• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文学位 >Aspects of the behavioral ecology, life history, genetics, and morphology of the Hawaiian kuhliid fishes.
【24h】

Aspects of the behavioral ecology, life history, genetics, and morphology of the Hawaiian kuhliid fishes.

机译：夏威夷kuhliid鱼类的行为生态，生活史，遗传和形态方面。

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

Flagtails, members of the Genus Kuhlia, are Indo-Pacific fishes found in marine and freshwater habitats. Known locally as pholehole, they are important food fishes in the Hawaiian Islands and were often used by Hawaiians in traditional ceremonies. Local fishermen have noted the presence of two morphotypes in Hawai'i, although at the beginning of this study only one species, Kuhlia sandvicensis, was identified in the scientific literature. For this dissertation research, morphological and DNA studies of the two morphotypes determined that two species of the genus Kuhlia do exist in Hawai'i. Subsequently, Randall and Randall (2001) published a revision of this genus, which included a description, based on limited meristic evidence, of the “big-eyed” morphotype as Kuhlia xenura . This fish is apparently limited to Hawai'i, and it is the species found commonly in freshwater streams. In addition to the morphological and DNA analysis, I investigated the life history of both Hawaiian Kuhlia . Electron microprobe techniques were used to analyze otolith daily increments to answer questions about whether freshwater use was obligate in these species' life cycle. I found that K. xenura's use of stream habitats is facultative, although all individuals examined had spent time in fresh water at some point during their life. Kuhlia sandvicensis individuals also resided in water of decreased salinity at various points in their life cycle. However, there appears to be differences in habitat preferences by the two species, with only K. xenura residing in freshwater streams. Future research comparing their ecology will provide a greater understanding of the importance of streams and tide pools as nursery habitats for these fishes. Due to the former recognition of Hawaiian Kuhlia as one species, management strategies currently in place are possibly more relevant for one species than the other. Thus, conservation plans for both μholehole should be reconsidered in light of my results that these two “types” are separate species with genetically distinct populations. Their status as popular food fishes, coupled with the evidence that K. xenura appears to be endemic to the Hawaiian Islands, makes proper identification, monitoring, and management practices essential for their conservation.
机译：旗尾属 Kuhlia 的成员，是在海洋和淡水生境中发现的印度太平洋鱼类。它们是夏威夷群岛上重要的食用鱼，在当地被称为“孔洞”，夏威夷人经常在传统仪式中使用它们。当地的渔民注意到夏威夷有两种形态型，尽管在本研究开始时，科学文献中只鉴定出一种 Kuhlia sandvicensis 。对于本论文的研究，这两种形态类型的形态学和DNA研究确定夏威夷确实存在两种 Kuhlia 种。随后，Randall和Randall（2001）发表了该属的修订版，其中包括基于有限的综合证据，将“大眼”形态型描述为 Kuhlia xenura 。这种鱼显然仅限于夏威夷，它是淡水溪流中常见的物种。除了进行形态学和DNA分析外，我还研究了夏威夷人 Kuhlia 的生活史。电子微探针技术用于分析耳石的每日增量，以回答有关在这些物种的生命周期中是否必须使用淡水的问题。我发现 K。尽管所有接受检查的人在生命中的某个时候都在淡水中度过了时光，但是xenura对溪流生境的利用是令人陶醉的。 Kuhlia sandvicensis 个体在其生命周期的各个阶段也都生活在盐度降低的水中。但是，只有 K，这两个物种在生境偏好方面似乎存在差异。 xenura 驻留在淡水溪流中。未来将它们的生态进行比较的研究将使人们更加了解溪流和潮汐池作为这些鱼类的苗圃栖息地的重要性。由于夏威夷人以前将其 Kuhlia 视为一种物种，因此目前采用的管理策略可能对一种物种比另一种更为相关。因此，根据我的结果，应该重新考虑两个μ孔的保护计划，因为这两个“类型”是具有遗传上不同种群的独立物种。它们作为流行食用鱼的地位，加上 K的证据。 xenura 似乎是夏威夷群岛的特有物种，因此，对其进行适当的识别，监控和管理对保护它们至关重要。

著录项

  • 作者

    Benson, Lori Keene.;

  • 作者单位

    Louisiana State University and Agricultural & Mechanical College.;

  • 授予单位 Louisiana State University and Agricultural & Mechanical College.;
  • 学科 Biology Zoology.
  • 学位 Ph.D.
  • 年度 2002
  • 页码 p.5102
  • 总页数 122
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 动物学;
  • 关键词

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号