Recently, the number of leisure fishers has increased in Japan. Recreational anglers have caught larger numbers of fishes than commercial fishermen in some species. Formulating an appropriate management strategy that considers recreational and commercial sectors is important. Sockeye salmon (Oncorhynchus nerka) has been caught in Lake Toya, Hokkaido, Japan, by...
Unfortunately, most of the stocks are damaged by natural disasters or human activities and rebuilding the
stock are urgent requirements. Until now, in the stock management, some policies are commonly believed
to valid but have not been confirmed. A simulation model of the population dynamics incorporating
uncertainty has been already...
Fisheries resource is a great natural asset to this planet and ensuring the responsible use of these resources can enrich the lives of its people. However, global fishery resources are under high and mounting pressure which is severe, particularly in the developing countries. Until recently, traditional fisheries management has failed...