North Pacific Anadromous Fish Commission

Technical Report 15

Table of Contents

Long-term Shifts of Chum Salmon (Oncorhynchus keta) Distribution in the North Pacific and the Arctic Ocean in Summer 1982–2017

Authors:
Tomonori Azumaya and Shigehiko Urawa

Abstract Excerpt:
Chum salmon (Oncorhynchus keta) is widely distributed in the North Pacific Ocean and adjacent waters. The thermal limit of chum salmon habitats is between 2.7°C to 15.6°C (Azumaya et al. 2007). Azumaya et al. (2007), Kaeriyama (2008) and Kaeriyama et al. (2012, 2014) predicted a northward shift and decrease of the distribution area of chum salmon as a result of global warming. There is possible shift in the distribution area of chum salmon with recent warming of SST already. However, it is not clear how the distribution area of chum has changed from the past to the present. Thus, we examined the interannual change in the distribution area of chum salmon in the North Pacific and the Arctic Ocean from 1982 to 2017.

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DOI:
https://doi.org/10.23849/npafctr15/132.133.

Citation

Azumaya, T., and S. Urawa.  2019.  Long-term shifts of chum salmon (Oncorhynchus keta) distribution in the North Pacific and the Arctic Ocean in Summer 1982–2017.  N. Pac. Anadr. Fish Comm. Tech. Rep. 15: 132–133.  https://doi.org/10.23849/npafctr15/132.133.