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Russian Journal of Marine Biology

, Volume 44, Issue 7, pp 540–548 | Cite as

A Decrease in the Pink Salmon (Oncorhynchus gorbuscha) Abundance in the Sakhalin–Kuril Region under the Effects of Extreme Environmental Factors

  • A. M. KaevEmail author
Article
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Abstract

An analysis of variations in the abundance of pink salmon on Iturup Island and in four areas of the eastern Sakhalin Island coast in 2007–2016 has shown that year-classes of this species become weaker if they are exposed to the effect of typhoons during their embryonic development in rivers (spawning nests) or juvenile feeding in coastal waters (soon after their downstream migration from rivers). The size of the pink salmon runs to these waters in 2017 completely fits the relationships identified for the previous year. These results indicate the decisive role of extreme environmental factors in the formation of the abundance of pink salmon.

Keywords:

pink salmon Sakhalin Island Iturup Island dynamics of catches abundance extreme factors precipitation wind 

Notes

ACKNOWLEDGMENTS

The study was conducted in the framework of the Governmental Assignment (no. 6.9561.2017/8.9) from the Ministry of Education and Science of the Russian Federation.

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Copyright information

© Pleiades Publishing, Ltd. 2018

Authors and Affiliations

  1. 1.Sakhalin Research Institute of Fisheries and OceanographyYuzhno-SakhalinskRussia
  2. 2.Sakhalin State UniversityYuzhno-SakhalinskRussia

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