North Pacific Anadromous Fish Commission

Technical Report 17

Table of Contents

Research and Development of a Supporting Information System for Optimization of Salmon Release Operations and Monitoring the Coastal Environment on the Okhotsk Coast, Japan

Authors: 
Sei-Ichi Saitoh, Yasuyuki Miyakoshi, Fumihiro Takahashi, Takafumi Hirata, Irene D. Alabia, Takashi Hosokawa, and Tatsuya Miyoshi

Abstract Excerpt:
Chum salmon (Oncorhynchus keta) is one of the important fishery resources in the North Pacific. Recently, under a changing climate, the return of chum salmon in Hokkaido has begun to decrease. More precise juvenile release operations are required for adapting to climatic changes, including warming sea temperature, and this can be accomplished by modifying the sea entry condition. It is necessary for this precise operation to predict the coastal marine environment in the release period and monitor short-term changes in coastal residency. Miyakoshi et al. (2007) applied satellite sea surface temperature data to compare the release timing of hatchery-reared juvenile chum salmon to spring coastal sea surface temperature during high and low survival periods. They demonstrated that satellite remote sensing and GIS (Geographic Information System) techniques are useful to identify optimum release timing for favorable coastal survival of chum salmon. The main objective of this study is to develop a supporting information system with WebGIS for optimization of salmon release operations and monitoring the coastal environment in the Okhotsk coast, Japan.

*This is the first paragraph of an extended abstract. Download the full abstract below.

DOI:
https://doi.org/10.23849/npafctr17/154.156.

Citation

Saitoh, S., Y. Miyakoshi, F. Takahashi, T. Hirata, I.D. Alabia, T. Hosokawa, and T. Miyoshi.  2021.  Research and development of a supporting information system for optimization of salmon release operations and monitoring the coastal environment on the Okhotsk Coast, Japan.  N. Pac. Anadr. Fish Comm. Tech. Rep. 17: 154–156.  https://doi.org/10.23849/npafctr17/154.156.