North Pacific Anadromous Fish Commission

Technical Report 15

Table of Contents

Unprecedented Far East Salmon Catches in 2018: What Should We Expect in Future?

Authors:
Andrey S. Krovnin, Nataliya V. Klovach, and Kirill K. Kivva

Abstract Excerpt:
The analysis of catch statistics of Far East salmons for more than 100-year period (1911–2018) has revealed some features of their long-term variations, characterized by the 55–70 year-cycle (Klyashtorin and Lyubushin 2007). It was also found that periods of high abundance and biomass of salmon stocks coincided with the warming in the Northern Hemisphere in 1916–1945 and 1982–2013. However, the climatic reasons of warming in the North Pacific for these two periods were different (Krovnin et al. 2016, 2018). The growth of the Far East salmon stocks in 1916–1945 was associated with warming of surface water in the eastern ocean which extended westward along the Aleutian Islands to the coast of Kamchatka and the eastern Sea of Okhotsk. The second period of high biomass and, respectively, catches of the Far East salmons coincided with a sharp warming of surface water in the western and central North Pacific.

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DOI:
https://doi.org/10.23849/npafctr15/7.12.

Citation

Krovnin, A.S., N.V. Klovach, and K.K. Kivva.  2019.  Unprecedented Far East salmon catches in 2018: what should we expect in future?  N. Pac. Anadr. Fish Comm. Tech. Rep. 15: 7–12.  https://doi.org/10.23849/npafctr15/7.12.