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.
Banded Rudderfish
A western Atlantic jack whose boldly banded juveniles shelter beneath floating debris, later maturing into plainer, olive-silvery adults resembling small amberjacks.
saltwater
Greater Amberjack
A large, torpedo-shaped jack with a bronze-amber stripe running through the eye, commonly found around offshore reefs and wrecks worldwide.
reef
Bluefin Trevally
A vividly colored reef jack covered in electric-blue spots, with matching blue fins, patrolling coral reefs across the Indo-Pacific.
reef
Japanese Amberjack
The Japanese Amberjack, or yellowtail, is a streamlined pelagic jack from the northwestern Pacific, identified by its bright yellow lateral stripe and yellow-tinged fins.
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
Amberjack
A powerful, deep-bodied jack that patrols reefs and wrecks worldwide in warm seas, known for its stubborn fighting strength and amber-tinted flanks.
reef
Threadfin Trevally
An Indo-Pacific jack whose juveniles trail extraordinarily long thread-like fins, maturing into deep-bodied, steep-headed adults over sandy coastal bottoms and reef edges.
reef
Island Trevally
The Island Trevally is a deep-bodied jack found around Indo-Pacific reefs, recognized by faint yellow-orange spots scattered along its silvery flanks and a forked yellow tail.
reef
Yellowtail Amberjack
A powerful, streamlined jack marked by a bold yellow lateral stripe and yellow tail, roaming temperate and subtropical waters worldwide around reefs, wrecks, and open water.
pelagic
Lesser Amberjack
A small, deep-dwelling jack of the western Atlantic, distinguished from its larger amberjack relatives by its modest size and life around offshore reefs and wrecks.
saltwater
Leerfish
A powerful surf-zone predator of the eastern Atlantic and Mediterranean, known as garrick in South Africa and unique among jacks for its smooth, scute-free lateral line.
pelagic
Northern Pike
A long, torpedo-shaped ambush predator with a duck-bill-like snout and light bean-shaped markings, famous for lurking motionless in weeds before striking prey with explosive speed.
freshwater
High-hat
A striking black-and-white striped reef drum related to the jackknife-fish, easily recognized by its tall, elongated dorsal fin.
reef