Biological Accessment

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For salmon produced by the artificial propagation in Japan, we collect the following biological data and compile them as the Salmon Database: rearing records of salmon from egg collection to release in hatcheries, ecological and environmental data for juvenile salmon during the coastal residency, ecological aspects of returning adult salmon in coastal waters, salmon fishery catches in coastal waters and rivers, genetic characteristics of salmon populations. These data are widely utilized as basic information for the international management of salmon resources, prompt reports of salmon fishery, and coastal environmental reports during the release  season  of salmon.

Biological Acceessment/Termal mark on an otolith
Thermal mark on an otolith

Biological Asseccment

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