自然资源学报

自然资源学报 ›› 2004, Vol. 19 ›› Issue (5): 591-596.doi: 10.11849/zrzyxb.2004.05.007

• 资源保护与利用 • 上一篇    下一篇

东海区中上层鱼类资源的时空分异

苏奋振1, 张甲2, 杜云艳1, 周成虎1, 邵全琴1   

  1. 1. 中国科学院地理科学与资源研究所,北京100081;
    2. 国家卫星气象中心,北京100101
  • 收稿日期:2004-04-21 修回日期:2004-05-20 出版日期:2004-10-25 发布日期:2004-10-25
  • 作者简介:苏奋振(1972～）男，福建水定人，副研究员，博士，从事海洋海岸带资源环境遥感与GIS研究.E-mail:sufz@Ireis.ac.cn
  • 基金资助:

    国家863项目“大洋渔业与环境信息获取及应用技术”(2001AA630701,2003AA637030);中国海岸带及近海卫星遥感综合应用系统技术项目(2003AA604040)。

Spatiotemporal variations of pelagic fishery resources in East China Sea

SU Fen-zhen1, ZHANG Jia-shen2, DU Yun-yan1, ZHOU Cheng-hu1, SHAO Quan-qing1   

  1. 1. The State Key Lab. of Resources and Environment Information System, Institute of Geographic Sciences and Natural Resources Research, CAS, Beijing 100101, China;
    2. National Satellite Meterological Center, Beijing 100081,China
  • Received:2004-04-21 Revised:2004-05-20 Online:2004-10-25 Published:2004-10-25

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30 | 7

摘要： 根据渔业区划中东海区的地理水文特点,将东海区划分为地理上的3个区域,即黄海中南部、长江口和东海中南部。据1987～1998年东海区上海、宁波、江苏、舟山四大渔业公司中上层鱼类渔捞数据,以渔获量和平均网产为指标,分析了东海区中上层鱼类资源的季节性特性和时空分布特征。最后利用空间趋势面拟合方法,分析东海区中上层鱼类资源的区域分异特征。结果显示,不同海区的中上层鱼类资源大致具有自西南向东北或者自西向东减少的趋势,与该区主要海流相对应。

关键词: 鱼类资源, 时空分异, 趋势面, 东海区, 海洋, 地理信息系统

Abstract: The research area is divided into three sub-areas,i.e.central south area of the Yellow Sea,mouth area of the Changjiang River and central south area of the East China Sea,according to their hydrographical characters.Capture data of pelagic fishes in the research area collected from four major fishery companies were used to analyse the spatiotemporal variations of pelagic fishery resources in this region.The fishing season of central south area of the Yellow Sea lasts from autumn to winter.It is autumn in the mouth area of the Changjiang River and summer in the central south area of the East China Sea.It was found by trend surface analysis that the average annual seine yield,which was taken as an indicator of the fishery resources,showed a general decreasing tendency from west by south to east by north or west to east,depending on different sub-areas.Primary biomass,ocean current and temperature pattern were thought to be mainly responsible for it.

Key words: fishery resources, spatiotemporal variation, trend surface, East China Sea, marine geographic information system