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Temporal and spatial patterns of fish distribution and diversity in the Noxubee River, Mississippi and Alabama.

机译:Noxubee河,密西西比州和阿拉巴马州鱼类分布和多样性的时空格局。

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摘要

The Mobile Basin is a prime example of a system that has undergone extensive channel modification with corresponding declines in the distribution and abundance of the native aquatic fauna. However, many of the declining aquatic species of the Mobile basin may persist within unmodified subbasins. The Noxubee River is a subbasin of the Mobile basin that has had very little alteration throughout its watershed. I investigated the species richness and assemblage structure to determine if the contemporary fish assemblage attributes resembled the conditions represented by historic collections. The findings of this study are important because the Noxubee River has not been extensively investigated since 1983, and the river could serve as refugia for declining riverine species of the Mobile basin. After examination at both local and regional levels, I determined that a diverse contemporary fish assemblage comprising 87 species, similar to historic collections, still persists in the Noxubee River system.
机译:移动盆地是该系统的一个典型例子,该系统已经进行了广泛的渠道修改,而本地水生动物的分布和数量也相应减少。但是,莫比尔盆地许多下降的水生物种可能仍存在于未经改造的子盆地中。诺克苏比河是莫比尔盆地的一个流域,整个流域的变化很小。我调查了物种的丰富度和组合结构,以确定现代鱼类的组合属性是否类似于历史性收藏所代表的条件。这项研究的发现很重要,因为自1983年以来就没有对Noxubee河进行过广泛的调查,并且该河可以作为移动流域河流物种减少的避难所。在地方和地区层面进行检查后,我确定在Noxubee河系中仍存在与历史悠久的鱼类相似的,由87种鱼类组成的现代鱼类。

著录项

  • 作者

    Calloway, Michael Thomas.;

  • 作者单位

    Mississippi State University.;

  • 授予单位 Mississippi State University.;
  • 学科 Biology Ecology.;Biology Limnology.
  • 学位 M.S.
  • 年度 2010
  • 页码 78 p.
  • 总页数 78
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

  • 入库时间 2022-08-17 11:36:59

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