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.
Chub
A robust, thick-shouldered cyprinid of European rivers, the chub is a wary predator-scavenger that lurks under banks and cover, feeding on anything from insects to small fish.
freshwater
Creek Chub
A stout, adaptable minnow common in small North American creeks, the creek chub is a dominant predator in headwater streams, feeding on insects and small fish, and known for building spawning nest mounds.
freshwater
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
Mummichog
A stout, hardy killifish common in salt marshes and estuaries along the North American Atlantic coast, well known for its extreme tolerance of changing salinity and oxygen levels.
brackish
Chum Salmon
A large, widely distributed Pacific salmon known for the bold calico-patterned stripes and blotches that spawning adults develop along their flanks.
freshwater
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.
pelagic
Dog Salmon Herring
Despite the name, this is the chum salmon, nicknamed 'dog salmon' for its prominent canine-like spawning teeth — a true Pacific salmon, not a herring.
saltwater