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首页> 外文期刊>Aquatic Ecology >First results of a study of the feeding habits of Synodontis comoensis (Siluriformes: Mochokidae) in a West African river (Comoé River, Comoé National Park, C?te d’Ivoire)
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First results of a study of the feeding habits of Synodontis comoensis (Siluriformes: Mochokidae) in a West African river (Comoé River, Comoé National Park, C?te d’Ivoire)

机译：研究西非河（科特迪瓦科莫国家公园，科莫河，科摩罗河）上的滑齿滑鼠（Siluriformes：Mochokidae）摄食习惯的初步结果

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摘要

The feeding habits of Synodontis comoensis (Siluriformes, Mochokidae) have been studied for the first time. Specimens caught in the Comoé River (Comoé National Park, C?te d’Ivoire) had fed on different types of food including insects (Diptera, Ephemeroptera, Hymenoptera, and Isoptera), molluscs (gastropods and bivalves), oligochaetes, and macrophytes. The food items most frequently found in the stomach contents were chironomid larvae, oligochaetes, vegetable detritus, fruit, and gastropods. Correlation studies based on the index of preponderance of food items revealed noticeable variation in S. comoensis diet composition with fish size and season. Preferred food items of young fish were oligochaetes in the rainy season and vegetable detritus in the dry season. Food items preferred by larger fish were fruit and gastropods in the rainy season and chironomid larvae in the dry season.
机译：首次研究了滑齿滑鼠（Siluriformes，Mochokidae）的摄食习惯。捕获在科莫河（科特迪瓦科莫国家公园）中的标本以不同类型的食物为食，包括昆虫（双翅目，E翅目，膜翅目和等翅目），软体动物（腹足纲和双壳纲），寡纲动物和大型植物。在胃内容物中最常发现的食物是chi虫幼虫，寡毛类，蔬菜碎屑，水果和腹足动物。基于食品优势指数的相关性研究表明，comoensis饮食组成随鱼的大小和季节而显着变化。幼鱼的首选食物是雨季的寡头鱼类和旱季的蔬菜碎屑。大鱼偏爱的食物是雨季的水果和腹足类动物，而旱季的则是幼虫。

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