Broad whitefish
The broad whitefish (Coregonus nasus) is a freshwater whitefish species. Dark silvery in colour, and like a herring in its shape. Its distinctive features includes: a convex head, short gill rakers, and a mild overbite. It is found in the Arctic-draining streams, lakes, and rivers of far eastern Russia and North America. Its prey includes larval insects, snails, and shellfish. It is eaten by humans and brown bears. Description The broad whitefish is a herring-shaped fish with a more compressed body and convex head than other whitefishes. It is iridescent, with a dark olive-brown back, silvery grey sides, and a whitish bottom. Features that distinguish it from other species include a mild overbite and 18–25 short gill rakers. The fins of adults are grey, while those of young fish are grey. It reaches a maximum length of , and a maximum weight of . Distribution and habitat The broad whitefish is found in Arctic-draining basins in northern Eurasia and North America from the Pechora River to the Perry River. Most commonly inhabiting streams, it is also found in lakes and estuaries with a salinity of less than 15 percent. Fish from freshwater populations sometimes migrate to or through ocean waters,