| 摘要: |
| 胶州湾是我囻黄海南部对虾的重要产卵场之一,每年4月中国对虾(Penaeus chinensis)亲体陆续进人胶州湾,进行产卵活动。繁殖的幼对虾生长迅速,至8月下旬虾群平均体长可达13cm左右,成为秋汛渔业的重要捕捞对象。近年由于捕捞力量加强等诸多因素,湾内对虾的年渔获量由70年代的2-5t,减至80年代的1-2t。虽然1984年以来有关部门实施对虾增殖放流,对虾资源量有所回升,但是因春季洄游的亲体(雌虾)数量锐减,7-8月间又使用各种网具违捕幼虾,因而极大地损害了幼虾资源。刘瑞玉等(1992)曾调查研究了胶州湾对虾生物资源。本文根据作者1991年以来5月和8月的对虾拖网调査资料,对胶州湾对虾资源的生态分布及其变动原因进行了分析研究,对加强管理和保护幼虾资源,以及提高对虾产量有极其重要的意义。 |
| 关键词: 胶州湾、中国对虾 |
| DOI： |
| 分类号: |
| 基金项目:中国科学院海洋研究所调查研究报告第2614号 |
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| ECOLOGICAL CHARACTERISTICS OF PENAEUS CHNENSIS RESOURCES IN JIAOZHOU BAY |
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Wu Yaoquan, Zhang Baolin, Sun Daoyuan
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Institute of Oceanology,Chinese Academy of Sciences
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| Abstract: |
| Trawling surveys showed that the young Penaeus chinensis Shrimp in Jiaozhou Bay were congregated during July-august in its western part.
August 1981-August 1994 water temperature, salinity, nutrient salt showed no distinctive changes in the ecological environment of Jiaozhou Bay.Where the decreasing number of young shrimp which is largely due to the enhanced catch capability that decreased parent shrimp density to 15-20 ind/k㎡, and other anthropogenic factors adversely larva and young shrimp growth, all of which have caused the average annual catch to be 14-335 ind/h only. |
| Key words: Penaeus chinensis,Jiaozhou Bay |
