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The brown bullhead may be distinguished from flathead catfish (Pylodictis olivaris) by the absence of lateral posterior extensions on the tooth patch of the brown bullhead's upper jaw. [5] [10] Adult brown bullheads range in size from 200 to 500 mm (7.9 to 19.7 in) and weigh between 0.5 kg (1.1 lb) and 3.6 kg (7.9 lb) (in extreme cases). [8]
Younger hardhead catfish tend to eat small crustaceans, like amphipods, shrimp, blue crabs, mollusks, and annelids. [10] Juveniles that are still under the protection of the male mouthbrooder feed predominately on planktonic crustaceans close by to the mouth of the parent. [8] The adults primarily consume larger fish. [10]
Catfish (or catfishes; order Siluriformes / s ɪ ˈ lj ʊər ɪ f ɔːr m iː z / or Nematognathi) are a diverse group of ray-finned fish.Named for their prominent barbels, which resemble a cat's whiskers, catfish range in size and behavior from the three largest species alive, the Mekong giant catfish from Southeast Asia, the wels catfish of Eurasia, and the piraíba of South America, to ...
Adult channel catfish, over 45 centimetres (18 in), prey on fishes such as yellow perch and sunfish. The diet of adults consists of snails, clams, crustaceans (such as crayfish), snakes, frogs, small fish, insects, aquatic plants, algae, seeds, grains, nuts, and occasionally even small birds and small mammals. Younger channel catfish are more ...
On average each female flathead lays a clutch of roughly 100,000 eggs. The role of the male catfish in fanning the clutch is to provide oxygen to the eggs through the use of his fins. The spawning of these catfish occurs when the temperature reaches roughly 66 to 75 °F (19 to 24 °C) and the flow of the stream or river becomes steady.
Few other catfish have such large second dorsal fins (adipose fins) or such long barbels as do the vundu. Its barbels nearly reach to the origin of the pelvic fin. The colour of Heterobranchus longifilis is light to dark olive brown on its dorsal surface, getting lighter over the mid-body to a light brown. Its belly is off-white.
The wels catfish (/ ˈ w ɛ l s / or / ˈ v ɛ l s /; Silurus glanis), also called sheatfish or just wels, [2] is a large species of catfish native to wide areas of central, southern, and eastern Europe, in the basins of the Baltic, Black and Caspian Seas.
Fish over about 100 mm also eat small fish while adults include shrimps, crayfish in the warmer months and midge larvae in winter. In addition, they eat mollusks and dragonfly, caddis and mayfly larvae. [7] The eel-tailed catfish is host for a number of intestinal parasites including cestodes and nematodes. [8]