Fish Identifier

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.

all freshwater saltwater reef pelagic cartilaginous deepsea brackish

Lake Trout

A large, deep-lake char native to cold northern North American waters, marked by pale spots on a dark greenish-gray body and a deeply forked tail. It typically inhabits the coldest, deepest zones of large lakes.

Ohrid Trout

The Ohrid Trout is a salmonid endemic to Lake Ohrid on the border of North Macedonia and Albania, found nowhere else on Earth and now critically endangered in the wild.

Sea Trout

Sea Trout is the migratory, sea-run form of the brown trout, spending its adult life feeding along European coastlines before returning to rivers to spawn.

Marble Trout

Marble trout are a large, distinctively patterned native trout of the Balkan Peninsula, named for the marbled, olive-and-brown pattern covering their body, and are now considered vulnerable due to hybridization with introduced brown trout.

Cutthroat Trout

Cutthroat Trout

A native western North American trout named for the distinctive red-orange slash marks under its jaw, found in an array of subspecies across cold streams and mountain lakes.

Brook Trout

A colorful char native to cold, clear streams of eastern North America, marked by worm-like back markings and red spots haloed in blue along its sides. It is highly sensitive to water quality and temperature.

Brown Trout

A golden-brown salmonid native to Europe and western Asia, marked by dark and reddish spots along its body, now widely introduced across the globe. It favors cool, clear rivers, streams, and lakes.

Splake

Splake are a fertile hybrid char produced by crossing brook trout and lake trout, combining the fast growth of brook trout with the longevity and deep-water habits of lake trout.

Lake Sturgeon

The lake sturgeon is a large, armored, long-lived freshwater fish native to the Great Lakes and Mississippi basin, recognizable by its bony scute rows and shovel-shaped snout.

Tiger Trout

Tiger trout are a sterile hybrid between brown trout and brook trout, prized by anglers for their striking maze-like markings and aggressive feeding habits.

Rainbow Trout

A popular salmonid native to Pacific-drainage rivers of North America and Asia, known for its silvery body, dark spotting, and the broad pink-red stripe that gives the species its name.

Golden Trout

One of the most brilliantly colored freshwater fish in North America, native to a small area of high-elevation streams in California's Sierra Nevada, marked with vivid golden-orange flanks and crimson stripes.

Gila Trout

The Gila trout is a rare golden-hued native trout restricted to a handful of remote headwater streams in New Mexico and Arizona, and remains one of North America's most range-limited trout species.

Bull Trout

A large, cold-water char native to the Pacific Northwest and Rocky Mountains, requiring exceptionally cold, clean streams and listed as threatened across much of its range in the United States.

Apache Trout

The Apache trout is a golden-yellow native trout found only in the high-elevation streams of Arizona's White Mountains, and it is the state fish of Arizona following decades of conservation recovery efforts.

Miller Lake Lamprey

The Miller Lake lamprey is a tiny, non-parasitic jawless fish historically restricted to a single lake and its tributary streams in Oregon, one of the smallest lamprey species known.

Lake Wanam Rainbowfish

Lake Wanam Rainbowfish

A deep-bodied rainbowfish endemic to the small crater Lake Wanam in Papua New Guinea, with males showing rich orange-red body coloration.

Sand Seatrout

A pale, slender weakfish common in Gulf of Mexico bays and estuaries, closely related to spotted seatrout but lacking body spots.

Weakfish

The Weakfish is an iridescent greenish-bronze sciaenid with diagonal spotted markings, found in mid-Atlantic estuaries and coastal waters of the U.S.

Steelhead

The anadromous, sea-run form of rainbow trout, prized by anglers for its powerful runs and acrobatic leaps after migrating between rivers and the Pacific Ocean.

Cisco

Cisco, also known as lake herring, are slender silvery relatives of whitefish that form large open-water schools in the cold lakes of the northern United States and Canada, feeding mainly on plankton.

Leopard Coral Grouper

Leopard Coral Grouper

A striking Indo-Pacific reef predator with a reddish-orange body densely covered in small electric-blue spots, giving it a leopard-like pattern.

Lane Snapper

A small, silvery-pink schooling snapper marked by faint yellow stripes and a black spot near the tail base, common across shallow Western Atlantic reefs and seagrass.

Kokanee Salmon

Kokanee are a landlocked, non-migratory form of sockeye salmon that spend their entire life in freshwater lakes, turning bright red during their autumn spawning run into tributary streams.