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首页> 外文期刊>Marine ecology progress series >Spatial synchrony and temporal dynamics of juvenile red drum Sciaenops ocellatus populations in South Carolina, USA
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Spatial synchrony and temporal dynamics of juvenile red drum Sciaenops ocellatus populations in South Carolina, USA

机译：美国南卡罗来纳州的小红鼓水豚（Sciaenops ocellatus）种群的空间同步和时间动态

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摘要

Across a species' range, the population dynamics of some areas may express spatial synchrony (i.e. they fluctuate with one another), whereas other areas may express no synchrony (they fluctuate independently). The degree of synchrony and spatial extent of synchrony are important considerations when assessing the population as a whole. We examined these aspects in red drum Sciaenops ocellatus along the coast of South Carolina using long-term survey data of juvenile abundance in estuarine areas separated by up to ～200 km. Synchrony of year class strength was detected among areas, but the degree of synchrony declined significantly with distance. By comparison, genetic segregation along the coast was either weak or undetectable (based on allele frequencies at 8 microsatellite loci), although it depended on the year class (2004, 2005 or 2007) of fish that was tested. By standardizing juvenile abundance data across estuaries and survey types, a single, region-wide juvenile time series was generated that covered the 1985-2007 year classes. The juvenile time series correlated significantly with the year class composition of the present-day adult population, which was determined using otoliths collected by a separate survey operating in deeper adult habitats. Future work integrating data across even broader spatial scales would assist in the understanding of large-scale ecological processes that control fluctuations in red drum populations, and would provide useful information for fishery managers.
机译：在整个物种范围内，某些地区的种群动态可能表示空间同步（即它们彼此波动），而其他地区可能没有同步（它们独立地波动）。在评估总体人口时，同步程度和空间同步程度是重要的考虑因素。我们使用距离不超过200 km的河口区域中的幼鱼丰度的长期调查数据，对南卡罗来纳州沿海的红鼓海豚（Sciaenops ocellatus）的这些方面进行了研究。在地区之间检测到年级力量同步，但同步程度随距离显着下降。相比之下，沿海岸的遗传隔离是弱的或不可检测的（基于8个微卫星位点的等位基因频率），尽管它取决于所测试鱼类的年级（2004、2005或2007）。通过标准化跨河口和调查类型的少年丰度数据，生成了一个涵盖整个地区的1985-2007年的单个少年时间序列。青少年时间序列与当今成年种群的年级组成显着相关，这是由在较深的成年栖息地进行的一项单独调查收集的耳石确定的。未来在更广泛的空间尺度上整合数据的工作将有助于理解控制红鼓种群波动的大规模生态过程，并将为渔业管理者提供有用的信息。

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  • 来源
    《Marine ecology progress series》 |2010年第15期|p.221-236|共16页
  • 作者

    Stephen A. Arnott; William A Roumillat; John A. Archambault; Charles A. Wenner; Joy I. Gerhard; Tanya L. Darden; Michael R. Denson;

  • 作者单位

    Marine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA;

    rnMarine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA;

    rnMarine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA;

    rnMarine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA;

    rnMarine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA Grice Marine Laboratory, College of Charleston, Charleston, South Carolina, 29412, USA;

    rnMarine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA;

    rnMarine Resources Research Institute, South Carolina Department of Natural Resources, Charleston, South Carolina, 29412, USA;

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  • 正文语种 eng
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  • 关键词

    sciaenops ocellatus; red drum; synchrony; population dynamics; recruitment; genetics; microsatellites; south carolina;

    机译：sciaenops ocellatus;红鼓同步性人口动态;招聘;遗传学微卫星;南卡罗来纳;

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