North Pacific Anadromous Fish Commission

Technical Report 17

Table of Contents

Dynamics on Distribution, Production, and Biological Interactions of Pacific Salmon in the Changing Climate of the North Pacific Ocean

Authors: 
Masahide Kaeriyama

Abstract Excerpt:
The global warming effect for the distribution of chum salmon based on the IPCC AR4 SRES-A1B scenario was already predicted (Kaeriyama 2008), and it was clarified that Japanese chum salmon were positively affected in the 1990s (Kaeriyama et al. 2012, 2014) and negatively influenced since the mid-2000s by global warming (Kaeriyama and Urabe 2018; Kaeriyama 2019). Global warming will have significant impacts on the distribution and migration of Pacific salmon in the North Pacific in this century. The objective of this paper is to evaluate the global warming effect on distribution, production, and inter- and intra-specific interactions of Pacific salmon in order to establish sustainable salmon conservation management. The COBE-SST database of the Japan Meteorological Agency was used to evaluate the SST in the North Pacific Ocean and Arctic Sea, the stable isotope analysis for evaluating the trophic level of Pacific salmon, and the Lotka-Volterra equations for evaluating the inter- and intra-specific interactions among pink, sockeye, and chum salmon. I also defined optimal (OGT) and allowable growth temperatures (AGT) of chum salmon as 8–12°C and 5–7°C, respectively (Kaeriyama 2004; Kaeriyama and Urabe 2018).

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DOI:
https://doi.org/10.23849/npafctr17/102.106.

Citation

Kaeriyama, M.  2021.  Dynamics on distribution, production, and biological interactions of Pacific salmon in the changing climate of the North Pacific Ocean.  N. Pac. Anadr. Fish Comm. Tech. Rep. 17: 102–106.  https://doi.org/10.23849/npafctr17/102.106.