Impacts of marine fishery on marine ecosystem and the management discussion

Since there are more and more attentions to impacts of marine fishery on ecosystem,ecosystem-based management has became the the development trend.This paper analyzes the impacts of marine fishery,including: harm to target and non-target,destroying of habitat and environment and reduction of bio-diversity.It also analyzes the law framework,practice of international organizations and countries and some measures,and pointes out the problems in these aspects of China: lack of systematic and overall basic science research;lack of theory study on ecosystem approach;imperfection of law framework.Meanwhile,it also discusses the relation between fishery management based on ecosystem approach and traditional marine fishery management,and considers that there would be some problems in the practice,and the application of ecosystem approach should be selectively applied.Finally,some suggestions are put forward:(1) enhance the basic research of marine ecosystem;(2) devlop theory and means research of ecosystem-based fishery management;(3) work out relevant law and system framework;(4) develop wide cooperation of different relevant sectors and international cooperation.