南黄海三种石首鱼类的食性

被引：32

作者：

薛莹

金显仕

张波

梁振林

机构：

[1] 中国水产科学研究院黄海水产研究所

[2] 中国海洋大学水产学院农业部海洋渔业资源可持续利用重点开放实验室

[3] 山东青岛中国海洋大学水产学院

[4] 山东青岛

[5] 农业部海洋渔业资源可持续利用重点开放实验室

[6] 山东青岛

来源：

水产学报 | 2005年 / 02期

关键词：

石首鱼类; 食物组成; 食物重叠; 摄食器官; 南黄海;

D O I：

暂无

中图分类号：

S917 [水产生物学];

学科分类号：

摘要：

根据2000-2002年秋季和冬季在南黄海进行的定点底拖网调查,利用多元统计分析方法,研究了黑鳃梅童(Collichthys niveatus)、皮氏叫姑鱼(Johnius belengerii)和小黄鱼(Pseudosciaena polyactis)的食物组成及其差异,摄食随海区、季节和体长的变化,以及3种石首鱼类摄食器官的形态差异对摄食的影响。结果表明:(1)3 种鱼的优势饵料生物各不相同,食物组成存在显著差异;(2)3种鱼的食物组成均随海区和季节的不同而有显著的差异;(3)3种鱼的食物组成和饵料多样性都有明显体长变化,黑鳃梅童和皮氏叫姑鱼的饵料多样性随体长的增大而升高,小黄鱼则相反;(4)黑鳃梅童和小黄鱼种内不同体长间的食物重叠指数较高,而皮氏叫姑鱼则较低,3种鱼的种间食物重叠指数位于0.50-0.56;(5)主成分分析(PCA)表明,黑鳃梅童和小黄鱼摄食器官的形态特征与皮氏叫姑鱼存在一定的差异。

引用

页码：178 / 187

页数：10

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