Results of otolith marking of chum salmon Oncorhynchus keta for testing efficiency of their artificial reproduction
https://doi.org/10.26428/1606-9919-2023-203-1009-1019
EDN: QSTLVO
Abstract
Otoliths from 3473 chum salmon spawners caught at the mouth of Naiba River and at Bereznyakovsky and Sokolovsky salmon hatcheries in 2013–2019 are investigated. Almost all of the chum adults caught at the hatcheries were marked at one of them and obviously migrated toward the point where they were released being the fry. Moreover, the most of chum spawners caught at the mouth of Naiba River also had the mark of either Bereznyakovsky or Sokolovsky hatchery, which definitely contributed a significant portion of the total stock of chum salmon in Dolinsky district of Sakhalin region.
Supporting agencies: The authors are grateful to S.V. Sidorova, the head of aquaculture department of Sakhalin-Kuril Territorial Administration of the Federal Fisheries Agency, for providing the data on annual catch of chum salmon in Dolinsky district.
About the Authors
A. A. Vorozhtsova
Sakhalin branch of Glavrybvod
Russian Federation
Russian Federation
Alexandra A. Vorozhtsova, head of laboratory
43B, Emelyanov Str., Yuzhno-Sakhalinsk 693006
M. S. Miakishev
Sakhalin branch of Glavrybvod
Russian Federation
Russian Federation
Maxim S. Miakishev, head of department
43B, Emelyanov Str., Yuzhno-Sakhalinsk 693006
O. V. Zelennikov
St. Petersburg State University
Russian Federation
Russian Federation
Oleg V. Zelennikov, D.Biol., assistant professor
7/9, Universitetskaya Emb., St. Petersburg 199034
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For citations:
Vorozhtsova A.A., Miakishev M.S., Zelennikov O.V. Results of otolith marking of chum salmon Oncorhynchus keta for testing efficiency of their artificial reproduction. Izvestiya TINRO. 2023;203(4):1009-1019. (In Russ.) https://doi.org/10.26428/1606-9919-2023-203-1009-1019. EDN: QSTLVO
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