Abstract
For the purpose of effective management of inland water fisheries cooperative associations, we examined the relationships between exploitation and awareness of anglers for stocking large sized masu salmon (Oncorhynchus masou masou) and amago salmon (O. m. ishikawae) and stocking efforts of fisheries cooperative associations. Results from creel censuses showed a bimodal distribution of angling exploitation indicating that anglers do not equivalently catch fish. Results from questionnaires showed no correlation between years of angling experience and awareness of anglers. Requirement abundance (37.2 fish/angler) calculated from awareness of anglers and the rate of angling exploitation exceeded maximum stocking abundance (20.2 fish /angler) by the fisheries cooperative association., Because we indicated the discrepancy between awareness of anglers and stocking efforts of the fisheries cooperative associations in this study, it is difficult to recommend the continuation of stocking large sized fish to gain satisfaction from anglers. However, supplemental rules such as special fees, bag limit and catch & release may improve the cost effectiveness of stocking large sized salmon.
