A study of the marine aquaculture and management technology of fishing grounds
1999
Kumatani, M. (Mie Univ., Tsu (Japan). Faculty of Bioresources) | Hasegawa, K.
The purpose of this paper is to show the history of the management technology of marine aquaculture and the present problems of management technology. We have dealt with the Yellow-Tail aquaculture, the Sea-Bream aquaculture, the Kuruma-Prawn aquaculture and Oyster aquaculture. The following results were obtained: (1) There were no new fishing grounds; (2) the fishing production exceeds the market demand; (3) senescence of fishing grounds are going on; (4) Total production of the marine aquaculture in Japan has become stable over the last 5 years; (5) Now, only such phenomenon as the red tide low oxygen mass is not the cause of a large depletion in the marine aquaculture. The environmental problems of the fishing grounds were simple in 1960-1970's. The main existing management technology were to change fishing grounds and feed. However, now the environmental problems of the fishing grounds has become complicated. Also, the existing management technology can not solve the problem of survival rate, etc. After this, fishery associations need a framework for environmental risk management to reduce environmental impact from aquaculture systems
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