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.
Cero Mackerel
A slender, fast-swimming mackerel of Caribbean and western Atlantic waters, identified by a bronze-yellow stripe and rows of yellow-orange spots along its silvery sides.
pelagic
Atlantic Mackerel
A fast-swimming schooling fish with iridescent blue-green wavy stripes across its back, found in cold and temperate waters on both sides of the North Atlantic.
pelagic
Bigeye Scad Sardine
Often mistaken for a true sardine because of its silvery, schooling habits, the bigeye scad is actually a jack recognizable by its unusually large eyes.
pelagic
Spanish Mackerel
A slender, fast-swimming mackerel of the western Atlantic, easily identified by rows of bright yellow-gold spots scattered along its silvery flanks.
pelagic
Pacific Mackerel
A schooling pelagic fish of the eastern Pacific with an iridescent blue-green back marked by irregular dark bars and scattered spots along its lower flanks.
pelagicJack Mackerel
A slender, schooling temperate-water jack found off southern Australia and New Zealand, identifiable by its bony lateral scutes and vital role as forage for larger ocean predators.
pelagic
King Mackerel
A large, streamlined mackerel of the warm western Atlantic, prized as a fast offshore game fish and recognizable by its silvery, unmarked body.
pelagic
Frigate Mackerel
A small tuna-like fish with a distinctive dark, wavy tiger-stripe pattern on its upper back, found in warm oceanic waters worldwide.
pelagic
Chub Mackerel
A widespread schooling mackerel found in temperate and subtropical seas worldwide, marked by irregular dark bars on its back and faint spots along its lower flanks.
pelagic
Pacific Jack Mackerel
A silvery, schooling open-water fish of the eastern Pacific, marked by a full ridge of bony scutes along its sides and an ecologically vital role as forage for larger predators.
pelagic
Narrow-barred Spanish Mackerel
A large, fast-swimming mackerel of the Indo-Pacific marked by numerous narrow, wavy dark bars running down its silvery sides.
pelagic
Spotted Scat
A deep-bodied, disc-shaped fish covered in dark spots over an olive-to-silver background, common in Indo-Pacific estuaries and harbors. Its bold pattern and spiny dorsal fin make it easy to pick out among schooling brackish fish.
brackish
Pacific Saury
A slender, silvery, beaked schooling fish of the temperate North Pacific, closely related to needlefish, marked by a row of small finlets near its tail.
pelagic
Silver Scat
A disc-shaped, silvery fish marked with dark vertical bars, found schooling in brackish estuaries and mangroves across the Indo-Pacific and northern Australia.
brackish
Green Scat
A green-toned color variant of the Spotted Scat, with the same deep, disc-shaped body but a more uniform olive-green wash and lighter spotting. Found in the same brackish estuaries and harbors across the Indo-Pacific.
brackish
Kawakawa
A compact, fast schooling tuna of the Indo-Pacific with a wavy dark pattern on its back and several distinctive dark spots between the pectoral and pelvic fins.
pelagic
Atlantic Bonito
A streamlined, fast-swimming relative of tuna and mackerel, marked by dark oblique stripes running across its steel-blue back.
pelagic
Salmon Shark
A powerful, warm-bodied mackerel shark closely related to the Porbeagle, built for speed in the cold North Pacific and named for its preference for salmon.
pelagic
Bonito
A fast, streamlined relative of the tunas and mackerels, marked by bold dark diagonal stripes across its upper back, found in schools across temperate and warm seas.
pelagic
Little Tunny
A speedy, hard-fighting mackerel relative marked by distinctive wavy dark markings on its back, found in warm coastal and offshore waters of the Atlantic and Mediterranean.
pelagic