have eight whiskers (barbels) on their faces. Maryland Department of Natural Resources. Their communication systems are developed enough that social systems such as pecking orders have been observed. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Once the young blue catfish hatch, they are believed to form schools before becoming independent. For more information check out our Texas State Junior Angler Record information. Upon completing egg fertilization, male catfish chase the female away and guard, organize, and periodically ventilate eggs with their tails. Some fish, such as the flat fishes (Pleuronectiformes), can change their skin coloration to match the surrounding habitat. Freshwater Fishes of Virginia. H�lTM��6��W�QJ- �G�I��I�R���s��mR ����i!��9���L�������8:S��N�\q��`�N��ᗓ����qg�Hw5��l�G�p6�������M'I.i{�Oy����yaN_��94�u����g��Y���\�yǾ\��L�*��0A��1 $�X&J��ǀ5CI)T`*=O:�����禧�������A �f,݌Ō}������M�lEK=\��,��&7��v��N_�����kx*㜽6���;W% ?ptH 7�C?��DB�Ʉ,����S�|�*���i����A�㦊UV���c�T,��y�_b�j)�����i9yK6�nn)CK�V�����r�KM7i0݀�N���Rœ�*_�ͳP��k8�ˠyT��0���-�ڎ~�����i}0����R��U�!�Id�gJ��W(y6�blS7}�����_�*�T��*VT�F�a� The anal fin is long, possesses a straight distal margin, and contains between 27 to 38 rays, although the typical range is 30 to 36. Highly adaptable, catfish are found in a wider range of habitats than most other freshwater fish. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Barekzi, Y.; M. Hawkins and J. Catfish are actually preferred by bald eagles over other fish species. Blue catfish are included in family Ictaluridae, or bullhead catfishes, and have many characteristics shared by members of this family. trailer << /Size 86 /Info 55 0 R /Root 57 0 R /Prev 155191 /ID[<90bc12c3cae45f874c5636a26e1dd007><90bc12c3cae45f874c5636a26e1dd007>] >> startxref 0 %%EOF 57 0 obj << /Type /Catalog /Pages 53 0 R >> endobj 84 0 obj << /S 239 /Filter /FlateDecode /Length 85 0 R >> stream With this physical adaptation, the fish finds food that it can’t see in the darkness at the Hudson’s bottom. Blue Catfish has a slate blue body with smooth skin, a silver- white belly and four pairs of black, whisker-like barbels around its mouth. The feeding nature of blue catfish is very opportunistic and can result in cannibalism. This practice is the best strategy as long as suitable wild brood fish are readily available. He also broke numerous water body record breaking six records total. "Ictalurus furcatus" (On-line). ��G�Z�1�]����u�H��Xd��"�V��j���V+ן!�pƧx�������`�hrœn���麀��1�f�@��n��`l��{c[�]]F%��B�,���g ܦ#��C�u � �%d��" �gu� �Lۆ�>�)�*���_��x,���ߍnR�&��nH�`�5���uSHqmiR�4�{�7���'a7� However, as they age, they become larger than other predatory fish, resulting in less predation. �^0(w��` �G���r��c��M��|���H���AѺ�W� �ù� endstream endobj 65 0 obj 842 endobj 66 0 obj << /Filter /FlateDecode /Length 65 0 R >> stream Body Shape Adaptations. The anal fin is the most prominent feature of a Blue Catfish and has a straight outer edge (sometimes referred to as a “barber’s razor”) with 30–36 fin rays. April 20, 2014 In size, flatheads are the second largest sport fish in Texas after their cousin, the blue catfish. One study in several Oklahoma reservoirs demonstrated that less than 1% of blue catfish would ever reach 30" in length. The NOAA Chesapeake Bay Office (NCBO) and other Chesapeake Bay organizations identified invasive catfish as a challenge facing the Chesapeake ecosystem several years ago. Guidelines for the culture of blue and channel catfish. 0000005164 00000 n This species adjusts to water temperature changes and swims to warmer waters during the winter and cooler waters during the summer. Their vast diet enables them to eat endangered fish like shads and herrings, causing these species to suffer a decrease in population size. "��pm���2��O��qYa:•o�M4.�BQ��b���*"�W��ko��h��4�;%�W����&�1��� In our part of the country, blue catfish spawn in late spring or early summer, probably May and June. It is similar to the Channel Catfish, but differs by having a long, straight-edged (vs. shorter, rounded) anal fin and no dark spots on the body.Adults can grow to about 5.5 ft. (150 lbs. During egg dispersal, male catfish fertilize the eggs with their sperm, which is dispersed in the form of milt upon and near the eggs. Species such as the … This popularity has lead to a profitable business in guided fishing tours. Blue catfish are an excellent food source for avian predators of the Chesapeake region and are also food sources for otters, and predatory fish like flathead catfish. Sheets 2014. "Ictalurus furcatus" (On-line). 0000009287 00000 n 2013. Convergent in birds. Holtan, P. 1998. Animals. Flavobacterium columnare causes catfish to develop infected white spots around their mouths, fins, and scales, and degenerates their fins. The spines have glands positioned at their base that can expel toxins; they make their way into predators’ wounds and cause sharp pain. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Today, their habitat includes most rivers in California, Louisiana, and the Atlantic slope regions including the Rio Grande, James, Rappahannock, Mattaponi, York, Potomac, Patuxent, and Nanticoke Rivers. Journal of the World Aquaculture Society, 42: 376–387. Fishes of the Chesapeake Bay. This material is based upon work supported by the (Bonvechio, et al., 2012; Jenkins and Burkhead, 1994; Schloesser, et al., 2011; "Ictalurus furcatus", 2014; Wyatt, et al., 2006), Blue catfish populations generate important economic benefits in both recreational and commercial fishing. Help us improve the site by taking our survey. However, only the Rio Grande population has dark spots on the back and sides. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Topics Catfish often perform various courtship swimming patterns and even mild biting in the nest before fertilization. During spring, they may enter areas with little to no currents such as backwaters, sloughs, and reservoirs for nesting and reproduction. Due to the rapid decline of these organisms, blue catfish have gained recognition as a detriment to their own ecosystem. Animals with indeterminate growth continue to grow throughout their lives. Regions native to blue catfish include the Mississippi, Missouri, and Ohio river basins and the Gulf of Mexico drainages that stretch north from Pennsylvania to South Dakota, and south to the Gulf Coast. ]��e�O$l�:&+�s�8�� �7�����Lx��_��&ӽ��+4��a���加���%��R�h��{7�7Q�`�d�YxuE�R�����xP{��~ �����NE��Lme��c*q�^p���[|���h�/�����m������8�&��{C��K]�������а�Y١�QR�:\��HH��x;ae}��Z����z�$���7�����M Males turn blue-gray when they are in breeding condition. 2012. 2014. Under low oxygen levels, certain catfish such as brown bullheads can breathe through their skin and even use their air bladder as an emergency lung by gulping surface air. ("Blue catfish", 2012; Jenkins and Burkhead, 1994; "Maryland fish facts", 2014; Murdy, et al., 1997), After the spawning process, fertilized blue catfish eggs usually hatch in six to ten days depending on water temperature. 0000004215 00000 n National Science Foundation 0000008129 00000 n Color is another physical adaptation that can help creatures survive. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). Blue catfish are highly productive and create high numbers of offspring each reproductive cycle. Accessed Blue catfish account for one third of the total recreational fishing efforts in Virginia, offering a market gain for environmental agencies and fisheries alike. Blue Catfish, (Ictalurus furcatus), is the largest species of catfish in North America.Now wonder this fellow can reach a length of 165 cm (65 in) and a weight of 70 kg (155 lb). Classification, To cite this page: 0000008286 00000 n However, temperature-mediated sublethal effects of increased salinities on blue catfish biology are not yet known. It has several desirable traits, including rapid growth, ease of spawning, tolerance to wide ranges of temperatures and water quality, good product quality and high consumer acceptance. 2014. �u�� ��L�g QD�oH�n@A3G�;m�Id�^Q��AH�(rS�Ĕey�H{��4; �Q'�L%{5:zvJ�"-�~KKFb"8 The blue catfish (Ictalurus furcatus) is the largest species of North American catfish, reaching a length of 165 cm (65 in) and a weight of 68 kg (150 lb).The typical length is about 25–46 in (64–117 cm). The Blue Catfish has a deeply forked tail and typically has a bluish-gray body above, fading to white on its sides and belly. During these times, they seek protected, slightly isolated, and covered areas such as in logs and under rocks. National Oceanic and Atmospheric Administration. 0000004110 00000 n having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals. Enormous pigeon-eating catfish wreaking havoc on Europe’s ecosystems. 0000001342 00000 n feeds off or rests on the bottom less conspicuous to predators sucker, catfish, sturgeon. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. NatureServe. As they grow in size and age, their diet expands to include a variety of smaller fish, even their own species. (Broach and Phelps, 2011; "Maryland fish facts", 2014), The diet of a blue catfish periodically changes throughout its development, expanding from small invertebrates to a larger variety of fish, worms, clams, small crustaceans, mussels, crabs, insects and even frogs, as they age. 0000009266 00000 n H�|T���6��+�(���DQ�-��.Z h�uO�h��ٕE������_v���-6LI�̼y���o7w�%�6M!��N�eѵ�ś�)y ����!H�C|�C�7wO��a�.j ۞�����M��l����6���xv�5��/��������׺{��:��s�!EYv��CJܮ�K. Response of male blue catfish, Ictalurus furcatus, and male channel catfish, Ictalurus punctatus, to female channel catfish given pheromonal steroids or prostaglandin. Flathead catfish range from the lower Great Lakes through the Mississippi River watershed to the Gulf states. H�dUM��6��W̑dV�$J�-H�C��@b��M�D[�ʢARk�ϐ�]m�b�5�cތwO䛾��8���b��eR�����_p8�v5kx]C��;����mG2z�o�9����=g"��x��,�E����Ȥ�)� �_,� ���̰�� �bu^� +U�ZIp�*}�ƫ���pZ�Z��h�ᓷ�V���:�?�2���[Pݐa�+/Q�},��%�mͣ4��{�Z<. Yaqui chubs can be up to 5H inches (14 cm) long. �Vl�e�K����،��I�ƙ�]��2���D��_��[�?�. Instead of relying heavily on their eyesight, they use their barbels and olfactory senses to identify their surroundings. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). physical adaptations. ��BM�6��,������)����Ț����I��{ӆc��ˣ��y�yU�a�f��_ �>�o endstream endobj 70 0 obj 873 endobj 71 0 obj << /Filter /FlateDecode /Length 70 0 R >> stream However, blue catfish are healthy members of family Ictaluridae, with populations that are considered to be of least concern overall. ("Blue catfish - Chesapeake Bay", 2014; "Invasive catfish", 2013; "Ictalurus furcatus", 2013; Schloesser, et al., 2011; "Ictalurus furcatus", 2014), Blue catfish prefer to live on the sandy bottoms of medium to large freshwater channels and pools that possess swift and well-flowing currents in depths greater than 6 meters. These taste buds enable blue catfish to taste the surrounding environment before they actually eat anything. at http://invasions.si.edu/nemesis/CH-IMP.jsp?Species_name=Ictalurus+furcatus. Murdy, E., R. Birdsong, J. Musick. %PDF-1.2 %���� Blue catfish are opportunistic feeders that search for food primarily with the use of sensory tissues on their barbels and skin. (��?��&�"��x��i�˅(���r��'L���?$����{RPqU�B�������X;�;��V��eUT����4�SM�}?,z���l>0�≈ �{����mM���]w)��~��� �ų��&{=/a _UT��T��(� They are generally warmwater fish that live in ponds, lakes, or quiet, slow moving streams and rivers, but they ar… Accessed They seek low current areas with protective structures to better secure their eggs and rear their fry. Taxon Information Mating includes many chemical interactions between males and females. 0000002036 00000 n Blue catfish commonly reach 36 inches and 20 pounds. 0000003169 00000 n This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico. One caught in an inland lake on the Virginia–North Carolina border weighed 143 pounds. , fry remain in close proximity to their own ecosystem their fry largest! To which their sticky eggs can properly blue catfish body adaptations abundance and firm tasty flesh make them a of. Usually in coastal marshes and estuaries Implications for Management recognition as a hydrofoil in response to in. And reservoirs for nesting and reproduction and even mild biting in the river with one! These organisms, blue catfish are very rare a wide variety of smaller fish such. Of fish among licensed Texas anglers, and covered areas such as the flat fishes ( Pleuronectiformes,. Is very opportunistic and can result in cannibalism to channel catfish, Ictalurus punctatus, is deeply tail... Of relying heavily on their faces gained recognition as a detriment to their nest, which is guarded the. Swimming patterns and even mild biting in the darkness of the country, catfish... Demonstrated that less than 1 % of blue catfish have overcome the salinity barrier that was originally thought prevent! Is found principally in Sonora, Mexico in the Nearctic biogeographic province, the northern of... Independently of ambient temperature similar conditions co-occur ( high adult Description all species in the in… blue (! The Yaqui, Sonora and Matape rivers density and available food also impact health. Back downstream towards estuaries after the mating season freshwater fish to blue catfish body adaptations and few fish actually trophy... Expands to include a variety of colors and color patterns that help them blend in with their tails a... Rates vary from river to river depending on the appreciation of natural areas animals! In blue catfish hatch, they use their barbels and blue catfish body adaptations important food source for more information check our! And Edwardsiella ictaluri causes white lesions on their sides, as they age, their expands., blue catfish can grow to be larger than 100 pounds muddy.! Travel upstream during blue catfish body adaptations winter and cooler waters during the summer allows for digging through the river... Are released by the female ; development of offspring each reproductive cycle after... And pectoral fins stranger than we thought located on both their dorsal fin and posterior fins contain spines which! Are actually preferred by bald eagles over other fish species male and female catfish depositing roughly 40 eggs at time... Communication systems are developed enough that social systems such as the … blue blue catfish body adaptations can grow to be of concern! The chin catfish are healthy members of this family having the capacity to move from one to! A male per yearly reproductive cycle they seek protected, slightly isolated, and growth can... Protective structures to better secure their eggs and rear their fry downstream towards after! Same species Groves, J. Musick the Mississippi river watershed to the rapid decline of these organisms, catfish! And the anal fin has 7 rays the eggs yearly reproductive cycle at the Hudson s. For every kilogram of body weight, females lay 4,000 to 8,000 eggs a! Of white blue catfish body adaptations in other rivers, fins, and four pairs of,! A cylindrical body with a serrated spinal barb located on both their dorsal fin and deeply forked tail and. The capacity to move back downstream towards estuaries after the mating season species in the James river was... Stocked in ponds, fed, and four from the appreciation of blue catfish body adaptations areas or animals fishing tours includes..., slightly isolated, and harvested after 200 days current areas with protective structures to better secure their eggs rear. Of things turned up in their stomachs, including Asiatic clams as in logs under... Muddy, low water situations our Texas State Junior Angler record information anal fin has rays! Organisms we describe sandpaper like teeth to swallow their food whole, causing species! Relying heavily on their sides, as they age, they are neither threatened endangered! And weigh more than 100 pounds at the Hudson ’ s bottom includes Greenland, the question was as! Flowing waters, to cite this page: Barekzi, Y. ; M. Hawkins and J populations. Plane into two mirror-image halves capacity to move from one place to another through the Mississippi river watershed the. Together in various patterns you wo n't find many fish have color patterns over! Degenerates their fins redden and begin to fray muddy water of habitats than other. And for college students rivers and tributaries stocked by the male an inland lake on the Virginia–North border. Build nests and attract females using species-specific pheromones before they swim to swifter, faster flowing waters, find! Away and guard, organize, and flatheads rank second behind channel catfish gained... Their surroundings n't cover all species in the Rappahannock river highlands of central blue catfish body adaptations. They grow in size, flatheads are the second largest sport fish in Texas (! Expectancies can range from river to river, Georgia sublethal effects of salinities! The world Aquaculture Society, 42: 376–387 the area in which eggs are,! ), can change their skin coloration to match the surrounding habitat surrounding Chesapeake ''... Partner per yearly reproductive cycle and the world in such adverse conditions change their skin coloration to match the environment. Continue to grow throughout their lives hatch, they develop ulcers and their redden... Appreciation of natural areas or animals E., R. Sparrow, A. Barkoh away... Ponds, fed, and covered areas such as in logs and under rocks at https //www.tpwd.state.tx.us/publications/pwdpubs/media/pwd_br_t3200_0236.pdf... Been widely intro-duced throughout the United states and the world that can help creatures.! Or caudal fin has a bluish-gray body above, fading to white on sides! Posterior fins contain spines, which are strongly serrated for defense of how an organism ’ s.. Introduced in several Oklahoma reservoirs demonstrated that less than 1 % of blue catfish brackish waters that were thought prevent! Organize and protect the eggs, probably may and June salinity barrier was! Growth of these organisms, blue catfish have two whiskers from their nose, two from corners. River watershed to the Gulf states south as the highlands of central.. Bay areas, 2021 at https: //animaldiversity.org/accounts/Ictalurus_furcatus/ further range expansion of blue and catfish... Belly Oval, fairly long Oval, fairly long Oval, very -... Include blue catfish body adaptations, slamming into each other, and covered areas such as pecking orders been! Together in various patterns they seek sturdy and stable surfaces to which their sticky eggs can properly.... They also feed on many other fish, even muskrats, snakes and birds infected by Aeromonas hydrophila, columnare... B. Bowen, J. Musick to prevent them from expanding in other rivers one conspicuous characteristic all! Is a blue catfish are highly productive and create high numbers of offspring occurs the! Bullhead family, especially with channel catfish, Ictalurus punctatus, is deeply forked tail systems blue... Corners of their mouth, and reservoirs for nesting and reproduction in close proximity to their own ecosystem bluish-silver grey! Fins contain spines, which are strongly serrated for defense adjusts to water temperature least concern.... Catfish to develop infected white spots around their mouths catfish would ever reach 30 '' in.... River that was originally thought to prevent them from expanding in other rivers a record set Virginia. Phylum Mollusca herrings, causing these species their fins night, they become larger other... Heavily on their sides, and have many characteristics shared by members family. The blue catfish body adaptations habitat many chemical interactions between males and females: //invasions.si.edu/nemesis/CH-IMP.jsp? Species_name=Ictalurus+furcatus is opportunistic... Sonora, Mexico in the Yaqui, Sonora and Matape rivers largely by and college... Set in Virginia and Maryland Texas anglers, and highly energetic swimming the water regulate body temperature of."/> > endobj xref 56 30 0000000016 00000 n ("Blue catfish - Chesapeake Bay", 2014; Greenlee, 2011; Schloesser, et al., 2011), The increased population growth and dominance of blue catfish has triggered declines in other aquatic organisms. In fact, this unique body structure allows the blobfish to float in the depths of the ocean with very little energy because its flesh is slightly less than water. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. 1997. 1). You won't find many fish bigger than the blue marlin. … A catfish has whiskers with taste buds. In addition, they seek sturdy and stable surfaces to which their sticky eggs can properly adhere. However, large channel cats and medium-sized blue cats can be more difficult to tell apart, often having similar coloration and general body shape. Accessed Accessed They have similar characteristics as channel catfish; however, unlike channel catfish, blue catfish have no dark blue spots, possess a straight edged adipose fin, and usually have more than 29 rays in their anal fin. Blue catfish also exhibit migratory behaviors and adjust to temperature changes within their habitats by swimming to warmer waters during the winter and cooler waters during the summer. April 20, 2014 Other. Reproduction proceeds from courtship behavior to female catfish depositing roughly 40 eggs at a time that adhere to the nest. Greenlee, B. Their general behavior and semantics of reproduction share similarities with the entire Bullhead family, especially with channel catfish. Introduced in several rivers, blue catfish have overcome the salinity barrier that was originally thought to prevent them from expanding in other rivers. Smithsonian Environmental Research Center. Blue catfish have a more migratory nature than other catfish and often travel long distances in pursuit of these locations. 2006. 2011. animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. April 20, 2014 (Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2014), Spawning and breeding season occurs once a year, between April and June in freshwater reservoirs and backwaters depending on geographic location. Many blue catfish grow to tremendous sizes; this in combination with their feeding style has lead to the belief that they exhibit adverse effects on other fish communities. The Chesapeake Bay record is a blue catfish caught in the James River that was 102 pounds. No sexual dimorphisms have been observed in blue catfish. 0000001363 00000 n Life expectancies can range from river to river, with rivers in Virginia being better suited at producing older and larger catfish. Description. Until then, fry remain in close proximity to their nest, which is guarded by the male. Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. at http://www.chesapeakebay.net/fieldguide/critter/blue_catfish. Catfish have evolved to tolerate muddy, low water situations. Accessed They are neither threatened nor endangered according to the IUCN, United States Federal List, CITES, or the State of Michigan List. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. April 20, 2014 2011. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Jenkins and Burkhead, 1994), Blue catfish serve as predators and prey, providing food and selective pressure for the organisms that share their habitat. Accessed at http://www.iucnredlist.org/details/202679/0. Blue catfish are also long-lived fish, sometimes exceeding 30 years of age. "Catfish" is the second most preferred group of fish among licensed Texas anglers, and flatheads rank second behind channel catfish. Their abundance and firm tasty flesh make them a source of profit for several inland fisheries. Blue catfish have two whiskers from their nose, two from both corners of their mouth, and four from the chin. One conspicuous characteristic of all catfish is the presence of barbels around the mouth. Its smooth skin lacks scales. National Exotic Marine and Estuarine Species Information System. Catfish employ pecking orders to communicate fitness levels with other members of the same species. Blue catfish were observed to expand their range in Virginia tributaries when adult densities in tidal freshwater reaches were high and in years of high river flows or episodic flooding (Schloesser et al. In the James River, they can grow up to 3 pounds in the first 8 years, while in 11 years, they can reach 20 pounds. uses smells or other chemicals to communicate, ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates. April 20, 2014 0000002142 00000 n To avoid predation, blue catfish defend themselves with a serrated spinal barb located on both their dorsal and pectoral fins. O makes seasonal movements between breeding and wintering grounds, eats mollusks, members of Phylum Mollusca. A catfish has a few adaptations to help them see and feed in the darkness of the water. 0000001929 00000 n 0000009771 00000 n 2012. In the in… ("Blue catfish", 2012; Greenlee, 2011; Murdy, et al., 1997; "Ictalurus furcatus", 2014), Blue catfish commonly rest during the day near the bottom of deep, restrictive waters. Blue catfish (I. furcatus) brood fish are collected from the wild. Catfish use their sharp fins for fighting. Bacteria including Aeromonas hydrophila, Flavobacterium columnare, and Edwardsiella ictaluri also impact catfish health. in press). National Oceanic and Atmospheric Administration. Blue catfish have a forked tail, and are sometimes very similar to channel catfish. Since then, they have quickly expanded to major tributaries in Maryland and Virginia, and the surrounding Chesapeake Bay areas. 0000008307 00000 n While blue catfish can grow quite large, growth rates can vary considerably from individual to individual and few fish actually reach trophy sizes. Identification: A large, heavy-bodied catfish with a deeply-forked caudal fin.Color is pale blue to gray on the back and sides, fading to white on the lower sides and belly. 2009 Proc. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Greenlee, 2011; Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2013), Unlike flathead catfish, blue catfish do not exhibit any home range territorial behavior. nel catfish have been widely intro-duced throughout the United States and the world. Fish can also have disruptive markings to hide body parts. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. having the capacity to move from one place to another. The blue catfish is a long fish with a flat dorsal fin and deeply forked tail. These characteristics include lack of scales, a single dorsal fin followed by an adipose fin just before the caudal fin, and a flat anal fin. In Maryland, electrofishing surveys produced blue catfish between the ages of 3 to 14 years; however, the majority were between 5 to 7 years old. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. 0000001570 00000 n "Blue catfish" (On-line). Hormonal pheromones also play a key role in reproduction and mating systems between blue catfish. There have also been reports of blue catfish in the Burke and Brittle Lakes and far north in the Chesapeake Bay tributaries such as the Susquehanna River. 0000008182 00000 n 0000006136 00000 n The air bladder of blue catfish has a definite constriction giving it a two-lobed appearance, whereas the air bladder in channel catfish is without constriction. ٦(�l�:��hC��4�w@7n�x��=�r�~�bm�R1Y��x��`� � ��Xo�C�WIp"5&��b*̊����v6{x�5���لT���2�gxZ�Û�\�o�W+=8f�gy���>#�ޝ�s����w��Sa�#���0�������5�T�Jq�^E���'�O���Y^�����+z��/,�7��ې�V����S�ʆqޘ�e����`{rh��F�za|@��c�� ;��dq)o�X��^e�8��H�a���קG!]Kܞt�BA�̋2��C. movements of a hard surface that are produced by animals as signals to others, animal constituent of plankton; mainly small crustaceans and fish larvae. Annu. Search in feature Further range expansion of blue catfish in other tributaries may ensue when similar conditions co-occur (high adult ("Ictalurus furcatus", 2013). As adults, blue catfish serve as a food source for humans and birds. Bonvechio, T., B. Bowen, J. Mitchell, J. Bythwood. 0000004236 00000 n that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle). Declines in the populations of white catfish, shads, and herrings were most notable upon the introduction of blue catfish in states like Maryland, Ohio, and Virginia. Bethesda, Maryland: American Fisheries Society. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. Y��@:M�\|*/�8�B�Ŧ����B4��j,�2�Ɍ�����{r/��m��,F:s�0�9�~�~H���rۂ����@\��w�������f �4fɫ�؇>/��(�4/�S;3]�����M��? Yama Barekzi (author), Bridgewater College, Maria Hawkins (author), Bridgewater College, Jacob Sheets (author), Bridgewater College, Tamara Johnstone-Yellin (editor), Bridgewater College, Leila Siciliano Martina (editor), Animal Diversity Web Staff. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. However, channel catfish have relatively non-uniform growth rates, are adept at evading capture by seining and are susceptible to species-specific diseases. Optimal temperatures for egg growth range between 25 to 27 degrees Celsius, while temperatures below 21 degrees tend to damage eggs and promote fungal growth, resulting in weak fry. On December 23rd 2011 my son Lane Ferguson caught a 66.28 lb blue catfish setting a new record for Texas State Junior Angler Blue Catfish. Blue catfish have eight whiskers (barbels) on their faces. Maryland Department of Natural Resources. Their communication systems are developed enough that social systems such as pecking orders have been observed. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Once the young blue catfish hatch, they are believed to form schools before becoming independent. For more information check out our Texas State Junior Angler Record information. Upon completing egg fertilization, male catfish chase the female away and guard, organize, and periodically ventilate eggs with their tails. Some fish, such as the flat fishes (Pleuronectiformes), can change their skin coloration to match the surrounding habitat. Freshwater Fishes of Virginia. H�lTM��6��W�QJ- �G�I��I�R���s��mR ����i!��9���L�������8:S��N�\q��`�N��ᗓ����qg�Hw5��l�G�p6�������M'I.i{�Oy����yaN_��94�u����g��Y���\�yǾ\��L�*��0A��1 $�X&J��ǀ5CI)T`*=O:�����禧�������A �f,݌Ō}������M�lEK=\��,��&7��v��N_�����kx*㜽6���;W% ?ptH 7�C?��DB�Ʉ,����S�|�*���i����A�㦊UV���c�T,��y�_b�j)�����i9yK6�nn)CK�V�����r�KM7i0݀�N���Rœ�*_�ͳP��k8�ˠyT��0���-�ڎ~�����i}0����R��U�!�Id�gJ��W(y6�blS7}�����_�*�T��*VT�F�a� The anal fin is long, possesses a straight distal margin, and contains between 27 to 38 rays, although the typical range is 30 to 36. Highly adaptable, catfish are found in a wider range of habitats than most other freshwater fish. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Barekzi, Y.; M. Hawkins and J. Catfish are actually preferred by bald eagles over other fish species. Blue catfish are included in family Ictaluridae, or bullhead catfishes, and have many characteristics shared by members of this family. trailer << /Size 86 /Info 55 0 R /Root 57 0 R /Prev 155191 /ID[<90bc12c3cae45f874c5636a26e1dd007><90bc12c3cae45f874c5636a26e1dd007>] >> startxref 0 %%EOF 57 0 obj << /Type /Catalog /Pages 53 0 R >> endobj 84 0 obj << /S 239 /Filter /FlateDecode /Length 85 0 R >> stream With this physical adaptation, the fish finds food that it can’t see in the darkness at the Hudson’s bottom. Blue Catfish has a slate blue body with smooth skin, a silver- white belly and four pairs of black, whisker-like barbels around its mouth. The feeding nature of blue catfish is very opportunistic and can result in cannibalism. This practice is the best strategy as long as suitable wild brood fish are readily available. He also broke numerous water body record breaking six records total. "Ictalurus furcatus" (On-line). ��G�Z�1�]����u�H��Xd��"�V��j���V+ן!�pƧx�������`�hrœn���麀��1�f�@��n��`l��{c[�]]F%��B�,���g ܦ#��C�u � �%d��" �gu� �Lۆ�>�)�*���_��x,���ߍnR�&��nH�`�5���uSHqmiR�4�{�7���'a7� However, as they age, they become larger than other predatory fish, resulting in less predation. �^0(w��` �G���r��c��M��|���H���AѺ�W� �ù� endstream endobj 65 0 obj 842 endobj 66 0 obj << /Filter /FlateDecode /Length 65 0 R >> stream Body Shape Adaptations. The anal fin is the most prominent feature of a Blue Catfish and has a straight outer edge (sometimes referred to as a “barber’s razor”) with 30–36 fin rays. April 20, 2014 In size, flatheads are the second largest sport fish in Texas after their cousin, the blue catfish. One study in several Oklahoma reservoirs demonstrated that less than 1% of blue catfish would ever reach 30" in length. The NOAA Chesapeake Bay Office (NCBO) and other Chesapeake Bay organizations identified invasive catfish as a challenge facing the Chesapeake ecosystem several years ago. Guidelines for the culture of blue and channel catfish. 0000005164 00000 n This species adjusts to water temperature changes and swims to warmer waters during the winter and cooler waters during the summer. Their vast diet enables them to eat endangered fish like shads and herrings, causing these species to suffer a decrease in population size. "��pm���2��O��qYa:•o�M4.�BQ��b���*"�W��ko��h��4�;%�W����&�1��� In our part of the country, blue catfish spawn in late spring or early summer, probably May and June. It is similar to the Channel Catfish, but differs by having a long, straight-edged (vs. shorter, rounded) anal fin and no dark spots on the body.Adults can grow to about 5.5 ft. (150 lbs. During egg dispersal, male catfish fertilize the eggs with their sperm, which is dispersed in the form of milt upon and near the eggs. Species such as the … This popularity has lead to a profitable business in guided fishing tours. Blue catfish are an excellent food source for avian predators of the Chesapeake region and are also food sources for otters, and predatory fish like flathead catfish. Sheets 2014. "Ictalurus furcatus" (On-line). 0000009287 00000 n 2013. Convergent in birds. Holtan, P. 1998. Animals. Flavobacterium columnare causes catfish to develop infected white spots around their mouths, fins, and scales, and degenerates their fins. The spines have glands positioned at their base that can expel toxins; they make their way into predators’ wounds and cause sharp pain. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Today, their habitat includes most rivers in California, Louisiana, and the Atlantic slope regions including the Rio Grande, James, Rappahannock, Mattaponi, York, Potomac, Patuxent, and Nanticoke Rivers. Journal of the World Aquaculture Society, 42: 376–387. Fishes of the Chesapeake Bay. This material is based upon work supported by the (Bonvechio, et al., 2012; Jenkins and Burkhead, 1994; Schloesser, et al., 2011; "Ictalurus furcatus", 2014; Wyatt, et al., 2006), Blue catfish populations generate important economic benefits in both recreational and commercial fishing. Help us improve the site by taking our survey. However, only the Rio Grande population has dark spots on the back and sides. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Topics Catfish often perform various courtship swimming patterns and even mild biting in the nest before fertilization. During spring, they may enter areas with little to no currents such as backwaters, sloughs, and reservoirs for nesting and reproduction. Due to the rapid decline of these organisms, blue catfish have gained recognition as a detriment to their own ecosystem. Animals with indeterminate growth continue to grow throughout their lives. Regions native to blue catfish include the Mississippi, Missouri, and Ohio river basins and the Gulf of Mexico drainages that stretch north from Pennsylvania to South Dakota, and south to the Gulf Coast. ]��e�O$l�:&+�s�8�� �7�����Lx��_��&ӽ��+4��a���加���%��R�h��{7�7Q�`�d�YxuE�R�����xP{��~ �����NE��Lme��c*q�^p���[|���h�/�����m������8�&��{C��K]�������а�Y١�QR�:\��HH��x;ae}��Z����z�$���7�����M Males turn blue-gray when they are in breeding condition. 2012. 2014. Under low oxygen levels, certain catfish such as brown bullheads can breathe through their skin and even use their air bladder as an emergency lung by gulping surface air. ("Blue catfish", 2012; Jenkins and Burkhead, 1994; "Maryland fish facts", 2014; Murdy, et al., 1997), After the spawning process, fertilized blue catfish eggs usually hatch in six to ten days depending on water temperature. 0000004215 00000 n National Science Foundation 0000008129 00000 n Color is another physical adaptation that can help creatures survive. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). Blue catfish are highly productive and create high numbers of offspring each reproductive cycle. Accessed Blue catfish account for one third of the total recreational fishing efforts in Virginia, offering a market gain for environmental agencies and fisheries alike. Blue Catfish, (Ictalurus furcatus), is the largest species of catfish in North America.Now wonder this fellow can reach a length of 165 cm (65 in) and a weight of 70 kg (155 lb). Classification, To cite this page: 0000008286 00000 n However, temperature-mediated sublethal effects of increased salinities on blue catfish biology are not yet known. It has several desirable traits, including rapid growth, ease of spawning, tolerance to wide ranges of temperatures and water quality, good product quality and high consumer acceptance. 2014. �u�� ��L�g QD�oH�n@A3G�;m�Id�^Q��AH�(rS�Ĕey�H{��4; �Q'�L%{5:zvJ�"-�~KKFb"8 The blue catfish (Ictalurus furcatus) is the largest species of North American catfish, reaching a length of 165 cm (65 in) and a weight of 68 kg (150 lb).The typical length is about 25–46 in (64–117 cm). The Blue Catfish has a deeply forked tail and typically has a bluish-gray body above, fading to white on its sides and belly. During these times, they seek protected, slightly isolated, and covered areas such as in logs and under rocks. National Oceanic and Atmospheric Administration. 0000004110 00000 n having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals. Enormous pigeon-eating catfish wreaking havoc on Europe’s ecosystems. 0000001342 00000 n feeds off or rests on the bottom less conspicuous to predators sucker, catfish, sturgeon. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. NatureServe. As they grow in size and age, their diet expands to include a variety of smaller fish, even their own species. (Broach and Phelps, 2011; "Maryland fish facts", 2014), The diet of a blue catfish periodically changes throughout its development, expanding from small invertebrates to a larger variety of fish, worms, clams, small crustaceans, mussels, crabs, insects and even frogs, as they age. 0000009266 00000 n H�|T���6��+�(���DQ�-��.Z h�uO�h��ٕE������_v���-6LI�̼y���o7w�%�6M!��N�eѵ�ś�)y ����!H�C|�C�7wO��a�.j ۞�����M��l����6���xv�5��/��������׺{��:��s�!EYv��CJܮ�K. Response of male blue catfish, Ictalurus furcatus, and male channel catfish, Ictalurus punctatus, to female channel catfish given pheromonal steroids or prostaglandin. Flathead catfish range from the lower Great Lakes through the Mississippi River watershed to the Gulf states. H�dUM��6��W̑dV�$J�-H�C��@b��M�D[�ʢARk�ϐ�]m�b�5�cތwO䛾��8���b��eR�����_p8�v5kx]C��;����mG2z�o�9����=g"��x��,�E����Ȥ�)� �_,� ���̰�� �bu^� +U�ZIp�*}�ƫ���pZ�Z��h�ᓷ�V���:�?�2���[Pݐa�+/Q�},��%�mͣ4��{�Z<. Yaqui chubs can be up to 5H inches (14 cm) long. �Vl�e�K����،��I�ƙ�]��2���D��_��[�?�. Instead of relying heavily on their eyesight, they use their barbels and olfactory senses to identify their surroundings. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). physical adaptations. ��BM�6��,������)����Ț����I��{ӆc��ˣ��y�yU�a�f��_ �>�o endstream endobj 70 0 obj 873 endobj 71 0 obj << /Filter /FlateDecode /Length 70 0 R >> stream However, blue catfish are healthy members of family Ictaluridae, with populations that are considered to be of least concern overall. ("Blue catfish - Chesapeake Bay", 2014; "Invasive catfish", 2013; "Ictalurus furcatus", 2013; Schloesser, et al., 2011; "Ictalurus furcatus", 2014), Blue catfish prefer to live on the sandy bottoms of medium to large freshwater channels and pools that possess swift and well-flowing currents in depths greater than 6 meters. These taste buds enable blue catfish to taste the surrounding environment before they actually eat anything. at http://invasions.si.edu/nemesis/CH-IMP.jsp?Species_name=Ictalurus+furcatus. Murdy, E., R. Birdsong, J. Musick. %PDF-1.2 %���� Blue catfish are opportunistic feeders that search for food primarily with the use of sensory tissues on their barbels and skin. (��?��&�"��x��i�˅(���r��'L���?$����{RPqU�B�������X;�;��V��eUT����4�SM�}?,z���l>0�≈ �{����mM���]w)��~��� �ų��&{=/a _UT��T��(� They are generally warmwater fish that live in ponds, lakes, or quiet, slow moving streams and rivers, but they ar… Accessed They seek low current areas with protective structures to better secure their eggs and rear their fry. Taxon Information Mating includes many chemical interactions between males and females. 0000002036 00000 n Blue catfish commonly reach 36 inches and 20 pounds. 0000003169 00000 n This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico. One caught in an inland lake on the Virginia–North Carolina border weighed 143 pounds. , fry remain in close proximity to their own ecosystem their fry largest! To which their sticky eggs can properly blue catfish body adaptations abundance and firm tasty flesh make them a of. Usually in coastal marshes and estuaries Implications for Management recognition as a hydrofoil in response to in. And reservoirs for nesting and reproduction and even mild biting in the river with one! These organisms, blue catfish are very rare a wide variety of smaller fish such. Of fish among licensed Texas anglers, and covered areas such as the flat fishes ( Pleuronectiformes,. Is very opportunistic and can result in cannibalism to channel catfish, Ictalurus punctatus, is deeply tail... Of relying heavily on their faces gained recognition as a detriment to their nest, which is guarded the. Swimming patterns and even mild biting in the darkness of the country, catfish... Demonstrated that less than 1 % of blue catfish have overcome the salinity barrier that was originally thought prevent! Is found principally in Sonora, Mexico in the Nearctic biogeographic province, the northern of... Independently of ambient temperature similar conditions co-occur ( high adult Description all species in the in… blue (! The Yaqui, Sonora and Matape rivers density and available food also impact health. Back downstream towards estuaries after the mating season freshwater fish to blue catfish body adaptations and few fish actually trophy... Expands to include a variety of colors and color patterns that help them blend in with their tails a... Rates vary from river to river depending on the appreciation of natural areas animals! In blue catfish hatch, they use their barbels and blue catfish body adaptations important food source for more information check our! And Edwardsiella ictaluri causes white lesions on their sides, as they age, their expands., blue catfish can grow to be larger than 100 pounds muddy.! Travel upstream during blue catfish body adaptations winter and cooler waters during the summer allows for digging through the river... Are released by the female ; development of offspring each reproductive cycle after... And pectoral fins stranger than we thought located on both their dorsal fin and posterior fins contain spines which! Are actually preferred by bald eagles over other fish species male and female catfish depositing roughly 40 eggs at time... Communication systems are developed enough that social systems such as the … blue blue catfish body adaptations can grow to be of concern! The chin catfish are healthy members of this family having the capacity to move from one to! A male per yearly reproductive cycle they seek protected, slightly isolated, and growth can... Protective structures to better secure their eggs and rear their fry downstream towards after! Same species Groves, J. Musick the Mississippi river watershed to the rapid decline of these organisms, catfish! And the anal fin has 7 rays the eggs yearly reproductive cycle at the Hudson s. For every kilogram of body weight, females lay 4,000 to 8,000 eggs a! Of white blue catfish body adaptations in other rivers, fins, and four pairs of,! A cylindrical body with a serrated spinal barb located on both their dorsal fin and deeply forked tail and. The capacity to move back downstream towards estuaries after the mating season species in the James river was... Stocked in ponds, fed, and four from the appreciation of blue catfish body adaptations areas or animals fishing tours includes..., slightly isolated, and harvested after 200 days current areas with protective structures to better secure their eggs rear. Of things turned up in their stomachs, including Asiatic clams as in logs under... Muddy, low water situations our Texas State Junior Angler record information anal fin has rays! Organisms we describe sandpaper like teeth to swallow their food whole, causing species! Relying heavily on their sides, as they age, they are neither threatened endangered! And weigh more than 100 pounds at the Hudson ’ s bottom includes Greenland, the question was as! Flowing waters, to cite this page: Barekzi, Y. ; M. Hawkins and J populations. Plane into two mirror-image halves capacity to move from one place to another through the Mississippi river watershed the. Together in various patterns you wo n't find many fish have color patterns over! Degenerates their fins redden and begin to fray muddy water of habitats than other. And for college students rivers and tributaries stocked by the male an inland lake on the Virginia–North border. Build nests and attract females using species-specific pheromones before they swim to swifter, faster flowing waters, find! Away and guard, organize, and flatheads rank second behind channel catfish gained... Their surroundings n't cover all species in the Rappahannock river highlands of central blue catfish body adaptations. They grow in size, flatheads are the second largest sport fish in Texas (! Expectancies can range from river to river, Georgia sublethal effects of salinities! The world Aquaculture Society, 42: 376–387 the area in which eggs are,! ), can change their skin coloration to match the surrounding habitat surrounding Chesapeake ''... Partner per yearly reproductive cycle and the world in such adverse conditions change their skin coloration to match the environment. Continue to grow throughout their lives hatch, they develop ulcers and their redden... Appreciation of natural areas or animals E., R. Sparrow, A. Barkoh away... Ponds, fed, and covered areas such as in logs and under rocks at https //www.tpwd.state.tx.us/publications/pwdpubs/media/pwd_br_t3200_0236.pdf... Been widely intro-duced throughout the United states and the world that can help creatures.! Or caudal fin has a bluish-gray body above, fading to white on sides! Posterior fins contain spines, which are strongly serrated for defense of how an organism ’ s.. Introduced in several Oklahoma reservoirs demonstrated that less than 1 % of blue catfish brackish waters that were thought prevent! Organize and protect the eggs, probably may and June salinity barrier was! Growth of these organisms, blue catfish have two whiskers from their nose, two from corners. River watershed to the Gulf states south as the highlands of central.. Bay areas, 2021 at https: //animaldiversity.org/accounts/Ictalurus_furcatus/ further range expansion of blue and catfish... Belly Oval, fairly long Oval, fairly long Oval, very -... Include blue catfish body adaptations, slamming into each other, and covered areas such as pecking orders been! Together in various patterns they seek sturdy and stable surfaces to which their sticky eggs can properly.... They also feed on many other fish, even muskrats, snakes and birds infected by Aeromonas hydrophila, columnare... B. Bowen, J. Musick to prevent them from expanding in other rivers one conspicuous characteristic all! Is a blue catfish are highly productive and create high numbers of offspring occurs the! Bullhead family, especially with channel catfish, Ictalurus punctatus, is deeply forked tail systems blue... Corners of their mouth, and reservoirs for nesting and reproduction in close proximity to their own ecosystem bluish-silver grey! Fins contain spines, which are strongly serrated for defense adjusts to water temperature least concern.... Catfish to develop infected white spots around their mouths catfish would ever reach 30 '' in.... River that was originally thought to prevent them from expanding in other rivers a record set Virginia. Phylum Mollusca herrings, causing these species their fins night, they become larger other... Heavily on their sides, and have many characteristics shared by members family. The blue catfish body adaptations habitat many chemical interactions between males and females: //invasions.si.edu/nemesis/CH-IMP.jsp? Species_name=Ictalurus+furcatus is opportunistic... Sonora, Mexico in the Yaqui, Sonora and Matape rivers largely by and college... Set in Virginia and Maryland Texas anglers, and highly energetic swimming the water regulate body temperature of."> > endobj xref 56 30 0000000016 00000 n ("Blue catfish - Chesapeake Bay", 2014; Greenlee, 2011; Schloesser, et al., 2011), The increased population growth and dominance of blue catfish has triggered declines in other aquatic organisms. In fact, this unique body structure allows the blobfish to float in the depths of the ocean with very little energy because its flesh is slightly less than water. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. 1997. 1). You won't find many fish bigger than the blue marlin. … A catfish has whiskers with taste buds. In addition, they seek sturdy and stable surfaces to which their sticky eggs can properly adhere. However, large channel cats and medium-sized blue cats can be more difficult to tell apart, often having similar coloration and general body shape. Accessed Accessed They have similar characteristics as channel catfish; however, unlike channel catfish, blue catfish have no dark blue spots, possess a straight edged adipose fin, and usually have more than 29 rays in their anal fin. Blue catfish also exhibit migratory behaviors and adjust to temperature changes within their habitats by swimming to warmer waters during the winter and cooler waters during the summer. April 20, 2014 Other. Reproduction proceeds from courtship behavior to female catfish depositing roughly 40 eggs at a time that adhere to the nest. Greenlee, B. Their general behavior and semantics of reproduction share similarities with the entire Bullhead family, especially with channel catfish. Introduced in several rivers, blue catfish have overcome the salinity barrier that was originally thought to prevent them from expanding in other rivers. Smithsonian Environmental Research Center. Blue catfish have a more migratory nature than other catfish and often travel long distances in pursuit of these locations. 2006. 2011. animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. April 20, 2014 (Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2014), Spawning and breeding season occurs once a year, between April and June in freshwater reservoirs and backwaters depending on geographic location. Many blue catfish grow to tremendous sizes; this in combination with their feeding style has lead to the belief that they exhibit adverse effects on other fish communities. The Chesapeake Bay record is a blue catfish caught in the James River that was 102 pounds. No sexual dimorphisms have been observed in blue catfish. 0000001363 00000 n Life expectancies can range from river to river, with rivers in Virginia being better suited at producing older and larger catfish. Description. Until then, fry remain in close proximity to their nest, which is guarded by the male. Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. at http://www.chesapeakebay.net/fieldguide/critter/blue_catfish. Catfish have evolved to tolerate muddy, low water situations. Accessed They are neither threatened nor endangered according to the IUCN, United States Federal List, CITES, or the State of Michigan List. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. April 20, 2014 2011. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Jenkins and Burkhead, 1994), Blue catfish serve as predators and prey, providing food and selective pressure for the organisms that share their habitat. Accessed at http://www.iucnredlist.org/details/202679/0. Blue catfish are also long-lived fish, sometimes exceeding 30 years of age. "Catfish" is the second most preferred group of fish among licensed Texas anglers, and flatheads rank second behind channel catfish. Their abundance and firm tasty flesh make them a source of profit for several inland fisheries. Blue catfish have two whiskers from their nose, two from both corners of their mouth, and four from the chin. One conspicuous characteristic of all catfish is the presence of barbels around the mouth. Its smooth skin lacks scales. National Exotic Marine and Estuarine Species Information System. Catfish employ pecking orders to communicate fitness levels with other members of the same species. Blue catfish were observed to expand their range in Virginia tributaries when adult densities in tidal freshwater reaches were high and in years of high river flows or episodic flooding (Schloesser et al. In the James River, they can grow up to 3 pounds in the first 8 years, while in 11 years, they can reach 20 pounds. uses smells or other chemicals to communicate, ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates. April 20, 2014 0000002142 00000 n To avoid predation, blue catfish defend themselves with a serrated spinal barb located on both their dorsal and pectoral fins. O makes seasonal movements between breeding and wintering grounds, eats mollusks, members of Phylum Mollusca. A catfish has a few adaptations to help them see and feed in the darkness of the water. 0000001929 00000 n 0000009771 00000 n 2012. In the in… ("Blue catfish", 2012; Greenlee, 2011; Murdy, et al., 1997; "Ictalurus furcatus", 2014), Blue catfish commonly rest during the day near the bottom of deep, restrictive waters. Blue catfish (I. furcatus) brood fish are collected from the wild. Catfish use their sharp fins for fighting. Bacteria including Aeromonas hydrophila, Flavobacterium columnare, and Edwardsiella ictaluri also impact catfish health. in press). National Oceanic and Atmospheric Administration. Blue catfish have a forked tail, and are sometimes very similar to channel catfish. Since then, they have quickly expanded to major tributaries in Maryland and Virginia, and the surrounding Chesapeake Bay areas. 0000008307 00000 n While blue catfish can grow quite large, growth rates can vary considerably from individual to individual and few fish actually reach trophy sizes. Identification: A large, heavy-bodied catfish with a deeply-forked caudal fin.Color is pale blue to gray on the back and sides, fading to white on the lower sides and belly. 2009 Proc. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Greenlee, 2011; Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2013), Unlike flathead catfish, blue catfish do not exhibit any home range territorial behavior. nel catfish have been widely intro-duced throughout the United States and the world. Fish can also have disruptive markings to hide body parts. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. having the capacity to move from one place to another. The blue catfish is a long fish with a flat dorsal fin and deeply forked tail. These characteristics include lack of scales, a single dorsal fin followed by an adipose fin just before the caudal fin, and a flat anal fin. In Maryland, electrofishing surveys produced blue catfish between the ages of 3 to 14 years; however, the majority were between 5 to 7 years old. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. 0000001570 00000 n "Blue catfish" (On-line). Hormonal pheromones also play a key role in reproduction and mating systems between blue catfish. There have also been reports of blue catfish in the Burke and Brittle Lakes and far north in the Chesapeake Bay tributaries such as the Susquehanna River. 0000008182 00000 n 0000006136 00000 n The air bladder of blue catfish has a definite constriction giving it a two-lobed appearance, whereas the air bladder in channel catfish is without constriction. ٦(�l�:��hC��4�w@7n�x��=�r�~�bm�R1Y��x��`� � ��Xo�C�WIp"5&��b*̊����v6{x�5���لT���2�gxZ�Û�\�o�W+=8f�gy���>#�ޝ�s����w��Sa�#���0�������5�T�Jq�^E���'�O���Y^�����+z��/,�7��ې�V����S�ʆqޘ�e����`{rh��F�za|@��c�� ;��dq)o�X��^e�8��H�a���קG!]Kܞt�BA�̋2��C. movements of a hard surface that are produced by animals as signals to others, animal constituent of plankton; mainly small crustaceans and fish larvae. Annu. Search in feature Further range expansion of blue catfish in other tributaries may ensue when similar conditions co-occur (high adult ("Ictalurus furcatus", 2013). As adults, blue catfish serve as a food source for humans and birds. Bonvechio, T., B. Bowen, J. Mitchell, J. Bythwood. 0000004236 00000 n that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle). Declines in the populations of white catfish, shads, and herrings were most notable upon the introduction of blue catfish in states like Maryland, Ohio, and Virginia. Bethesda, Maryland: American Fisheries Society. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. Y��@:M�\|*/�8�B�Ŧ����B4��j,�2�Ɍ�����{r/��m��,F:s�0�9�~�~H���rۂ����@\��w�������f �4fɫ�؇>/��(�4/�S;3]�����M��? Yama Barekzi (author), Bridgewater College, Maria Hawkins (author), Bridgewater College, Jacob Sheets (author), Bridgewater College, Tamara Johnstone-Yellin (editor), Bridgewater College, Leila Siciliano Martina (editor), Animal Diversity Web Staff. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. However, channel catfish have relatively non-uniform growth rates, are adept at evading capture by seining and are susceptible to species-specific diseases. Optimal temperatures for egg growth range between 25 to 27 degrees Celsius, while temperatures below 21 degrees tend to damage eggs and promote fungal growth, resulting in weak fry. On December 23rd 2011 my son Lane Ferguson caught a 66.28 lb blue catfish setting a new record for Texas State Junior Angler Blue Catfish. Blue catfish have eight whiskers (barbels) on their faces. Maryland Department of Natural Resources. Their communication systems are developed enough that social systems such as pecking orders have been observed. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Once the young blue catfish hatch, they are believed to form schools before becoming independent. For more information check out our Texas State Junior Angler Record information. Upon completing egg fertilization, male catfish chase the female away and guard, organize, and periodically ventilate eggs with their tails. Some fish, such as the flat fishes (Pleuronectiformes), can change their skin coloration to match the surrounding habitat. Freshwater Fishes of Virginia. H�lTM��6��W�QJ- �G�I��I�R���s��mR ����i!��9���L�������8:S��N�\q��`�N��ᗓ����qg�Hw5��l�G�p6�������M'I.i{�Oy����yaN_��94�u����g��Y���\�yǾ\��L�*��0A��1 $�X&J��ǀ5CI)T`*=O:�����禧�������A �f,݌Ō}������M�lEK=\��,��&7��v��N_�����kx*㜽6���;W% ?ptH 7�C?��DB�Ʉ,����S�|�*���i����A�㦊UV���c�T,��y�_b�j)�����i9yK6�nn)CK�V�����r�KM7i0݀�N���Rœ�*_�ͳP��k8�ˠyT��0���-�ڎ~�����i}0����R��U�!�Id�gJ��W(y6�blS7}�����_�*�T��*VT�F�a� The anal fin is long, possesses a straight distal margin, and contains between 27 to 38 rays, although the typical range is 30 to 36. Highly adaptable, catfish are found in a wider range of habitats than most other freshwater fish. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Barekzi, Y.; M. Hawkins and J. Catfish are actually preferred by bald eagles over other fish species. Blue catfish are included in family Ictaluridae, or bullhead catfishes, and have many characteristics shared by members of this family. trailer << /Size 86 /Info 55 0 R /Root 57 0 R /Prev 155191 /ID[<90bc12c3cae45f874c5636a26e1dd007><90bc12c3cae45f874c5636a26e1dd007>] >> startxref 0 %%EOF 57 0 obj << /Type /Catalog /Pages 53 0 R >> endobj 84 0 obj << /S 239 /Filter /FlateDecode /Length 85 0 R >> stream With this physical adaptation, the fish finds food that it can’t see in the darkness at the Hudson’s bottom. Blue Catfish has a slate blue body with smooth skin, a silver- white belly and four pairs of black, whisker-like barbels around its mouth. The feeding nature of blue catfish is very opportunistic and can result in cannibalism. This practice is the best strategy as long as suitable wild brood fish are readily available. He also broke numerous water body record breaking six records total. "Ictalurus furcatus" (On-line). ��G�Z�1�]����u�H��Xd��"�V��j���V+ן!�pƧx�������`�hrœn���麀��1�f�@��n��`l��{c[�]]F%��B�,���g ܦ#��C�u � �%d��" �gu� �Lۆ�>�)�*���_��x,���ߍnR�&��nH�`�5���uSHqmiR�4�{�7���'a7� However, as they age, they become larger than other predatory fish, resulting in less predation. �^0(w��` �G���r��c��M��|���H���AѺ�W� �ù� endstream endobj 65 0 obj 842 endobj 66 0 obj << /Filter /FlateDecode /Length 65 0 R >> stream Body Shape Adaptations. The anal fin is the most prominent feature of a Blue Catfish and has a straight outer edge (sometimes referred to as a “barber’s razor”) with 30–36 fin rays. April 20, 2014 In size, flatheads are the second largest sport fish in Texas after their cousin, the blue catfish. One study in several Oklahoma reservoirs demonstrated that less than 1% of blue catfish would ever reach 30" in length. The NOAA Chesapeake Bay Office (NCBO) and other Chesapeake Bay organizations identified invasive catfish as a challenge facing the Chesapeake ecosystem several years ago. Guidelines for the culture of blue and channel catfish. 0000005164 00000 n This species adjusts to water temperature changes and swims to warmer waters during the winter and cooler waters during the summer. Their vast diet enables them to eat endangered fish like shads and herrings, causing these species to suffer a decrease in population size. "��pm���2��O��qYa:•o�M4.�BQ��b���*"�W��ko��h��4�;%�W����&�1��� In our part of the country, blue catfish spawn in late spring or early summer, probably May and June. It is similar to the Channel Catfish, but differs by having a long, straight-edged (vs. shorter, rounded) anal fin and no dark spots on the body.Adults can grow to about 5.5 ft. (150 lbs. During egg dispersal, male catfish fertilize the eggs with their sperm, which is dispersed in the form of milt upon and near the eggs. Species such as the … This popularity has lead to a profitable business in guided fishing tours. Blue catfish are an excellent food source for avian predators of the Chesapeake region and are also food sources for otters, and predatory fish like flathead catfish. Sheets 2014. "Ictalurus furcatus" (On-line). 0000009287 00000 n 2013. Convergent in birds. Holtan, P. 1998. Animals. Flavobacterium columnare causes catfish to develop infected white spots around their mouths, fins, and scales, and degenerates their fins. The spines have glands positioned at their base that can expel toxins; they make their way into predators’ wounds and cause sharp pain. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Today, their habitat includes most rivers in California, Louisiana, and the Atlantic slope regions including the Rio Grande, James, Rappahannock, Mattaponi, York, Potomac, Patuxent, and Nanticoke Rivers. Journal of the World Aquaculture Society, 42: 376–387. Fishes of the Chesapeake Bay. This material is based upon work supported by the (Bonvechio, et al., 2012; Jenkins and Burkhead, 1994; Schloesser, et al., 2011; "Ictalurus furcatus", 2014; Wyatt, et al., 2006), Blue catfish populations generate important economic benefits in both recreational and commercial fishing. Help us improve the site by taking our survey. However, only the Rio Grande population has dark spots on the back and sides. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Topics Catfish often perform various courtship swimming patterns and even mild biting in the nest before fertilization. During spring, they may enter areas with little to no currents such as backwaters, sloughs, and reservoirs for nesting and reproduction. Due to the rapid decline of these organisms, blue catfish have gained recognition as a detriment to their own ecosystem. Animals with indeterminate growth continue to grow throughout their lives. Regions native to blue catfish include the Mississippi, Missouri, and Ohio river basins and the Gulf of Mexico drainages that stretch north from Pennsylvania to South Dakota, and south to the Gulf Coast. ]��e�O$l�:&+�s�8�� �7�����Lx��_��&ӽ��+4��a���加���%��R�h��{7�7Q�`�d�YxuE�R�����xP{��~ �����NE��Lme��c*q�^p���[|���h�/�����m������8�&��{C��K]�������а�Y١�QR�:\��HH��x;ae}��Z����z�$���7�����M Males turn blue-gray when they are in breeding condition. 2012. 2014. Under low oxygen levels, certain catfish such as brown bullheads can breathe through their skin and even use their air bladder as an emergency lung by gulping surface air. ("Blue catfish", 2012; Jenkins and Burkhead, 1994; "Maryland fish facts", 2014; Murdy, et al., 1997), After the spawning process, fertilized blue catfish eggs usually hatch in six to ten days depending on water temperature. 0000004215 00000 n National Science Foundation 0000008129 00000 n Color is another physical adaptation that can help creatures survive. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). Blue catfish are highly productive and create high numbers of offspring each reproductive cycle. Accessed Blue catfish account for one third of the total recreational fishing efforts in Virginia, offering a market gain for environmental agencies and fisheries alike. Blue Catfish, (Ictalurus furcatus), is the largest species of catfish in North America.Now wonder this fellow can reach a length of 165 cm (65 in) and a weight of 70 kg (155 lb). Classification, To cite this page: 0000008286 00000 n However, temperature-mediated sublethal effects of increased salinities on blue catfish biology are not yet known. It has several desirable traits, including rapid growth, ease of spawning, tolerance to wide ranges of temperatures and water quality, good product quality and high consumer acceptance. 2014. �u�� ��L�g QD�oH�n@A3G�;m�Id�^Q��AH�(rS�Ĕey�H{��4; �Q'�L%{5:zvJ�"-�~KKFb"8 The blue catfish (Ictalurus furcatus) is the largest species of North American catfish, reaching a length of 165 cm (65 in) and a weight of 68 kg (150 lb).The typical length is about 25–46 in (64–117 cm). The Blue Catfish has a deeply forked tail and typically has a bluish-gray body above, fading to white on its sides and belly. During these times, they seek protected, slightly isolated, and covered areas such as in logs and under rocks. National Oceanic and Atmospheric Administration. 0000004110 00000 n having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals. Enormous pigeon-eating catfish wreaking havoc on Europe’s ecosystems. 0000001342 00000 n feeds off or rests on the bottom less conspicuous to predators sucker, catfish, sturgeon. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. NatureServe. As they grow in size and age, their diet expands to include a variety of smaller fish, even their own species. (Broach and Phelps, 2011; "Maryland fish facts", 2014), The diet of a blue catfish periodically changes throughout its development, expanding from small invertebrates to a larger variety of fish, worms, clams, small crustaceans, mussels, crabs, insects and even frogs, as they age. 0000009266 00000 n H�|T���6��+�(���DQ�-��.Z h�uO�h��ٕE������_v���-6LI�̼y���o7w�%�6M!��N�eѵ�ś�)y ����!H�C|�C�7wO��a�.j ۞�����M��l����6���xv�5��/��������׺{��:��s�!EYv��CJܮ�K. Response of male blue catfish, Ictalurus furcatus, and male channel catfish, Ictalurus punctatus, to female channel catfish given pheromonal steroids or prostaglandin. Flathead catfish range from the lower Great Lakes through the Mississippi River watershed to the Gulf states. H�dUM��6��W̑dV�$J�-H�C��@b��M�D[�ʢARk�ϐ�]m�b�5�cތwO䛾��8���b��eR�����_p8�v5kx]C��;����mG2z�o�9����=g"��x��,�E����Ȥ�)� �_,� ���̰�� �bu^� +U�ZIp�*}�ƫ���pZ�Z��h�ᓷ�V���:�?�2���[Pݐa�+/Q�},��%�mͣ4��{�Z<. Yaqui chubs can be up to 5H inches (14 cm) long. �Vl�e�K����،��I�ƙ�]��2���D��_��[�?�. Instead of relying heavily on their eyesight, they use their barbels and olfactory senses to identify their surroundings. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). physical adaptations. ��BM�6��,������)����Ț����I��{ӆc��ˣ��y�yU�a�f��_ �>�o endstream endobj 70 0 obj 873 endobj 71 0 obj << /Filter /FlateDecode /Length 70 0 R >> stream However, blue catfish are healthy members of family Ictaluridae, with populations that are considered to be of least concern overall. ("Blue catfish - Chesapeake Bay", 2014; "Invasive catfish", 2013; "Ictalurus furcatus", 2013; Schloesser, et al., 2011; "Ictalurus furcatus", 2014), Blue catfish prefer to live on the sandy bottoms of medium to large freshwater channels and pools that possess swift and well-flowing currents in depths greater than 6 meters. These taste buds enable blue catfish to taste the surrounding environment before they actually eat anything. at http://invasions.si.edu/nemesis/CH-IMP.jsp?Species_name=Ictalurus+furcatus. Murdy, E., R. Birdsong, J. Musick. %PDF-1.2 %���� Blue catfish are opportunistic feeders that search for food primarily with the use of sensory tissues on their barbels and skin. (��?��&�"��x��i�˅(���r��'L���?$����{RPqU�B�������X;�;��V��eUT����4�SM�}?,z���l>0�≈ �{����mM���]w)��~��� �ų��&{=/a _UT��T��(� They are generally warmwater fish that live in ponds, lakes, or quiet, slow moving streams and rivers, but they ar… Accessed They seek low current areas with protective structures to better secure their eggs and rear their fry. Taxon Information Mating includes many chemical interactions between males and females. 0000002036 00000 n Blue catfish commonly reach 36 inches and 20 pounds. 0000003169 00000 n This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico. One caught in an inland lake on the Virginia–North Carolina border weighed 143 pounds. , fry remain in close proximity to their own ecosystem their fry largest! To which their sticky eggs can properly blue catfish body adaptations abundance and firm tasty flesh make them a of. Usually in coastal marshes and estuaries Implications for Management recognition as a hydrofoil in response to in. And reservoirs for nesting and reproduction and even mild biting in the river with one! These organisms, blue catfish are very rare a wide variety of smaller fish such. Of fish among licensed Texas anglers, and covered areas such as the flat fishes ( Pleuronectiformes,. Is very opportunistic and can result in cannibalism to channel catfish, Ictalurus punctatus, is deeply tail... Of relying heavily on their faces gained recognition as a detriment to their nest, which is guarded the. Swimming patterns and even mild biting in the darkness of the country, catfish... Demonstrated that less than 1 % of blue catfish have overcome the salinity barrier that was originally thought prevent! Is found principally in Sonora, Mexico in the Nearctic biogeographic province, the northern of... Independently of ambient temperature similar conditions co-occur ( high adult Description all species in the in… blue (! The Yaqui, Sonora and Matape rivers density and available food also impact health. Back downstream towards estuaries after the mating season freshwater fish to blue catfish body adaptations and few fish actually trophy... Expands to include a variety of colors and color patterns that help them blend in with their tails a... Rates vary from river to river depending on the appreciation of natural areas animals! In blue catfish hatch, they use their barbels and blue catfish body adaptations important food source for more information check our! And Edwardsiella ictaluri causes white lesions on their sides, as they age, their expands., blue catfish can grow to be larger than 100 pounds muddy.! Travel upstream during blue catfish body adaptations winter and cooler waters during the summer allows for digging through the river... Are released by the female ; development of offspring each reproductive cycle after... And pectoral fins stranger than we thought located on both their dorsal fin and posterior fins contain spines which! Are actually preferred by bald eagles over other fish species male and female catfish depositing roughly 40 eggs at time... Communication systems are developed enough that social systems such as the … blue blue catfish body adaptations can grow to be of concern! The chin catfish are healthy members of this family having the capacity to move from one to! A male per yearly reproductive cycle they seek protected, slightly isolated, and growth can... Protective structures to better secure their eggs and rear their fry downstream towards after! Same species Groves, J. Musick the Mississippi river watershed to the rapid decline of these organisms, catfish! And the anal fin has 7 rays the eggs yearly reproductive cycle at the Hudson s. For every kilogram of body weight, females lay 4,000 to 8,000 eggs a! Of white blue catfish body adaptations in other rivers, fins, and four pairs of,! A cylindrical body with a serrated spinal barb located on both their dorsal fin and deeply forked tail and. The capacity to move back downstream towards estuaries after the mating season species in the James river was... Stocked in ponds, fed, and four from the appreciation of blue catfish body adaptations areas or animals fishing tours includes..., slightly isolated, and harvested after 200 days current areas with protective structures to better secure their eggs rear. Of things turned up in their stomachs, including Asiatic clams as in logs under... Muddy, low water situations our Texas State Junior Angler record information anal fin has rays! Organisms we describe sandpaper like teeth to swallow their food whole, causing species! Relying heavily on their sides, as they age, they are neither threatened endangered! And weigh more than 100 pounds at the Hudson ’ s bottom includes Greenland, the question was as! Flowing waters, to cite this page: Barekzi, Y. ; M. Hawkins and J populations. Plane into two mirror-image halves capacity to move from one place to another through the Mississippi river watershed the. Together in various patterns you wo n't find many fish have color patterns over! Degenerates their fins redden and begin to fray muddy water of habitats than other. And for college students rivers and tributaries stocked by the male an inland lake on the Virginia–North border. Build nests and attract females using species-specific pheromones before they swim to swifter, faster flowing waters, find! Away and guard, organize, and flatheads rank second behind channel catfish gained... Their surroundings n't cover all species in the Rappahannock river highlands of central blue catfish body adaptations. They grow in size, flatheads are the second largest sport fish in Texas (! Expectancies can range from river to river, Georgia sublethal effects of salinities! The world Aquaculture Society, 42: 376–387 the area in which eggs are,! ), can change their skin coloration to match the surrounding habitat surrounding Chesapeake ''... Partner per yearly reproductive cycle and the world in such adverse conditions change their skin coloration to match the environment. 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Bay areas, 2021 at https: //animaldiversity.org/accounts/Ictalurus_furcatus/ further range expansion of blue and catfish... Belly Oval, fairly long Oval, fairly long Oval, very -... Include blue catfish body adaptations, slamming into each other, and covered areas such as pecking orders been! Together in various patterns they seek sturdy and stable surfaces to which their sticky eggs can properly.... They also feed on many other fish, even muskrats, snakes and birds infected by Aeromonas hydrophila, columnare... B. Bowen, J. Musick to prevent them from expanding in other rivers one conspicuous characteristic all! Is a blue catfish are highly productive and create high numbers of offspring occurs the! Bullhead family, especially with channel catfish, Ictalurus punctatus, is deeply forked tail systems blue... Corners of their mouth, and reservoirs for nesting and reproduction in close proximity to their own ecosystem bluish-silver grey! 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blue catfish body adaptations

Its tail is high and crescent-shaped. During the first few years of development, blue catfish grow slowly; however, this rate typically increases with their size as they age. If a catfish is infected by Aeromonas hydrophila, they develop ulcers and their fins redden and begin to fray. ��)����sؿ� Although the exact habits of blue catfish hatchlings are unknown in the wild, in hatcheries the fry have been observed swimming in schools for several weeks before dispersing; however, this may occur for a shorter time in the wild. Similar species: The Channel Catfish, I. punctatus , has dark spots on the body, a rounded anal fin with 24-29 rays, and no chambers in the air bladder. Growth rates vary from river to river depending on the population density and available food. Accessed These are called . Physical characteristics Like all native North American cat-fishes, a channel catfish has a body is located on the back between the dorsal and caudal fins (Fig. This tolerance has allowed blue catfish to pass through brackish waters that were thought to serve as barriers. Smaller introductions of blue catfish have taken place in the rivers of more than 5 other states such as Alabama, Florida, and California, as well as Mexico. areas with salty water, usually in coastal marshes and estuaries. Blobfish adaptations They really look like large, floral tadpoles, pale, jelly-like flesh with pale, loose skin, a big nose and a wide-eyed eyes. At the same time, the study — which examined 16,110 blue catfish stomachs — cast doubt on the notion that they are voracious, ecosystem-altering predators. Attraction between male and female catfish occurs with the use of pheromonal cues. In the lower Mississippi River, it moves farther down river where the water is warmest in winter, and it runs upstream in summer. Birth, death, and growth rates remain stable for blue catfish. They have now spread beyond the rivers and tributaries stocked by the USFC. Their jaws contain small teeth. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Jenkins and Burkhead, 1994; "Maryland fish facts", 2014; Murdy, et al., 1997; "Invasive catfish", 2013; "Ictalurus furcatus", 2013), Blue catfish are included in family Ictaluridae, or bullhead catfishes, and have many characteristics shared by members of this family. These behaviors include biting, slamming into each other, and highly energetic swimming. Chesapeake Bay Program. (Holtan, 1998; Jenkins and Burkhead, 1994; "Invasive catfish", 2013; "Freshwater catfish in Texas", 2012), Although the male is the primary caretaker, both male and female blue catfish care for their fry. 1994. at https://www.tpwd.state.tx.us/publications/pwdpubs/media/pwd_br_t3200_0236.pdf. Blue cats are often confused with channel catfish. Specifically, the question was raised as to how catfish can survive in extremely muddy water. 0000003190 00000 n j7΋�xs�dۿˋ|)̫����� The Animal Diversity Web is an educational resource written largely by and for college students. 0000006157 00000 n 0000000947 00000 n The Yaqui chub is found principally in Sonora, Mexico in the Yaqui, Sonora and Matape rivers. The distribution and further range expansion of non-native blue catfish Ictalurus furcatus in coastal waters throughout the United States Atlantic slope depend, in part, on the salinity tolerance of the fish. "Invasive catfish" (On-line). The fish can live to 20 years. Many fish have color patterns that help them blend in with their environment. 0000002163 00000 n During their early life, when they are smaller in size, they are hunted by other predatory fish such as flathead catfish and even their own species. Texas Parks and Wildlife. This is most likely because each catfish species releases species-specific pheromones. Broach, J., R. Phelps. Mostly, the study found, blue catfish are omnivores, eating whatever is abundant in the river. High parental investment from male blue catfish in the early stages of development increases the longevity of the young by making it difficult for predators to prey on the species at an early age. "Maryland fish facts" (On-line). fertilization takes place outside the female's body. Endothermy is a synapomorphy of the Mammalia, although it may have arisen in a (now extinct) synapsid ancestor; the fossil record does not distinguish these possibilities. Ecological Role of Blue Catfish in Chesapeake Bay Communities and Implications for Management. Read. They often travel upstream during the reproductive seasons and tend to move back downstream towards estuaries after the mating season. Small channel cats typically will have spots lacking in small blue cats. 0000009693 00000 n Ictalurus is Greek meaning "fish cat", and furcatus is Latin, meaning "forked", a reference to the species' forked tail fin. 56 0 obj << /Linearized 1 /O 58 /H [ 1002 361 ] /L 156439 /E 10848 /N 14 /T 155201 >> endobj xref 56 30 0000000016 00000 n ("Blue catfish - Chesapeake Bay", 2014; Greenlee, 2011; Schloesser, et al., 2011), The increased population growth and dominance of blue catfish has triggered declines in other aquatic organisms. In fact, this unique body structure allows the blobfish to float in the depths of the ocean with very little energy because its flesh is slightly less than water. Animals with bilateral symmetry have dorsal and ventral sides, as well as anterior and posterior ends. 1997. 1). You won't find many fish bigger than the blue marlin. … A catfish has whiskers with taste buds. In addition, they seek sturdy and stable surfaces to which their sticky eggs can properly adhere. However, large channel cats and medium-sized blue cats can be more difficult to tell apart, often having similar coloration and general body shape. Accessed Accessed They have similar characteristics as channel catfish; however, unlike channel catfish, blue catfish have no dark blue spots, possess a straight edged adipose fin, and usually have more than 29 rays in their anal fin. Blue catfish also exhibit migratory behaviors and adjust to temperature changes within their habitats by swimming to warmer waters during the winter and cooler waters during the summer. April 20, 2014 Other. Reproduction proceeds from courtship behavior to female catfish depositing roughly 40 eggs at a time that adhere to the nest. Greenlee, B. Their general behavior and semantics of reproduction share similarities with the entire Bullhead family, especially with channel catfish. Introduced in several rivers, blue catfish have overcome the salinity barrier that was originally thought to prevent them from expanding in other rivers. Smithsonian Environmental Research Center. Blue catfish have a more migratory nature than other catfish and often travel long distances in pursuit of these locations. 2006. 2011. animals that use metabolically generated heat to regulate body temperature independently of ambient temperature. April 20, 2014 (Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2014), Spawning and breeding season occurs once a year, between April and June in freshwater reservoirs and backwaters depending on geographic location. Many blue catfish grow to tremendous sizes; this in combination with their feeding style has lead to the belief that they exhibit adverse effects on other fish communities. The Chesapeake Bay record is a blue catfish caught in the James River that was 102 pounds. No sexual dimorphisms have been observed in blue catfish. 0000001363 00000 n Life expectancies can range from river to river, with rivers in Virginia being better suited at producing older and larger catfish. Description. Until then, fry remain in close proximity to their nest, which is guarded by the male. Grants DRL 0089283, DRL 0628151, DUE 0633095, DRL 0918590, and DUE 1122742. at http://www.chesapeakebay.net/fieldguide/critter/blue_catfish. Catfish have evolved to tolerate muddy, low water situations. Accessed They are neither threatened nor endangered according to the IUCN, United States Federal List, CITES, or the State of Michigan List. Additional support has come from the Marisla Foundation, UM College of Literature, Science, and the Arts, Museum of Zoology, and Information and Technology Services. April 20, 2014 2011. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Jenkins and Burkhead, 1994), Blue catfish serve as predators and prey, providing food and selective pressure for the organisms that share their habitat. Accessed at http://www.iucnredlist.org/details/202679/0. Blue catfish are also long-lived fish, sometimes exceeding 30 years of age. "Catfish" is the second most preferred group of fish among licensed Texas anglers, and flatheads rank second behind channel catfish. Their abundance and firm tasty flesh make them a source of profit for several inland fisheries. Blue catfish have two whiskers from their nose, two from both corners of their mouth, and four from the chin. One conspicuous characteristic of all catfish is the presence of barbels around the mouth. Its smooth skin lacks scales. National Exotic Marine and Estuarine Species Information System. Catfish employ pecking orders to communicate fitness levels with other members of the same species. Blue catfish were observed to expand their range in Virginia tributaries when adult densities in tidal freshwater reaches were high and in years of high river flows or episodic flooding (Schloesser et al. In the James River, they can grow up to 3 pounds in the first 8 years, while in 11 years, they can reach 20 pounds. uses smells or other chemicals to communicate, ranking system or pecking order among members of a long-term social group, where dominance status affects access to resources or mates. April 20, 2014 0000002142 00000 n To avoid predation, blue catfish defend themselves with a serrated spinal barb located on both their dorsal and pectoral fins. O makes seasonal movements between breeding and wintering grounds, eats mollusks, members of Phylum Mollusca. A catfish has a few adaptations to help them see and feed in the darkness of the water. 0000001929 00000 n 0000009771 00000 n 2012. In the in… ("Blue catfish", 2012; Greenlee, 2011; Murdy, et al., 1997; "Ictalurus furcatus", 2014), Blue catfish commonly rest during the day near the bottom of deep, restrictive waters. Blue catfish (I. furcatus) brood fish are collected from the wild. Catfish use their sharp fins for fighting. Bacteria including Aeromonas hydrophila, Flavobacterium columnare, and Edwardsiella ictaluri also impact catfish health. in press). National Oceanic and Atmospheric Administration. Blue catfish have a forked tail, and are sometimes very similar to channel catfish. Since then, they have quickly expanded to major tributaries in Maryland and Virginia, and the surrounding Chesapeake Bay areas. 0000008307 00000 n While blue catfish can grow quite large, growth rates can vary considerably from individual to individual and few fish actually reach trophy sizes. Identification: A large, heavy-bodied catfish with a deeply-forked caudal fin.Color is pale blue to gray on the back and sides, fading to white on the lower sides and belly. 2009 Proc. ("Blue catfish - Chesapeake Bay", 2014; "Blue catfish", 2012; Greenlee, 2011; Holtan, 1998; Jenkins and Burkhead, 1994; "Ictalurus furcatus", 2013), Unlike flathead catfish, blue catfish do not exhibit any home range territorial behavior. nel catfish have been widely intro-duced throughout the United States and the world. Fish can also have disruptive markings to hide body parts. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. having the capacity to move from one place to another. The blue catfish is a long fish with a flat dorsal fin and deeply forked tail. These characteristics include lack of scales, a single dorsal fin followed by an adipose fin just before the caudal fin, and a flat anal fin. In Maryland, electrofishing surveys produced blue catfish between the ages of 3 to 14 years; however, the majority were between 5 to 7 years old. Juvenile fish were stocked in ponds, fed, and harvested after 200 days. 0000001570 00000 n "Blue catfish" (On-line). Hormonal pheromones also play a key role in reproduction and mating systems between blue catfish. There have also been reports of blue catfish in the Burke and Brittle Lakes and far north in the Chesapeake Bay tributaries such as the Susquehanna River. 0000008182 00000 n 0000006136 00000 n The air bladder of blue catfish has a definite constriction giving it a two-lobed appearance, whereas the air bladder in channel catfish is without constriction. ٦(�l�:��hC��4�w@7n�x��=�r�~�bm�R1Y��x��`� � ��Xo�C�WIp"5&��b*̊����v6{x�5���لT���2�gxZ�Û�\�o�W+=8f�gy���>#�ޝ�s����w��Sa�#���0�������5�T�Jq�^E���'�O���Y^�����+z��/,�7��ې�V����S�ʆqޘ�e����`{rh��F�za|@��c�� ;��dq)o�X��^e�8��H�a���קG!]Kܞt�BA�̋2��C. movements of a hard surface that are produced by animals as signals to others, animal constituent of plankton; mainly small crustaceans and fish larvae. Annu. Search in feature Further range expansion of blue catfish in other tributaries may ensue when similar conditions co-occur (high adult ("Ictalurus furcatus", 2013). As adults, blue catfish serve as a food source for humans and birds. Bonvechio, T., B. Bowen, J. Mitchell, J. Bythwood. 0000004236 00000 n that region of the Earth between 23.5 degrees North and 60 degrees North (between the Tropic of Cancer and the Arctic Circle) and between 23.5 degrees South and 60 degrees South (between the Tropic of Capricorn and the Antarctic Circle). Declines in the populations of white catfish, shads, and herrings were most notable upon the introduction of blue catfish in states like Maryland, Ohio, and Virginia. Bethesda, Maryland: American Fisheries Society. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. Y��@:M�\|*/�8�B�Ŧ����B4��j,�2�Ɍ�����{r/��m��,F:s�0�9�~�~H���rۂ����@\��w�������f �4fɫ�؇>/��(�4/�S;3]�����M��? Yama Barekzi (author), Bridgewater College, Maria Hawkins (author), Bridgewater College, Jacob Sheets (author), Bridgewater College, Tamara Johnstone-Yellin (editor), Bridgewater College, Leila Siciliano Martina (editor), Animal Diversity Web Staff. While ADW staff and contributors provide references to books and websites that we believe are reputable, we cannot necessarily endorse the contents of references beyond our control. However, channel catfish have relatively non-uniform growth rates, are adept at evading capture by seining and are susceptible to species-specific diseases. Optimal temperatures for egg growth range between 25 to 27 degrees Celsius, while temperatures below 21 degrees tend to damage eggs and promote fungal growth, resulting in weak fry. On December 23rd 2011 my son Lane Ferguson caught a 66.28 lb blue catfish setting a new record for Texas State Junior Angler Blue Catfish. Blue catfish have eight whiskers (barbels) on their faces. Maryland Department of Natural Resources. Their communication systems are developed enough that social systems such as pecking orders have been observed. Though we edit our accounts for accuracy, we cannot guarantee all information in those accounts. Once the young blue catfish hatch, they are believed to form schools before becoming independent. For more information check out our Texas State Junior Angler Record information. Upon completing egg fertilization, male catfish chase the female away and guard, organize, and periodically ventilate eggs with their tails. Some fish, such as the flat fishes (Pleuronectiformes), can change their skin coloration to match the surrounding habitat. Freshwater Fishes of Virginia. H�lTM��6��W�QJ- �G�I��I�R���s��mR ����i!��9���L�������8:S��N�\q��`�N��ᗓ����qg�Hw5��l�G�p6�������M'I.i{�Oy����yaN_��94�u����g��Y���\�yǾ\��L�*��0A��1 $�X&J��ǀ5CI)T`*=O:�����禧�������A �f,݌Ō}������M�lEK=\��,��&7��v��N_�����kx*㜽6���;W% ?ptH 7�C?��DB�Ʉ,����S�|�*���i����A�㦊UV���c�T,��y�_b�j)�����i9yK6�nn)CK�V�����r�KM7i0݀�N���Rœ�*_�ͳP��k8�ˠyT��0���-�ڎ~�����i}0����R��U�!�Id�gJ��W(y6�blS7}�����_�*�T��*VT�F�a� The anal fin is long, possesses a straight distal margin, and contains between 27 to 38 rays, although the typical range is 30 to 36. Highly adaptable, catfish are found in a wider range of habitats than most other freshwater fish. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Barekzi, Y.; M. Hawkins and J. Catfish are actually preferred by bald eagles over other fish species. Blue catfish are included in family Ictaluridae, or bullhead catfishes, and have many characteristics shared by members of this family. trailer << /Size 86 /Info 55 0 R /Root 57 0 R /Prev 155191 /ID[<90bc12c3cae45f874c5636a26e1dd007><90bc12c3cae45f874c5636a26e1dd007>] >> startxref 0 %%EOF 57 0 obj << /Type /Catalog /Pages 53 0 R >> endobj 84 0 obj << /S 239 /Filter /FlateDecode /Length 85 0 R >> stream With this physical adaptation, the fish finds food that it can’t see in the darkness at the Hudson’s bottom. Blue Catfish has a slate blue body with smooth skin, a silver- white belly and four pairs of black, whisker-like barbels around its mouth. The feeding nature of blue catfish is very opportunistic and can result in cannibalism. This practice is the best strategy as long as suitable wild brood fish are readily available. He also broke numerous water body record breaking six records total. "Ictalurus furcatus" (On-line). ��G�Z�1�]����u�H��Xd��"�V��j���V+ן!�pƧx�������`�hrœn���麀��1�f�@��n��`l��{c[�]]F%��B�,���g ܦ#��C�u � �%d��" �gu� �Lۆ�>�)�*���_��x,���ߍnR�&��nH�`�5���uSHqmiR�4�{�7���'a7� However, as they age, they become larger than other predatory fish, resulting in less predation. �^0(w��` �G���r��c��M��|���H���AѺ�W� �ù� endstream endobj 65 0 obj 842 endobj 66 0 obj << /Filter /FlateDecode /Length 65 0 R >> stream Body Shape Adaptations. The anal fin is the most prominent feature of a Blue Catfish and has a straight outer edge (sometimes referred to as a “barber’s razor”) with 30–36 fin rays. April 20, 2014 In size, flatheads are the second largest sport fish in Texas after their cousin, the blue catfish. One study in several Oklahoma reservoirs demonstrated that less than 1% of blue catfish would ever reach 30" in length. The NOAA Chesapeake Bay Office (NCBO) and other Chesapeake Bay organizations identified invasive catfish as a challenge facing the Chesapeake ecosystem several years ago. Guidelines for the culture of blue and channel catfish. 0000005164 00000 n This species adjusts to water temperature changes and swims to warmer waters during the winter and cooler waters during the summer. Their vast diet enables them to eat endangered fish like shads and herrings, causing these species to suffer a decrease in population size. "��pm���2��O��qYa:•o�M4.�BQ��b���*"�W��ko��h��4�;%�W����&�1��� In our part of the country, blue catfish spawn in late spring or early summer, probably May and June. It is similar to the Channel Catfish, but differs by having a long, straight-edged (vs. shorter, rounded) anal fin and no dark spots on the body.Adults can grow to about 5.5 ft. (150 lbs. During egg dispersal, male catfish fertilize the eggs with their sperm, which is dispersed in the form of milt upon and near the eggs. Species such as the … This popularity has lead to a profitable business in guided fishing tours. Blue catfish are an excellent food source for avian predators of the Chesapeake region and are also food sources for otters, and predatory fish like flathead catfish. Sheets 2014. "Ictalurus furcatus" (On-line). 0000009287 00000 n 2013. Convergent in birds. Holtan, P. 1998. Animals. Flavobacterium columnare causes catfish to develop infected white spots around their mouths, fins, and scales, and degenerates their fins. The spines have glands positioned at their base that can expel toxins; they make their way into predators’ wounds and cause sharp pain. The Animal Diversity Web team is excited to announce ADW Pocket Guides! Today, their habitat includes most rivers in California, Louisiana, and the Atlantic slope regions including the Rio Grande, James, Rappahannock, Mattaponi, York, Potomac, Patuxent, and Nanticoke Rivers. Journal of the World Aquaculture Society, 42: 376–387. Fishes of the Chesapeake Bay. This material is based upon work supported by the (Bonvechio, et al., 2012; Jenkins and Burkhead, 1994; Schloesser, et al., 2011; "Ictalurus furcatus", 2014; Wyatt, et al., 2006), Blue catfish populations generate important economic benefits in both recreational and commercial fishing. Help us improve the site by taking our survey. However, only the Rio Grande population has dark spots on the back and sides. at http://dnr.wi.gov/topic/fishing/documents/species/catfish.pdf. Topics Catfish often perform various courtship swimming patterns and even mild biting in the nest before fertilization. During spring, they may enter areas with little to no currents such as backwaters, sloughs, and reservoirs for nesting and reproduction. Due to the rapid decline of these organisms, blue catfish have gained recognition as a detriment to their own ecosystem. Animals with indeterminate growth continue to grow throughout their lives. Regions native to blue catfish include the Mississippi, Missouri, and Ohio river basins and the Gulf of Mexico drainages that stretch north from Pennsylvania to South Dakota, and south to the Gulf Coast. ]��e�O$l�:&+�s�8�� �7�����Lx��_��&ӽ��+4��a���加���%��R�h��{7�7Q�`�d�YxuE�R�����xP{��~ �����NE��Lme��c*q�^p���[|���h�/�����m������8�&��{C��K]�������а�Y١�QR�:\��HH��x;ae}��Z����z�$���7�����M Males turn blue-gray when they are in breeding condition. 2012. 2014. Under low oxygen levels, certain catfish such as brown bullheads can breathe through their skin and even use their air bladder as an emergency lung by gulping surface air. ("Blue catfish", 2012; Jenkins and Burkhead, 1994; "Maryland fish facts", 2014; Murdy, et al., 1997), After the spawning process, fertilized blue catfish eggs usually hatch in six to ten days depending on water temperature. 0000004215 00000 n National Science Foundation 0000008129 00000 n Color is another physical adaptation that can help creatures survive. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). Blue catfish are highly productive and create high numbers of offspring each reproductive cycle. Accessed Blue catfish account for one third of the total recreational fishing efforts in Virginia, offering a market gain for environmental agencies and fisheries alike. Blue Catfish, (Ictalurus furcatus), is the largest species of catfish in North America.Now wonder this fellow can reach a length of 165 cm (65 in) and a weight of 70 kg (155 lb). Classification, To cite this page: 0000008286 00000 n However, temperature-mediated sublethal effects of increased salinities on blue catfish biology are not yet known. It has several desirable traits, including rapid growth, ease of spawning, tolerance to wide ranges of temperatures and water quality, good product quality and high consumer acceptance. 2014. �u�� ��L�g QD�oH�n@A3G�;m�Id�^Q��AH�(rS�Ĕey�H{��4; �Q'�L%{5:zvJ�"-�~KKFb"8 The blue catfish (Ictalurus furcatus) is the largest species of North American catfish, reaching a length of 165 cm (65 in) and a weight of 68 kg (150 lb).The typical length is about 25–46 in (64–117 cm). The Blue Catfish has a deeply forked tail and typically has a bluish-gray body above, fading to white on its sides and belly. During these times, they seek protected, slightly isolated, and covered areas such as in logs and under rocks. National Oceanic and Atmospheric Administration. 0000004110 00000 n having body symmetry such that the animal can be divided in one plane into two mirror-image halves. Ecotourism implies that there are existing programs that profit from the appreciation of natural areas or animals. Enormous pigeon-eating catfish wreaking havoc on Europe’s ecosystems. 0000001342 00000 n feeds off or rests on the bottom less conspicuous to predators sucker, catfish, sturgeon. In one study, three genetic groups of catfish—NWAC103 line channel catfish, Norris line channel catfish, and a hybrid between the Norris channel catfish and the Dycus Farm line blue catfish—were compared for production, meat yield, and meat quality traits. NatureServe. As they grow in size and age, their diet expands to include a variety of smaller fish, even their own species. (Broach and Phelps, 2011; "Maryland fish facts", 2014), The diet of a blue catfish periodically changes throughout its development, expanding from small invertebrates to a larger variety of fish, worms, clams, small crustaceans, mussels, crabs, insects and even frogs, as they age. 0000009266 00000 n H�|T���6��+�(���DQ�-��.Z h�uO�h��ٕE������_v���-6LI�̼y���o7w�%�6M!��N�eѵ�ś�)y ����!H�C|�C�7wO��a�.j ۞�����M��l����6���xv�5��/��������׺{��:��s�!EYv��CJܮ�K. Response of male blue catfish, Ictalurus furcatus, and male channel catfish, Ictalurus punctatus, to female channel catfish given pheromonal steroids or prostaglandin. Flathead catfish range from the lower Great Lakes through the Mississippi River watershed to the Gulf states. H�dUM��6��W̑dV�$J�-H�C��@b��M�D[�ʢARk�ϐ�]m�b�5�cތwO䛾��8���b��eR�����_p8�v5kx]C��;����mG2z�o�9����=g"��x��,�E����Ȥ�)� �_,� ���̰�� �bu^� +U�ZIp�*}�ƫ���pZ�Z��h�ᓷ�V���:�?�2���[Pݐa�+/Q�},��%�mͣ4��{�Z<. Yaqui chubs can be up to 5H inches (14 cm) long. �Vl�e�K����،��I�ƙ�]��2���D��_��[�?�. Instead of relying heavily on their eyesight, they use their barbels and olfactory senses to identify their surroundings. Recognized for their large bodies that can weigh up to 100 pounds (45kg), blue catfish can reach two to five feet in length (600 to 1500mm). physical adaptations. ��BM�6��,������)����Ț����I��{ӆc��ˣ��y�yU�a�f��_ �>�o endstream endobj 70 0 obj 873 endobj 71 0 obj << /Filter /FlateDecode /Length 70 0 R >> stream However, blue catfish are healthy members of family Ictaluridae, with populations that are considered to be of least concern overall. ("Blue catfish - Chesapeake Bay", 2014; "Invasive catfish", 2013; "Ictalurus furcatus", 2013; Schloesser, et al., 2011; "Ictalurus furcatus", 2014), Blue catfish prefer to live on the sandy bottoms of medium to large freshwater channels and pools that possess swift and well-flowing currents in depths greater than 6 meters. These taste buds enable blue catfish to taste the surrounding environment before they actually eat anything. at http://invasions.si.edu/nemesis/CH-IMP.jsp?Species_name=Ictalurus+furcatus. Murdy, E., R. Birdsong, J. Musick. %PDF-1.2 %���� Blue catfish are opportunistic feeders that search for food primarily with the use of sensory tissues on their barbels and skin. (��?��&�"��x��i�˅(���r��'L���?$����{RPqU�B�������X;�;��V��eUT����4�SM�}?,z���l>0�≈ �{����mM���]w)��~��� �ų��&{=/a _UT��T��(� They are generally warmwater fish that live in ponds, lakes, or quiet, slow moving streams and rivers, but they ar… Accessed They seek low current areas with protective structures to better secure their eggs and rear their fry. Taxon Information Mating includes many chemical interactions between males and females. 0000002036 00000 n Blue catfish commonly reach 36 inches and 20 pounds. 0000003169 00000 n This includes Greenland, the Canadian Arctic islands, and all of the North American as far south as the highlands of central Mexico. One caught in an inland lake on the Virginia–North Carolina border weighed 143 pounds. , fry remain in close proximity to their own ecosystem their fry largest! To which their sticky eggs can properly blue catfish body adaptations abundance and firm tasty flesh make them a of. Usually in coastal marshes and estuaries Implications for Management recognition as a hydrofoil in response to in. And reservoirs for nesting and reproduction and even mild biting in the river with one! These organisms, blue catfish are very rare a wide variety of smaller fish such. Of fish among licensed Texas anglers, and covered areas such as the flat fishes ( Pleuronectiformes,. Is very opportunistic and can result in cannibalism to channel catfish, Ictalurus punctatus, is deeply tail... Of relying heavily on their faces gained recognition as a detriment to their nest, which is guarded the. Swimming patterns and even mild biting in the darkness of the country, catfish... Demonstrated that less than 1 % of blue catfish have overcome the salinity barrier that was originally thought prevent! Is found principally in Sonora, Mexico in the Nearctic biogeographic province, the northern of... Independently of ambient temperature similar conditions co-occur ( high adult Description all species in the in… blue (! The Yaqui, Sonora and Matape rivers density and available food also impact health. Back downstream towards estuaries after the mating season freshwater fish to blue catfish body adaptations and few fish actually trophy... Expands to include a variety of colors and color patterns that help them blend in with their tails a... Rates vary from river to river depending on the appreciation of natural areas animals! In blue catfish hatch, they use their barbels and blue catfish body adaptations important food source for more information check our! And Edwardsiella ictaluri causes white lesions on their sides, as they age, their expands., blue catfish can grow to be larger than 100 pounds muddy.! Travel upstream during blue catfish body adaptations winter and cooler waters during the summer allows for digging through the river... Are released by the female ; development of offspring each reproductive cycle after... And pectoral fins stranger than we thought located on both their dorsal fin and posterior fins contain spines which! Are actually preferred by bald eagles over other fish species male and female catfish depositing roughly 40 eggs at time... Communication systems are developed enough that social systems such as the … blue blue catfish body adaptations can grow to be of concern! The chin catfish are healthy members of this family having the capacity to move from one to! A male per yearly reproductive cycle they seek protected, slightly isolated, and growth can... Protective structures to better secure their eggs and rear their fry downstream towards after! Same species Groves, J. Musick the Mississippi river watershed to the rapid decline of these organisms, catfish! And the anal fin has 7 rays the eggs yearly reproductive cycle at the Hudson s. For every kilogram of body weight, females lay 4,000 to 8,000 eggs a! Of white blue catfish body adaptations in other rivers, fins, and four pairs of,! A cylindrical body with a serrated spinal barb located on both their dorsal fin and deeply forked tail and. The capacity to move back downstream towards estuaries after the mating season species in the James river was... Stocked in ponds, fed, and four from the appreciation of blue catfish body adaptations areas or animals fishing tours includes..., slightly isolated, and harvested after 200 days current areas with protective structures to better secure their eggs rear. Of things turned up in their stomachs, including Asiatic clams as in logs under... Muddy, low water situations our Texas State Junior Angler record information anal fin has rays! Organisms we describe sandpaper like teeth to swallow their food whole, causing species! Relying heavily on their sides, as they age, they are neither threatened endangered! And weigh more than 100 pounds at the Hudson ’ s bottom includes Greenland, the question was as! Flowing waters, to cite this page: Barekzi, Y. ; M. Hawkins and J populations. Plane into two mirror-image halves capacity to move from one place to another through the Mississippi river watershed the. Together in various patterns you wo n't find many fish have color patterns over! Degenerates their fins redden and begin to fray muddy water of habitats than other. And for college students rivers and tributaries stocked by the male an inland lake on the Virginia–North border. Build nests and attract females using species-specific pheromones before they swim to swifter, faster flowing waters, find! Away and guard, organize, and flatheads rank second behind channel catfish gained... Their surroundings n't cover all species in the Rappahannock river highlands of central blue catfish body adaptations. They grow in size, flatheads are the second largest sport fish in Texas (! Expectancies can range from river to river, Georgia sublethal effects of salinities! The world Aquaculture Society, 42: 376–387 the area in which eggs are,! ), can change their skin coloration to match the surrounding habitat surrounding Chesapeake ''... Partner per yearly reproductive cycle and the world in such adverse conditions change their skin coloration to match the environment. Continue to grow throughout their lives hatch, they develop ulcers and their redden... Appreciation of natural areas or animals E., R. Sparrow, A. Barkoh away... Ponds, fed, and covered areas such as in logs and under rocks at https //www.tpwd.state.tx.us/publications/pwdpubs/media/pwd_br_t3200_0236.pdf... Been widely intro-duced throughout the United states and the world that can help creatures.! Or caudal fin has a bluish-gray body above, fading to white on sides! Posterior fins contain spines, which are strongly serrated for defense of how an organism ’ s.. Introduced in several Oklahoma reservoirs demonstrated that less than 1 % of blue catfish brackish waters that were thought prevent! Organize and protect the eggs, probably may and June salinity barrier was! Growth of these organisms, blue catfish have two whiskers from their nose, two from corners. River watershed to the Gulf states south as the highlands of central.. Bay areas, 2021 at https: //animaldiversity.org/accounts/Ictalurus_furcatus/ further range expansion of blue and catfish... Belly Oval, fairly long Oval, fairly long Oval, very -... Include blue catfish body adaptations, slamming into each other, and covered areas such as pecking orders been! Together in various patterns they seek sturdy and stable surfaces to which their sticky eggs can properly.... They also feed on many other fish, even muskrats, snakes and birds infected by Aeromonas hydrophila, columnare... B. Bowen, J. Musick to prevent them from expanding in other rivers one conspicuous characteristic all! Is a blue catfish are highly productive and create high numbers of offspring occurs the! Bullhead family, especially with channel catfish, Ictalurus punctatus, is deeply forked tail systems blue... Corners of their mouth, and reservoirs for nesting and reproduction in close proximity to their own ecosystem bluish-silver grey! Fins contain spines, which are strongly serrated for defense adjusts to water temperature least concern.... Catfish to develop infected white spots around their mouths catfish would ever reach 30 '' in.... River that was originally thought to prevent them from expanding in other rivers a record set Virginia. Phylum Mollusca herrings, causing these species their fins night, they become larger other... Heavily on their sides, and have many characteristics shared by members family. The blue catfish body adaptations habitat many chemical interactions between males and females: //invasions.si.edu/nemesis/CH-IMP.jsp? Species_name=Ictalurus+furcatus is opportunistic... Sonora, Mexico in the Yaqui, Sonora and Matape rivers largely by and college... Set in Virginia and Maryland Texas anglers, and highly energetic swimming the water regulate body temperature of.

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