Fish Encyclopedia
Search and identify 1,000+ fish species — freshwater, saltwater, reef, and pelagic — with habitat, size, diet, behavior, and how to tell them apart.
American Brook Lamprey
The American brook lamprey is a small, non-parasitic freshwater lamprey found in clean streams across eastern North America, closely related to the Arctic lamprey but never feeding once it reaches adulthood.
freshwater
Cherry Salmon
The cherry salmon is a Pacific salmon native to East Asia that exists in two forms: a smaller freshwater-resident form called yamame and a larger, silvery sea-run form, both named for the pink cherry-blossom hue of spawning fish.
freshwater
Smallmouth Bass
A bronze-green freshwater bass native to eastern North America, prized as a popular sport fish and recognized by its vertical dark bars and reddish eyes. It favors clear, rocky rivers, streams, and lakes.
freshwater
Senegal Bichir
An elongated, primitive-looking freshwater fish with a row of small spiny finlets along its back and paired lung-like breathing organs, retaining features from ancient ray-finned fish ancestors.
freshwater
Chinese High-Fin Banded Shark
Despite its name, the Chinese High-Fin Banded Shark is not a shark at all but a large freshwater sucker native to China's Yangtze River basin, known for its tall sail-like dorsal fin.
freshwater
Yellow Perch
A golden-yellow freshwater fish marked by dark vertical bars and orange-tinged fins, native to lakes and slow-moving rivers across North America. It is one of the most abundant and widely recognized panfish species.
freshwater
Bala Shark
A torpedo-shaped, silver freshwater fish named for its shark-like body outline, though it is a true minnow relative, not a shark. Bold black margins on its fins make it a striking, fast-swimming schooler of Southeast Asian rivers.
freshwater
Koran Angelfish
A large Indo-Pacific angelfish whose adults show a blue-green body scattered with pearly blue spots and lines, while striking juveniles display concentric blue and white circular bands.
reefTiger Muskie
A hybrid of northern pike and muskellunge, this elongated apex predator sports bold dark tiger stripes and is prized as one of freshwater's most aggressive game fish.
freshwater
California Sheephead
A large sequential-hermaphrodite wrasse of California and Baja kelp forests, with males showing a striking black-and-red pattern and prominent canine teeth used to crush hard-shelled prey.
reef
Leopard Shark
A slender, boldly patterned houndshark common in shallow California bays, easily recognized by its dark saddle-like blotches and spots.
cartilaginous
Rock Wrasse
A common temperate wrasse of California and Baja kelp forests, recognized by its elongated olive-green body, salmon-pink belly, and a dark saddle-like blotch near the tail.
saltwater