| 舟山沿岸定置张网作业休渔前后鱼类组成分析 |
| |
| 引用本文： | 张龙,徐汉祥,王甲刚,郭海成.舟山沿岸定置张网作业休渔前后鱼类组成分析[J].浙江海洋学院学报(自然科学版),2011,30(1):1-8. |
| |
| 作者姓名： | 张龙 徐汉祥 王甲刚 郭海成 |
| |
| 作者单位： | 1. 浙江海洋学院,浙江舟山,316004
2. 浙江海洋学院,浙江舟山,316004;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 |
| |
| 摘 要： | 根据2007-2009年舟山沿岸定置张网作业渔业资源调查资料,对休渔前后(5月和9月)张网作业渔获物组成进行比较分析。结果表明:休渔前(5月)优势种为鳀鱼、矛尾鰕虎鱼、带鱼、银鲳和黄鲫,其渔获重量占总渔获重量的96.2%;休渔后(9月)以龙头鱼、带鱼、黄鲫和小黄鱼为优势种,其渔获量占总渔获量的77.6%。5月平均每网每天共损害带鱼、小黄鱼和银鲳幼鱼1 030尾,9月平均每网每天损害带鱼、小黄鱼和银鲳幼鱼587尾,比5月减少75.5%。舟山近岸张网休渔后(9月)主要经济种类渔获个体和重量均较休渔前(5月)有大幅增加,通过3个月的休渔,对经济种类的资源养护确实有一定效果,但是渔获个体仍然较小,大多数个体仍然没有达到开捕规格,建议定置张网休渔可以向前推移1个月。
|
| 关 键 词： | 舟山沿岸 张网 伏季休渔 渔获物组成 |
Composition of Set-Net Catch Before and After Fishing Off Season in Zhoushan Coast Areas |
| |
| ZHANG Long,XU Han-xiang,WANG Jia-gang,et al.Composition of Set-Net Catch Before and After Fishing Off Season in Zhoushan Coast Areas[J].Journal of Zhejiang Ocean University(Natural Science Edition),2011,30(1):1-8. |
| |
| Authors: | ZHANG Long XU Han-xiang WANG Jia-gang |
| |
| Institution: | ZHANG Long1,XU Han-xiang1,2,WANG Jia-gang1,et al(1.Zhejiang Ocean University,Zhoushan 316004,2.Marine and Fishery Research Institute of Zhejiang Ocean University,Marine Fisheries Research Institute of Zhejiang Province,Zhoushan 316100,China) |
| |
| Abstract: | Based on survey date before and after Fishing Off Season(May and September) in Zhoushan coast between 2007 and 2009.The results showed that: In May,the main fish species was Engraulis japonicus,Chaeturichthys stigmatias,Trichiurus japonicus,Pampus argenteus and Setipinna taty,the weight of these species occupied 96.2% in total catch weight;in September,the main fish species was H.nehereus,T.japonicus,Larimichthys polyactis,S.taty,the weight occupied 77.6% of total catch weight,on May per stow net were damag... |
| |
| Keywords: | Zhoushan coast areas set net before and after Fishing Off Season composition of catch |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
|
