Muksun (Coregonus muksun) is a large semi-passable fish of the whitefish genus. Body length up to 70 cm (rarely up to 1 m), weight up to 8-9 kg, usually up to 2 kg. The mouth is semi-lower, gill stamens 44-72. Fattens in the sponges in brackish water and lower reaches of rivers. For spawning it rises into rivers. Sexual maturity is reached in the 6th-12th year of life. Spawning is not annual; it hatches 29-93 thousand eggs in October-November at water temperatures below 4°C on rocky-pebble ground. Young fish feed on zooplankton, while adult fish feed on marine cockroaches, chironomid larvae, mollusks, and sometimes small fish. Commercial fish of the lower reaches of the Lena, Ob and Yenisei.

Found in Primorsky Krai: rivers that flow into the Ussuri River in the upper reaches. In Siberian rivers, desalinated bays of the Arctic Ocean, and lakes on the Taimyr Peninsula. It is most abundant in the Ob-Irtysh basin, where catches exceeded 1.5 thousand tons. The muksun inhabits only the territory of Russia; the muksun is not found in the USA and Canada. The lake form lives in Lake Taymyr.

Muksun is considered a valuable commercial fish, a delicacy. Muksun meat is very tender and fatty, almost without intermuscular bones. The muksun is especially good in low-salted form. Fresh muksun only needs to be salted for an hour and a half.

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