Comparative Food Habits of Two Minnow Species: Blacknose Dace, Rhinichthys atratulus and Longnose Dace, Rhinichthys cataractae
Comparative Food Habits of Two Minnow Species: Blacknose Dace, Rhinichthys atratulus and Longnose Dace, Rhinichthys cataractae
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两种米诺鱼的食性比较：黑鼻鲮、白鼻鲮和长鼻鲮、白鼻鲮
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发表时间：
1982
期刊：
影响因子：
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通讯作者：
G. Dale
中科院分区：
文献类型：
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作者：
Antonios Pappantoniou;G. Dale
摘要采集自美国纽约州威彻斯特县Waccabuc河的长鼻鲮鱼和黑鼻鲮鱼。胃含量分析表明，这两种鱼的食性相似，均以水心纲幼虫为主。重叠计算表明，与同一物种的不同标本相比，在一起发现的两个物种之间的饮食相似性更大，这表明饮食更多地是时间和/或地点采集标本的函数，而不是物种身份的函数。
ABSTRACT Longnose dace and blacknose dace were collected from the Waccabuc River in Westchester County, N.Y. Stomach content analysis revealed that the diets of the two species were similar and dominated by hydropsychid larvae. Overlap calculations showed there was greater similarity in diet between the two species where they were found together than between different collections of the same species, indicating that diet was more a function of when and/or where specimens were collected than of species identity.