types:
catfish,
siluriform fish
any of numerous mostly freshwater bottom-living fishes of Eurasia and North America with barbels like whiskers around the mouth
eel
voracious snakelike marine or freshwater fishes with smooth slimy usually scaleless skin and having a continuous vertical fin but no ventral fins
clupeid,
clupeid fish
any of numerous soft-finned schooling food fishes of shallow waters of northern seas
anchovy
small herring-like plankton-eating fishes often canned whole or as paste; abundant in tropical waters worldwide
salmonid
soft-finned fishes of cold and temperate waters
whitefish
silvery herring-like freshwater food fish of cold lakes of the northern hemisphere
smelt
small trout-like silvery marine or freshwater food fishes of cold northern waters
argentine
any of various small silver-scaled salmon-like marine fishes
lanternfish
small fish having rows of luminous organs along each side; some surface at night
greeneye
bottom-dwellers having large eyes with metallic green luster
ribbonfish
marine fish having a long compressed ribbonlike body
loach
slender freshwater fishes of Eurasia and Africa resembling catfishes
cyprinid,
cyprinid fish
soft-finned mainly freshwater fishes typically having toothless jaws and cycloid scales
catostomid
a cypriniform fish of the family Catostomidae
silurid,
silurid fish
Old World freshwater catfishes having naked skin and a long anal fin more or less merged with the eellike caudal fin
armored catfish
South American catfish having the body covered with bony plates
sea catfish
any of numerous marine fishes most of which are mouthbreeders; not used for food
cod,
codfish
major food fish of Arctic and cold-temperate waters
hake
any of several marine food fishes related to cod
Molva molva,
ling
elongated marine food fish of Greenland and northern Europe; often salted and dried
common eel,
freshwater eel
eels that live in fresh water as adults but return to sea to spawn; found in Europe and America; marketed both fresh and smoked
moray,
moray eel
family of brightly colored voracious eels of warm coastal waters; generally nonaggressive to humans but larger species are dangerous if provoked
conger,
conger eel
large dark-colored scaleless marine eel found in temperate and tropical coastal waters; some used for food
shad
herring-like food fishes that migrate from the sea to fresh water to spawn
sardine
any of various small edible herring or related food fishes frequently canned
salmon
any of various large food and game fishes of northern waters; usually migrate from salt to fresh water to spawn
trout
any of various game and food fishes of cool fresh waters mostly smaller than typical salmons
char,
charr
any of several small trout-like fish of the genus Salvelinus
capelan,
capelin,
caplin
very small northern fish; forage for sea birds and marine mammals and other fishes