文章摘要
陈佳杰,徐兆礼,陈雪忠.我国沿海小黄鱼渔场的空间格局[J].水产学报,2010,34(2):236~244
我国沿海小黄鱼渔场的空间格局
The spatial distribution pattern of fishing ground for small yellow croaker in China Seas
投稿时间:2009-03-06  修订日期:2009-08-14
DOI:10.3724/SP.J.1231.2010.06371
中文关键词: 小黄鱼  渔场产量  东海  黄海  渤海
英文关键词: Larimichthys polyactis  fishing ground yield  the East China Sea  the Yellow Sea  the Bohai Sea
基金项目:我国近海海洋综合评价项目(908-02-01-03);国家自然科学基金重大研究计划(90511005)
作者单位E-mail
陈佳杰 中国水产科学研究院东海水产研究所 chen_jiajie37@yahoo.com.cn 
徐兆礼 中国水产科学研究院东海水产研究所  
陈雪忠 中国水产科学研究院东海水产研究所  
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中文摘要:
      根据1971-1982年渤、黄、东海的渔业捕捞统计资料,描述了该时期小黄鱼渔场空间变化、不同渔场的产量的年间变化,并与近年来小黄鱼渔场的资料做了比较,对小黄鱼的空间分布、渔场变化和各渔场的重要性进行探讨。结果表明,我国小黄鱼渔场可分为3类,即春季产卵场渔场,主要位于长江口及江浙沿海;夏季索饵场渔场,主要位于黄海南部和东海北部近海;冬季越冬场渔场,主要集中在黄海中南部外海和东海北部外海。1974年后渤海区小黄鱼产量明显下降,自1979年后东海小黄鱼产量明显上升,并且超过了黄海区的产量。在本文所统计的水域范围内,不同渔场小黄鱼贡献率分布格局显示出两种模式:冬夏(12、1-2月和7-9月)季模式,渔场位置稳定,鱼群密集,产量集中,其中冬季主要位于黄海南部外海和东海北部外海,夏季主要位于黄海南部近海和东海北部近海,这些水域往往是专门捕捞小黄鱼的优质渔场;另一种是春秋季(3-6月和10-11月)模式,以洄游过路鱼群为主要渔获对象,鱼群相对分散,在这些水域,小黄鱼往往是兼捕对象。1971-1982年小黄鱼鱼群的分布与近年来分布格局类似。
英文摘要:
      The paper discusses the spatial variation of the small yellow croaker (Larimichthys polyactis) fishing ground annual changes in production and the dominance of fisheries according to the capture production of fishing in the Bohai Sea, Yellow Sea and East China Sea from 1971 to 1982. We also compared the locations of historical fishing grounds with the present locations and time, and we explored the spatial variation and the changes in fisheries. The results shows that there are three types of small yellow croaker fishing grounds, that is the spring spawning grounds which were mainly located in coastal waters, summer feeding grounds which were concentrated on the south of Yellow Sea and the north of East China Sea, and the wintering grounds which were concentrated on the central and southern offshore of Yellow Sea and northern nearshore of the East China Sea. The capture production of small yellow croaker in Bohai Sea had declined significantly since 1974 and the capture production in East China Sea was dominant since 1979. In addition, two kinds of distribution patterns of small yellow croaker were found. One is winter summer (Dec, Jan.-Feb. & Jul.-Sept.) pattern, composed of high quality small yellow croaker fishing grounds for the stable locations located in the central and southern offshore of Yellow Sea and northern offshore of the East China Sea in winter and in the southern nearshore of Yellow Sea and the East China Sea in summer, intensive fish and concentrated production. The other is spring autumn (Mar.-Jun. & Oct.-Nov.) pattern, which was characterized by the low capture production for the small yellow croaker in the migratory period and it was not the predominant target species for capture. The spatial distribution pattern fishing grounds for small yellow croaker in 1971-1982 resemble the current, but it has important reference value to research on small yellow croaker in the characteristics of fishing grounds, fishing season and the contribution of fish distribution pattern mode.
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