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对法国Douarnenez海湾拟庸鲽Pleuronectes platessa L.的食性进行了研究。依据一些常见的饵料指标,多毛类动物和双壳类动物为拟庸鲽的主要饵料;饵料双壳类动物贝壳厚度上限随着捕食鱼类的增长而提高。对拟庸鲽种内营养关系的对应分析表明,基本饵料的刚性和易捕性与捕食鱼类的体长关系密切;同时也揭示,某些鱼类食性综合指标并非总是有效的。
Feeding habits of Pleuronectes platessa L. in Douarnenez Bay, France were studied. According to some common food targets, polychaete and bivalve are the main bait for quirky bait; bait bivalve shell thickness limit increases with the growth of predatory fish. The corresponding analysis of the relationship between the inner nutrients and the quasi-nycticarrows showed that the rigidity and predisposition of the basic food were closely related to the body length of the predatory fish. It also revealed that some of the forage synthetic indicators were not always effective.