| 黄海海州湾小黄鱼幼鱼的食性及其随体长的变化 |
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| 引用本文： | 郭斌,张波,金显仕.黄海海州湾小黄鱼幼鱼的食性及其随体长的变化[J].中国水产科学,2010,17(2):289-297. |
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| 作者姓名： | 郭斌 张波 金显仕 |
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| 作者单位： | 1. 农业部海洋渔业资源可持续利用重点开放实验室,山东省渔业资源与生态环境重点实验室,中国水产科学研究院,黄海水产研究所,山东,青岛,266071;上海海洋大学,海洋科学学院,上海,201306
2. 农业部海洋渔业资源可持续利用重点开放实验室,山东省渔业资源与生态环境重点实验室,中国水产科学研究院,黄海水产研究所,山东,青岛,266071 |
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| 基金项目： | 国家863计划课题，国家重点研究发展规划项目，国家自然科学基金资助项目 |
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| 摘 要： | 根据2008年7月和8月在黄海海州湾海域进行的定点底拖网调查,应用K-W非参数秩检验、卡平方检验和聚类分析等方法,对小黄鱼(Pseudosciaena polyactis)幼鱼(体长20～110mm)的食物组成及其与体长之间的关系进行研究。结果表明,小黄鱼幼鱼摄食的饵料种类有30余种,甲壳类(桡足类、糠虾类和虾类)是主要的饵料类群,在食物中所占的个数百分比为99.50%。优势饵料有真刺唇角水蚤(Labidocera euchaeta)、长额刺糠虾(Acanthomysis longirostris)和细螯虾(Leptochela gracilis)。小黄鱼幼鱼的摄食强度和食物组成随体长的增长都有明显的变化,随着体长的增加,食物中虾类和鱼类的比例有所增加,而桡足类和糠虾类的比例则减少。饵料生境宽度在体长大于80mm后有明显的增加。聚类分析的结果表明,小黄鱼幼鱼在体长达到80mm时,出现了明显的食物转换现象。可以认为,小黄鱼幼鱼食性的转变与其体长密切相关。
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| 关 键 词： | 小黄鱼 食物组成 摄食习性 体长 |
| 修稿时间： | 2010/3/30 0:00:00 |
Diet composition and ontogenetic variation in feeding habits of juvenile small yellow croaker Pseudosciaena polyactis Bleeker in the Yellow Sea |
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| GUO Bin,ZHANG Bo,JIN Xianshi.Diet composition and ontogenetic variation in feeding habits of juvenile small yellow croaker Pseudosciaena polyactis Bleeker in the Yellow Sea[J].Journal of Fishery Sciences of China,2010,17(2):289-297. |
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| Authors: | GUO Bin ZHANG Bo JIN Xianshi |
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| Affiliation: | GUO Bin 1,2,ZHANG Bo 1,JIN Xianshi 1 (1.Key Laboratory for Sustainable Utilization of Marine Fishery Resources,Ministry of Agriculture,Sh,ong Provincial Key Laboratory of Fishery Resources , Eco-environment,Yellow Sea Fisheries Research Institute,Chinese Academy of Fishery Sciences,Qingdao 266071,China,2.College of Ocean,Shanghai Ocean University,Shanghai 201306,China) |
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| Abstract: | Small yellow croaker,Pseudosciaena polyactis Bleeker,is a commercilally important bottom fish distributing from the northern East China Sea to the Bohai Sea,and plays an important role in the marine ecosystems. In recent years,although the stock has showed recovering,the catches were mainly composed of juveniles,and characterized by lower age population structure.In spite of its high abundance and importance to fisheries,only limited information is available on its feeding ecology in juvenile stage of small... |
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| Keywords: | Pseudosciaena polyactis diet composition feeding habits ontogenetic variation |
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