Grooved tanner crab Chionoecetes tanneri in the north-western Bering Sea: criteria for choosing the optimal fishing measure
https://doi.org/10.26428/1606-9919-2023-203-75-85
Abstract
Spatial and bathymetric distribution and aggregation density is considered for bathyal crabs, including the grooved tanner crab <i>Chionoecetes tanneri</i>, on the data of specialized deep-water trap survey and two bottom trawl surveys within the depth range of 300‒1080 m conducted by TINRO in the northwestern Bering Sea in 2019–2020. The size of grooved tanner crab is determined as 9.0–17.0 cm for the morphometrically mature males and 6.5–15.5 cm for the morphometrically immature males, by carapace width. The size of 50 % morphometric maturity is evaluated for males of <i>Ch. Tanneri</i> in the northwestern Bering Sea. A new fishing measure is substantiated for this population taking into account its size composition.
Keywords
Supporting agencies: The study was organized in accordance with the thematic plan of TINRO for 2019–2022 and funded by a government contract.
About the Authors
A. G. Slizkin
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Aleksey G. Slizkin, Ph. D., leading researcher
4, Shevchenko Alley, Vladivostok, 690091
O. Yu. Borilko
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Oleg Yu. Borilko, head of sector
4, Shevchenko Alley, Vladivostok, 690091
A. N. Deminov
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Andrey N. Deminov, chief specialist
4, Shevchenko Alley, Vladivostok, 690091
I. A. Korneychuk
Pacific branch of VNIRO (TINRO)
Russian Federation
Russian Federation
Ilya A. Korneychuk, chief specialist
4, Shevchenko Alley, Vladivostok, 690091
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For citations:
Slizkin A.G., Borilko O.Yu., Deminov A.N., Korneychuk I.A. Grooved tanner crab Chionoecetes tanneri in the north-western Bering Sea: criteria for choosing the optimal fishing measure. Izvestiya TINRO. 2023;203(1):75-85. (In Russ.) https://doi.org/10.26428/1606-9919-2023-203-75-85
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