Results of Identification of Sockeye Salmon (Oncorhynchus nerka) Secondary Local Stocks and Secondary Groups of Local Stocks in the Coastal and River Catches of Kamchatka River for 1978-2001

摘要

Sockeye salmon from the early run, spawning in the upper and middle tributaries of the Kamchatka River (Fig. 1), almost totally migrate to the sea in the year of their emergence from the gravel as underyearlings of 35-45 mm in length ("C" group). Juvenile sockeye salmon of the late run inhabiting this region feed in the vicinity of spawning grounds and migrate to the sea at age 1+ ("B" group). General sockeye salmon stock, spawning in the tributaries of the middle and low reaches of the Kamchatka River, migrates (as underyearlings) to the Azabachye Lake for feeding, situated in the low reaches of Kamchatka River ("E" group); a small number of underyearlings from this area migrates to Nerpichye Lake ("N" group) for feeding.