Abstract:
Technical activities are reviewed in a regional stock enhancement project for red sea bream off Kanagawa prefecture. The project is aimed at recovering from the decline of catches, which fell from 136 ton in the late 1960s to the 30-ton level in the late 1970s. Current major activities aim :(i) to select a marking technique; (ii) to estimate annual catches, both commercial and sport; (iii) to evaluate the effects of stock enhancement on catch, both artificial and wild as well as on achievement of economic efficiency. Further problems suggested here are in relation to the benefit principle on the seed restocking concerned from the legal viewpoint.