...
  • 主题
高级搜索  >
历史搜索 清空历史
首页> 外文期刊>Journal of Coastal Research: An International Forum for the Littoral Sciences >Relationship of Reef Fish Assemblages and Topographic Complexity on Southeastern Florida Coral Reef Habitats
【24h】

Relationship of Reef Fish Assemblages and Topographic Complexity on Southeastern Florida Coral Reef Habitats

机译：佛罗里达州东南部珊瑚礁栖息地礁鱼组合与地形复杂性的关系

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

Reef fish assemblage relationships with in situ and lidar topographic measurements across the seascape were analyzed to evaluate the possibility of using lidar metrics as a proxy for prediction models. In situ topographic complexity (i.e., linear rugosity) was measured from 346 point-count fish surveys spanning the reef seascape. Lidar topographic measurements (i.e., surface rugosity, elevation, and volume) were obtained from a high-resolution lidar bathymetric dataset of each survey's footprint. The survey sites were characterized by an independently derived benthic habitat map. Reef fish abundance and species richness appeared to increase with increasing topographic complexity. Although significant, the relationship was weak. Habitat characterization showed that these relationships changed across the seascape. The relationship between topographic complexity and species richness was more pronounced in shallow habitats, whereas, topographic complexity related more closely to abundance in offshore habitats. In situ rugosity measurement yielded the best explanation of fish assemblage structure parameters, but the weaker lidar metric correlations followed similar trends. Accordingly, lidar-measured topographic complexity may be a useful metric for reef fish distributional models. Such predictive models could have many scientific and management applications including: estimating fish stocks, viewing data trends across the seascape, and designing marine protected areas. However, better understanding of the appropriate spatial scale, measurement scale, and fish operational scale is needed, as well as more research on the dynamics of how reef fishes relate to topographic complexity and other ecological factors influencing distributions across the seascape.
机译：分析了珊瑚鱼在整个海景中与原位和激光雷达地形测量的组合关系，以评估使用激光雷达指标作为预测模型的替代方法的可能性。根据横跨礁海海景的346个点数鱼类调查，测得了当地地形的复杂性（即线性皱纹）。激光雷达地形测量（即表面粗糙度，高度和体积）是从每个调查的足迹的高分辨率激光雷达测深数据集中获得的。调查地点的特点是独立得出的底栖生境图。礁鱼的丰度和物种丰富度似乎随着地形复杂性的增加而增加。虽然很重要，但是关系很薄弱。生境特征表明这些关系在整个海景中都发生了变化。地形复杂性和物种丰富度之间的关系在浅层生境中更为明显，而地形复杂性与近海生境的丰度更密切相关。原位皱纹度测量可以最好地解释鱼群的结构参数，但较弱的激光雷达度量相关性遵循相似的趋势。因此，激光雷达测量的地形复杂性可能是礁鱼分布模型的有用度量。这种预测模型可能具有许多科学和管理应用程序，包括：估计鱼类种群，查看整个海景的数据趋势以及设计海洋保护区。但是，需要对适当的空间尺度，测量尺度和鱼类活动规模有更好的了解，并且需要更多研究礁鱼与地形复杂性以及其他影响整个海景分布的生态因素之间的关系。

著录项

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