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东海区渔业资源变动分析     被引量:35

THE DYNAMIC ANALYSIS ON THE FISHERY STOCKS IN THE EAST CHINA SEA

文献类型:期刊文献

中文题名:东海区渔业资源变动分析

英文题名:THE DYNAMIC ANALYSIS ON THE FISHERY STOCKS IN THE EAST CHINA SEA

作者:柳卫海[1];詹秉义[1]

机构:[1]上海水产大学工程技术学院,湛江海洋大学海渔系200090

年份:1999

卷号:8

期号:1

起止页码:19

中文期刊名:上海水产大学学报

外文期刊名:Journal of Shanghai Fisheries University

收录:CSCD_E2011_2012、CSCD

语种:中文

中文关键词:东海区;渔业资源

外文关键词:East China Sea, fishery resources, maximum sustainable yield

中文摘要:本文通过对1960~1995年东海区三省一市历年渔获产量、捕捞努力量等统计资料分析,结果表明:东海区海洋渔业产量虽然逐年增加,但远落后于同期捕捞努力量的增幅,而CPUE却有逐年下降趋势,这表明资源密度的减少。通过渔获物组成分析,渔业资源利用除了对传统资源利用外,还加强了对中上层色类如鲐,马面,鲳及虾蟹类等低营养级种群利用,捕捞结构发生了变化,此外,运用剩余产量模型分析整个东海区资源MSY约为1.9E+6吨,对应fMSY为2.2~2.7E+6千瓦,这可说明当前投入捕捞努力量过高,应采取措施大力削减渔船至现有的42%左右,降低捕捞努力量以期逐渐恢复资源。

外文摘要:The paper is presented by analyzing on the data of catch, fishing effort and other fishery statistical information. The results show that, although the total yield increases annually, the rate of yield increment is much slower than that of fishing effort incremenet, and especially the CPUE decreases gradually, indicating the poor resource abundance. By analyzing the catch composition, besides the utilization of the traditional fishery resoures, the pelagic fishery resources such as mackerels and scads, harvest fish, filefish, shrimp and crabs etc, and lower trophic level species are also obviously intensified to be exploited. Fishing structure has changed. Furthermore, after surplus production modeling, the MSY is about 1. 9E+ 6 ton, accordingly the fmsy is 2. 2-2- 7E+6 kilowatt. These data illustrate that present fishing effort is great high. In order to restore the marine resources in the East China Sea, measures must be carried out to make the fishing vessels cut by about 58%.

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