GENERAL PATTERNS IN FORMING THE SPATIAL STRUCTURE OF COMMERCIAL SPRING/SUMMER AGGREGATIONS OF ASIAN TOOTHED SMELT OSMERUS MORDAX ON WESTERN KAMCHATKA
https://doi.org/10.15853/2072-8212.2019.55.59-71
Abstract
Results of the research allow to figure out modern boundaries of forming general commercial aggregations of the species in visinity of spawning rivers and in the shelf zone of West Kamchatka. It is demonstrated the dynamics of the regional commercial catches and evaluated stock of toothed smelt for the period of the historical highest stock abundance in the second decade of the ХХI century. The data obtained allow to think of a united system of forming toothed smelt commercial stock on the west coast of Kamchatka, although there are obvious centers of reproduction in the rivers of the West Kamchatka subzone (the Rivers Moroshechnaya, Khairyuzova, Belogolovaya and Kovran) and in the Kamchatka Kurile subzone (the Rivers Bolshaya, Opala and Golygina). Redistribution of stock at the level of particular “local stocks” takes place during the autumn and winter feeding of the fish in the shelf zone of West Kamchatka.
About the Authors
A. V. Bugaev
Kamchatka Branch of Russian Research Institute of Fisheries and Oceanoraphy (“KamchatNIRO”)
Russian Federation
Russian Federation
Yu. N. Amelchenko
Kamchatka Branch of Russian Research Institute of Fisheries and Oceanoraphy (“KamchatNIRO”)
Russian Federation
Russian Federation
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Review
For citations:
Bugaev A.V., Amelchenko Yu.N. GENERAL PATTERNS IN FORMING THE SPATIAL STRUCTURE OF COMMERCIAL SPRING/SUMMER AGGREGATIONS OF ASIAN TOOTHED SMELT OSMERUS MORDAX ON WESTERN KAMCHATKA. The researches of the aquatic biological resources of Kamchatka and the North-West Part of the Pacific Ocean. 2019;(55):59-71. (In Russ.) https://doi.org/10.15853/2072-8212.2019.55.59-71
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