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首页> 外文期刊>Indian Journal of Fisheries >Preliminary observations on dominance of crustacean larvae in the diet of little tunny Euthynnus affinis (Cantor, 1849) caught off Chennai and Cuddalore coasts
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Preliminary observations on dominance of crustacean larvae in the diet of little tunny Euthynnus affinis (Cantor, 1849) caught off Chennai and Cuddalore coasts

机译：在金奈和库达洛尔沿岸捕获的小金枪鱼近亲幼食（Cantor，1849年）中甲壳类幼虫的优势的初步观察

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摘要

The food habits of little tunny Euthynnus affinis caught by hooks and line off Chennai and Cuddalore in Tamil Nadu were studied from December 2011 to August 2012. A total of 358 samples were collected from both the centres and gut contents were analysed. Almost 42% of the guts were full and 22% were found to be either quarter full or with traces of food contents. About 35% of the guts were empty. Index of relative importance (IRI) was calculated for the prey items. Crustacean larvae (91%) were dominant among the gut contents, followed by fishes (4%) and molluscs (2%). Among the crustacean larvae, brachyuran megalopae and crablets formed about 45% while the stomatopod alima larvae formed 21%. Phyllosoma larvae of scyllarid lobsters and pueruli larvae of spiny lobsters were also found among the identified crustacean larvae
机译：从2011年12月至2012年8月，对泰米尔纳德邦金奈和库德洛尔被钩子和钓钩钓到的小金枪鱼亲属的食物习性进行了研究。从这两个中心共采集了358份样品，并对肠道成分进行了分析。几乎42％的肠子充满了，而22％的肠子充满了或有少量食物。大约35％的胆量是空的。计算猎物的相对重要性指数（IRI）。甲壳类幼虫（91％）在肠道含量中占主导地位，其次是鱼类（4％）和软体动物（2％）。在甲壳类幼虫中，短臂短bra和蟹形约占45％，而拟真足类幼虫占21％。在已发现的甲壳类幼虫中还发现了鳞茎龙虾的毛状体幼虫和刺龙虾的粉刺性幼虫。

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