This paper had analyzed the structure change of aquaculture outputs between 1978 and 2000 in China via the index of Moore structure change and Aquaculture structure.

The preliminary study on the structure regulation of marine fishery yield in Liaoning province;

In recent years, the extreme meteorological disaster caused the serious losses to the marine fishery production.

In the light of the present situation of and problems existing in the fishery production of Linfen City, this paper advances some countermeasures for developing the fishery in Linfen City.

The thesis bases on the sbep investigation on the nature, sociaty and technology in JiaYin county, detects the factors related fishery production by means of computer, raise the main problans set that affect the development of fishery in JiaYin County, and predicts the production of fishery in next 20 years.

In this paper,we believed to establish the fishery property rights institution based on ITQs is an effective way to solve this problem.

Though different methods may have been taken to solve the problem by different countries,clearly defined and effectively enforced fishery property rights are regarded as one of the most efficient institutional arrangements by most.

Though different met hods may have been taken to solve the problem by different countries,clearly de fined and effectively enforced fishery property rights are regarded as one of th e most efficient institutional arrangements.