North Pacific Anadromous Fish Commission

Technical Report 15

Table of Contents

Timing of Spawning of Wild Chum Salmon in a Non-enhanced River and their Seaward Migration in Northern Honshu, Japan

Authors:
Masaya Iida, Yuta Yagi, and Tomoaki Iseki

Abstract Excerpt:
Chum salmon (Oncorhynchus keta) have a wide geographic distribution around the northern Pacific Rim, with northern Honshu Island, Japan being located at the southernmost limit of their distribution (Salo 1991). Information on the ecology of wild chum salmon is needed for their sustainable management in Japan, as it enables the development and application of effective conservation measures (Miyakoshi et al. 2012; Nagata et al. 2012). Wild fish in this paper are considered to be fish that have reproduced naturally for more than one generation, regardless of parental origin (hatchery fish or wild fish) (Morita and Ohkuma 2015). We investigated the timing of spawning of wild chum salmon in a non-enhanced river and their seaward migration in the northern Honshu, Japan.

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DOI:
https://doi.org/10.23849/npafctr15/49.50.

Citation

Iida, M., Y. Yagi, and T. Iseki.  2019.  Timing of spawning of wild chum salmon in a non-enhanced river and their seaward migration in northern Honshu, Japan.  N. Pac. Anadr. Fish Comm. Tech. Rep. 15: 49–50.  https://doi.org/10.23849/npafctr15/49.50.