1. Shiga Prefectural Samegai Trout Farm
2. Department of Fisheries, Faculty of Agriculture, Kinki University
3. Fisheries Laboratory of Kinki University
4. Department of Marine Bioscience, Fukui Prefectural University
5. Nanae Fish Culture Experimental Station, Faculty of Fisheries, Hokkaido University
6. Department of Aquatic Bioscience, Graduate School of Agricultural and Life Sciences, The University of Tokyo
7. School of Fisheries Sciences, Kitasato University
8. Faculty of Medicine, Teikyo University
9. National Institute ofr Basic Biology