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Position: Home > Articles > Surveys and analysis of marine fishery resources and ecological environment in Liaodong Bay Journal of Dalian Ocean University 2013,28 (2) 211-216

辽东湾渔业资源及生态环境的调查分析

作  者:
高音;刘明勇;汤勇;李九奇;邢彬彬
单  位:
大连海洋大学航海与船舶工程学院;大连海洋大学海洋科技与环境学院;辽宁省东港市渔政管理站;辽宁省海洋牧场工程技术研究中心
关键词:
渔业资源;生态环境;海洋调查;辽东湾
摘  要:
根据2007年8月-2010年10月对辽东湾海域渔业资源和生态环境的底拖网调查数据,分析了该海域环境与渔业资源的状况.结果表明:辽东湾西部海域中的pH、活性磷酸盐等基本符合国家二类海水水质标准,溶解氧符合四类海水水质标准;秋季辽东湾渔业资源种类共计42种,其中鱼类17种,优势种为六丝矛尾鰕虎鱼、斑尾复鰕虎鱼和窄体舌鳎,无脊椎动物25种,优势种为口虾蛄、海星和葛氏长臂虾;生物量密度(BED)较高的海域大多位于近岸水域,近岸水域的生物栖息密度(NED)也高于远岸水域,该海域不能形成渔汛.鉴于目前辽东湾渔业资源的情况,提出了加强限制沿岸污水排入、合理进行放流增殖、规范作业网具和杜绝过度捕捞等改善海洋生态环境和恢复海洋渔业资源的具体措施.
译  名:
Surveys and analysis of marine fishery resources and ecological environment in Liaodong Bay
摘  要:
According to the survey data gained from May in 2007 to October in 2010,the status of marine fishery resources and ecological environment of Liaodong Bay were analyzed.The results showed that the main water quality parameters including pH,and available phosphate,etc.in the western part of Liaodong Bay met requirements for the second level of "Sea Water Quality Standard(GB3097-1997)",that DO just reached the 4th level,that 42 species(including 17 fish species and 25 invertebrates) were found in Autumn,that the dominant species were Amblychaeturichthys hexanema,Synechogobius ommaturus,Cynoglossus gracilis,Oratosquilla oratoria,Asteroidea,and Palaemon gravieri and that the near-shore area was with higher the biomass of ecological density(BED) and the number of ecological density(NED) compared with the far-shore area.Considering the current status of fishery resources in Liaodong Bay,the authors put forward recommendations to improve ecological environment and to rebuild fisheries: to control sewage discharge strictly,to release and enhance fish stocks reasonably,and to make further restrictive measures on fishing activity and fishing gears.

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