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The lake trout (Salvelinus namaycush) [2] is a freshwater char living mainly in lakes in northern North America. ... Life history. Lake trout inhabit cold, oxygen ...
Lake trout (Salvelinus namaycush), like brook trout, belong to the char genus. Lake trout inhabit many of the larger lakes in North America, and live much longer than rainbow trout, which have an average maximum lifespan of seven years. Lake trout can live many decades, and can grow to more than 30 kilograms (66 lb).
Their close cousin, the Koi fish, has been known to live up to 200 years in captivity! In its native Japan, the Koi is a good-luck symbol for long life. Lake Trout: Up to 50 years. Also known as ...
The rainbow trout (Oncorhynchus mykiss) is a species of trout native to cold-water tributaries of the Pacific Ocean in North America and Asia. The steelhead (sometimes called steelhead trout) is an anadromous (sea-run) form of the coastal rainbow trout (O. m. irideus) or Columbia River redband trout (O. m. gairdneri) that usually returns to freshwater to spawn after living two to three years ...
Decades of fisheries management programs led to huge improvement in the number of lake trout, which were nearly wiped out in the Great Lakes.
A major threat to the lake whitefish is an invasive parasite species, the sea lamprey. It is one of a number of species (in addition to the lake trout and lake herring) aggressively attacked by sea lamprey. In Lake Michigan the sea lamprey began to decimate indigenous fish populations in the 1930s and 1940s.
Yellow perch are effective at escaping predation seasonally by lake trout and other native fishes during summer, perhaps due to the high thermal tolerance of yellow perch. [4]: 19 Perch are commonly active during the day and inactive at night except during spawning, when they are active both day and night. Perch are most often found in schools.
The Dolly Varden trout (Salvelinus malma) is a species of salmonid ray-finned fish native to cold-water tributaries of the Pacific Ocean in Asia and North America.Despite the name "trout" (which typically refers to freshwater species from the genera Salmo and Oncorhynchus), it belongs to the genus Salvelinus (chars), which includes 51 recognized species, the most prominent being the brook ...