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首页> 外文期刊>Southeastern naturalist >Life History Traits of the Mirror Shiner, Notropis spectrunculus, in Western North Carolina
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Life History Traits of the Mirror Shiner, Notropis spectrunculus, in Western North Carolina

机译：北卡罗来纳州西部的镜面，（Notropis spectrunculus）的生活史特征

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We investigated the life history of Notropis spectrunculus (Mirror Shiner) at 4 locations in the Tennessee River drainage in western North Carolina that we sampled monthly over 7 months. Specimens were collected by seining and examined to identify age, growth, reproductive patterns, and feeding habits. Sexual maturity occurred at approximately 1 year of age. Spawning occurred from April to July with 13-331 mature oocytes (mean = 115.53, SD = 75.36), and male breeding coloration was present in specimens collected in May, June, and July. Gut contents consisted mainly of insect fragments, primarily Coleoptera and Diptera. Fish were found to inhabit water 0.5-0.75 m deep with sandy substrate, directly below flow-disrupting objects.
机译：我们调查了北卡罗来纳州西部田纳西河排水系统中4个地点的Notropis spectrunculus（Mirror Shiner）的生活史，我们每月进行7个月的抽样调查。围捕收集标本，并检查其年龄，生长，生殖方式和喂养习惯。性成熟发生在大约1岁。 4月至7月产卵，成熟卵母细胞为13-331个（平均值= 115.53，SD = 75.36），5月，6月和7月收集的标本中存在雄性繁殖色。肠内容物主要由昆虫碎片组成，主要是鞘翅目和双翅目。发现鱼栖息在水流深处的正下方，水深0.5-0.75 m，带有沙质底物。

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