山东省环渤海区域主要鱼类资源变化的研究

Changes in Main Fish Stocks in Bohai Sea around Shandong Province

根据1996—2012年山东省海洋捕捞数据,进行了山东省环渤海区域主要鱼类资源捕捞量变化研究,分析了蓝点马鲛、带鱼、鳀鱼、鲐鱼4个主要优势种的资源年间变化,并讨论了变化原因与管理政策。研究表明,1996年以来山东环渤海区域鱼类的捕捞总产量持续增长,而到2007年后产量明显下降;主要鱼种渔获物结构较为稳定,但逐渐趋于多元化;由于多年的过度开发和利用,鱼、带鱼、银鲳衰退明显;蓝点马鲛的捕获量较为稳定;而鳀鱼经过多年的大规模开发,2006年以后出现了严重衰退。

The changes in 10 common species of fish resources were analyzed in the Bohai Sea around Shan- dong province based on the data （1996--2012） of marine capture productions in Shandong province, and the reason of the changes and the policy guarantee measures were discussed. The capture production in the Bohai Sea around Shandong province has been increased since 1996, and declined significantly since 2007, with steady and diversified structure in fish stock. The stocks of soiuy Liza haematocheila, pomfret Pam- pus argenteus and hairtail Trichiurus lepturus were declined notably due to excessive exploitation of ma- rine living resources. Along with development of marine management, stock of Japanese spanish mackerel Scomberomorus niphonius was stable, and anchovy Engraulis japonicas had been in severe recession since 2006 because of many year development in a large scale.