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首页> 外文期刊>Mediterranean Marine Science >The diet and feeding ecology of Conger conger (L. 1758) in the deep waters of the Eastern Ionian Sea
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The diet and feeding ecology of Conger conger (L. 1758) in the deep waters of the Eastern Ionian Sea

机译:东爱奥尼亚海深水区的康格康吉(L. 1758)的饮食和喂养生态

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The diet of the European conger eel Conger conger was investigated for the first time in the Eastern Mediterranean. Fish dominated the European conger eel diet in the deep waters of E. Ionian Sea. All other prey taxa were identified as accidental preys. However, intestine analysis showed that Natantia, Brachyura and Cephalopoda might have a more important contribution in the diet of the species. C. conger exhibited a benthopelagic feeding behavior as it preyed upon both demersal and mesopelagic taxa. The high vacuity index and the low stomach and intestine fullness indicated that the feeding intensity of the species in the deep waters of Eastern Ionian Sea was quite low. C. conger feeding strategy was characterised by specialisation in various resource items. A between-phenotype contribution to niche width was observed for some prey categories. European Conger eel feeding specialisation seemed to be an adaptation to a food-scarce environment, as typified in deep-water habitats
机译:欧洲海鳗鳗的饮食第一次在地中海东部进行了调查。在欧洲爱奥尼亚海深水区,鱼类占据了欧洲鳗鱼的主要食物。所有其他猎物类群都被识别为意外猎物。但是,肠道分析表明,Nantania,Brachyura和Cephalopoda可能在该物种的饮食中具有更重要的作用。 C. conger表现出海底鱼类的进食行为,因为它捕食了海底和中弹性分类群。高真空指数和低肠胃饱满度表明该物种在爱奥尼亚海东部深水区的摄食强度很低。 C. conger饲养策略的特点是专门研究各种资源项目。在某些猎物类别中,表型间对生态位宽度的贡献被观察到。欧洲Conger鳗鱼饲养专业化似乎是对食物稀缺环境的适应,如深水生境

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