1. Graduate School of Informatics Kyoto University Kyoto Japan
2. Field Science Education and Research Center Kyoto University Kyoto Japan
3. Institute of Environmental Radioactivity Fukushima University Fukushima Japan
4. Graduate School of Agriculture Kyoto University Kyoto Japan
5. Graduate School of Global Environmental Studies Kyoto University Kyoto Japan
6. Fukushima Prefectural Fisheries and Marine Science Research Centre Iwaki Japan
7. Fukushima Prefectural Inland Water Fisheries Experimental Station Inawashiro Japan
8. Fishery Division of the Fukushima Prefectural Government Fukushima Japan
9. Fukushima Prefectural Research Institute of Fisheries Resources Soma Japan
10. Soma Branch, Fishery Office of the Fukushima Prefectural Government Soma Japan
11. National Institute of Polar Research Tachikawa Japan
12. National Fisheries University Shimonoseki Japan