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当前位置: 首页 > 文章 > 东南太平洋智利竹筴鱼渔场及单位捕捞努力量的时空分布 生态学杂志 2011,30 (6) 1142-1146
Position: Home > Articles > Spatiotemporal distribution pattern of Chilean jack mackerel (Trachurus murphyi) fishing grounds and catch yield per unit effort in Southeast Pacific Ocean Chinese Journal of Ecology 2011,30 (6) 1142-1146

东南太平洋智利竹筴鱼渔场及单位捕捞努力量的时空分布

作  者：
张衡;张胜茂
单  位：
中国水产科学研究院东海水产研究所渔业资源遥感信息技术重点开放实验室
关键词：
智利竹筴鱼;渔场;CPUE;东南太平洋
摘  要：
根据2007年3-12月"开富"号拖网渔船在东南太平洋的生产统计数据和卫星遥感反演的海表温度数据,分析了智利竹筴鱼(Trachurus murphyi)的渔获量、网产量的季节变化,并探讨了单位捕捞努力量(CPUE)的时空分布格局及其与水温的关系。结果表明:CPUE在5-8月较高,其他月份相对较低,表现为冬季>秋季>春季>初夏。从全年来看,在海表温度12℃～14℃时,智利竹筴鱼的产量较高,其次为15℃～17℃。秋季渔场纬度分布较高(41°S-46°S);冬季渔场有所北移,分布于34°S-42°S,并向西转移至101°W;春季初期渔场继续西偏,随后向东转移,经度方向变化幅度达29°;初夏渔场有所南撤。总的来说,智利竹筴鱼渔场时空分布具有明显的季节变化,CPUE值波动范围较大。
译  名：
Spatiotemporal distribution pattern of Chilean jack mackerel (Trachurus murphyi) fishing grounds and catch yield per unit effort in Southeast Pacific Ocean
作  者：
ZHANG Heng,ZHANG Sheng-mao (Key Laboratory of Fisheries Resources Remote Sensing and Information Technology Resources,East China Sea Fisheries Research Institute,Chinese Academy of Fish ery Sciences,Shanghai 200090,China)
关键词：
Chilean jack mackerel;fishing ground;per unit catch effort;Southea st Pacific Ocean
摘  要：
Based on the statistical data of Chilean jack mackerel catch yield of "Kai Fu" vessel in March-December 2007 and the related sea surface temperatur e (SST) obtained by satellite remote sensing,this paper analyzed the seasonal c hanges of fish catch and net catch,and approached the relationship between the spatiotemporal distribution pattern of Chilean jack mackerel catch yield per uni t effort (CPUE) and SST.The CPUE was higher in May-August and lower in other m onths,being in the order winter > autumn > spring > early summer.In the whole year,the catch yield of Chilean jack mackerel was higher when the SST was at 12 ℃-14 ℃,followed by at 15 ℃-17 ℃.The fishing grounds were distributed in higher altitudes (41°S-46°S) in autumn,and moved northward (34°S-42°S) a nd w estward to 101°W in winter,continuously westward and then eastward (29° varia tion of longitude) in early spring,and southward in early summer.Overall,in 2 007,there was an obvious seasonal change in the spatiotemporal distribution pat terns of Chilean jack mackerel fishing grounds,and the CPUE value had a larger fluctuation range.

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