| 摘要: |
| 以2005—2006 年江苏省帆式张网渔获资料为基础, 分析研究了黄海南部黄鲫资源的时空分布、群体组成结构以及产卵群体生物学特征。结果表明, 黄海南部黄鲫主要利用渔期为春季3—5月、冬季1 月或12 月。春季高产渔区主要分布在大沙渔场的西南部和吕泗渔场的东部, 冬季和秋季高产渔区相对靠近或较春季高产渔区偏东。黄鲫高产渔区的分布无明显季节变化特征。黄鲫渔获群体主要由体长70—110mm、体重0—15g 的个体组成, 产卵群体的平均体重范围为8.7—12.0g。与1981—2000 年的研究结果相比, 黄鲫个体小型化越趋显著, 当前利用个体偏小。
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| 关键词: 黄鲫, 黄海南部, 帆式张网, 时空分布, 生物学特性 |
| DOI：10.11693/hyhz200904017017 |
| 分类号: |
| 基金项目:农业部“东海区渔业资源调查与监测”研究专项; 国家科技支撑计划项目, 2007BAD43B01 号 |
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| RESOURCE ESTIMATE ON SETIPINNA TATY IN THE SOUTHERN YELLOW SEA |
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XIONG Ying1, TANG Jian-Hua1, LIU Pei-Ting1, ZHONG Xia-Ming1, YAN Li-Ping2, GAO Yin-Sheng1, WU Lei1, MAO Hong1
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1.Marine Fisheries Research Institute of Jiangsu Province;2.East China Sea Fisheries Research Institute, Chinese Academy of Fisheries Sciences
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| Abstract: |
| Using the stow net catchery data of Jiangsu Province from 2005 to 2006 in the southern Yellow Sea, temporal and spatial distribution, and community structure of Setipinna taty and its broodstock biological characteristics were analyzed. The results indicate that the major fishing seasons of S. taty were the spring from March to May and the winter during January or December. The areas of high yield during the spring were mainly in the area southwest of Dasha Fishing Ground and the eastern of Lü si Fishing Ground. During the winter and the autumn, the high yields areas located eastward off those of the spring. The high yields areas did not change apparently in season. The community of S. taty was mainly those in body length from 70 to 110mm and body weight from 0 to 15g. The mean body weight of broodstock fish ranged from 8.7 to 12.0g. Compared to the results from previous studies conducted during 1981—2000, the body size of S. taty continuously decreased, also, the fish currently fished are apparently smaller than those previously caught.
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| Key words: Setipinna taty, The southern Yellow Sea, Stow net, Temporal and spatial distribution, Biological characteristics |
