LIFE HISTORY AND ECOLOGY OF
LIFE HISTORY AND ECOLOGY OF
复制标题
生活史和生态学
DOI：
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发表时间：
1985
期刊：
影响因子：
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通讯作者：
C. Schmitt
中科院分区：
文献类型：
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作者：
Michael D. Hatch;W. H. Baltosser;C. Schmitt
对新墨西哥州佩科斯河（从圣罗莎到卡尔斯巴德北部地区）的钝鼻鳅（Notropis simus pecosensis）进行了调查。在其历史范围内评估了该物种的状况，并对其生活史和生态学的各个方面进行了调查。在过去 40 年中，该物种的分布和丰度似乎有所下降，因为其大部分栖息地会定期脱水。钝鼻闪光鹬出现在从萨姆纳堡到阿蒂西亚的佩科斯河中。最常与 N. s. 相关的鱼类。 Pecosensis 包括 Hybognathus placitus、Hybopsis aestivalis、Notropis Jemezanus、N. lutrensis 和 N. stramineus。钝鼻鳅的产卵期似乎较长，其繁殖力与其他鳖鳅类相似。由于当地地下水渗漏，目前的繁殖仅限于佩科斯河的两个常年河段。该物种在这两个地区最为丰富，并且最常在具有沙质基质、低速层流且深度在 17 至 41 厘米之间的主河道生境中采集。钝鼻鳅（Notropis simus，Cope）的数量已经减少
Surveys were conducted for the bluntnose shiner (Notropis simus pecosensis) in the Pecos River of New Mexico from Santa Rosa to an area just north of Carlsbad. The status of the species was assessed within its historic range and aspects of its life history and ecology were investigated. The distribution and abundance of the species seems to have declined during the last 40 years because much of its habitat is periodically dewatered. The bluntnose shiner occurs in the Pecos River from Fort Sumner to Artesia. Fishes most frequently associated with N. s. pecosensis were Hybognathus placitus, Hybopsis aestivalis, Notropis jemezanus, N. lutrensis, and N. stramineus. Bluntnose shiners appear to have an extended spawning period with fecundity similar to that of other species of Notropis. Reproduction is presently confined to two perennial sections of the Pecos River that exist because of local groundwater seepage. The species was most abundant in these two areas and was collected most often in main-channel habitats having sandy substrates, low velocity laminar flows, and at depths ranging from 17 to 41 cm. The bluntnose shiner, Notropis simus (Cope), has declined in abundance