Reproductive conditions of walleye pollock Theragra chalcogramma (Gadidae) off the northeastern coast of Sakhalin Island, Sea of Okhotsk
- Authors: Tok K.S.1, Mukhametov I.N.1, Zavarzin D.S.1, Chastikov V.N.1, Latkovskaya E.M.1, Tskhai Z.R.1, Korneev E.S.1, Koreneva T.G.1
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Affiliations:
- Sakhalin Research Institute of Fishery and Oceanography
- Issue: Vol 57, No 6 (2017)
- Pages: 893-907
- Section: Article
- URL: https://journal-vniispk.ru/0032-9452/article/view/167229
- DOI: https://doi.org/10.1134/S003294521706008X
- ID: 167229
Cite item
Abstract
The spatial distribution of eggs and larvae of the walleye pollock Theragra chalcogramma is considered in respect to dynamics of oceanologic processes, nutrients, chlorophyll а and zooplankton off the northeastern coast of Sakhalin Island in spring 2012. It is shown that the effect of severe temperature regime in the near-bottom horizons in the western Sea of Okhotsk during the spawning period of walleye pollock becomes milder due to specific features of water dynamics. The egg distribution is determined by mesoscale eddies in the region. The species survival depends on the effect of such environmental factors as freshwater discharge from the Amur River, eddy structure in waters of the Sea of Okhotsk, and dynamics of phytoplankton and zooplankton development.
About the authors
Kim Sen Tok
Sakhalin Research Institute of Fishery and Oceanography
Author for correspondence.
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
I. N. Mukhametov
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
D. S. Zavarzin
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
V. N. Chastikov
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
E. M. Latkovskaya
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
Zh. R. Tskhai
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
E. S. Korneev
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
T. G. Koreneva
Sakhalin Research Institute of Fishery and Oceanography
Email: n.kim@sakhniro.ru
Russian Federation, Yuzhno-Sakhalinsk, 693023
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