| 东海日本鳀数量分布和生物学特性的研究 |
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| 引用本文： | 薛利建,刘子藩.东海日本鳀数量分布和生物学特性的研究[J].浙江海洋学院学报(自然科学版),2005,24(4):312-317. |
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| 作者姓名： | 薛利建 刘子藩 |
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| 作者单位： | 浙江海洋学院海洋与渔业研究所,浙江省海洋水产研究所,浙江,舟山,316100 |
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| 基金项目： | 浙江省科技厅计划项目（2003C32033） |
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| 摘 要： | 根据2000～2002年在东海海域每年分季度4个航次双拖作业渔业资源调查和2000～2003年鳀鱼监测调查资料。对鳀鱼的数量分布和生物学特征进行了研究。结果表明，调查区鳀鱼的2000～2002年平均双拖网渔获率为0．55kg/h，以2000年冬季最高（2．06kg/h）且分布范围较广，2000秋季最低（0．0008kg/h）且极少有分布；鳀鱼在浙江近海的产卵期为2～5月，3月开始出现补充群体，经周年生长全长可达到约100mm。
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| 关 键 词： | 鳀鱼 数量分布 生物学特性 东海 |
| 文章编号： | 1008-830X（2005）04-0312-06 |
| 收稿时间： | 2005-04-18 |
| 修稿时间： | 2005-04-18 |
Study on the Biomass Distribution & Biological Characteristics of Engraulis japonicus in the East China Sea |
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| XUE Li-jian,LIU Zi-fan.Study on the Biomass Distribution & Biological Characteristics of Engraulis japonicus in the East China Sea[J].Journal of Zhejiang Ocean University(Natural Science Edition),2005,24(4):312-317. |
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| Authors: | XUE Li-jian LIU Zi-fan |
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| Institution: | Marine and Fishery Research Institute of Zhejiang Ocean University, Marine and Fisheries Research Institute of Zhejiang Province, Zhoushan 316100, China |
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| Abstract: | The study on the biomass distribution and the main biological characteristics of Engraulis japonicus in the East China Sea, is based on data from the professional trawling survey in 2000-2002 and routine trawling survey in 2000-2003. The results showed that, in the surveyed areas, the average of catching rate was 0.55 kg/h in 2000-2002.The highest average catch rate 2.06 kg/h in winter of 2000 and dropped to 0.0008 kg/h in autumn of 2000. In offing of Zhejiang, the spawning period appeared from Feb to May. The recruitment population appeared in Mar and its body length can reach 100 mm in the same period of next year. |
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| Keywords: | Engraulis japonicus biomass distribution biological characteristics the East China Sea |
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