Trout (redirected from trouts)

trout: see salmon.

---

trout

Any of several prized game and food fishes of the family Salmonidae, native to the Northern Hemisphere but widely introduced elsewhere. Though most species inhabit cool fresh waters, a few (called sea trout; e.g., cutthroat trout) migrate to the sea between spawnings. Some weakfish are also called sea trout. The genus Oncorhynchus includes salmon and several trout species; Salvelinus contains trout species regarded as chars. Trout species vary greatly in anatomy, colour, and habits. Most live among submerged objects or in riffles and deep pools, eating insects, small fishes and their eggs, and crustaceans. See also brook trout; brown trout; lake trout; rainbow trout.

---

trout

1. any of various game fishes, esp Salmo trutta and related species, mostly of fresh water in northern regions: family Salmonidae (salmon). They resemble salmon but are smaller and spotted

2. any of various similar or related fishes, such as a sea trout

3. Austral any of various fishes of the Salmo or Oncorhynchus genera smaller than the salmon, esp European and American varieties naturalized in Australia

---

trout [′trau̇t]

(vertebrate zoology)

Any of various edible fresh-water fishes in the order Salmoniformes that are generally much smaller than the salmon.

---

Trout 

the name for freshwater fishes of the genera Salmo and Oncorhynchus, family Salmonidae. Trout live in mountain brooks and rivers or in lakes.

The brook, or river, trout usually measures up to 37 cm in length and weighs as much as 800 g, while the lake trout is larger and weighs up to 34 kg. Lake and brook trout are freshwater forms of the salmon trout. They attain sexual maturity in the third or fourth year and spawn in autumn and winter. The females deposit from 250 to several thousand roe on a gravelly bottom. The rainbow trout of North America is a freshwater form of the salmon S. gairdneri. It is more thermophilic than European trout and more resistant to diseases, and it grows more rapidly. Rainbow trout spawn in spring, summer, and autumn.

All trout are valuable commercial fishes and are bred commercially.

REFERENCES

See references under SALMON.