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首页> 外文期刊>Marine ecology progress series >Ontogenetic patterns of habitat use by reef-fish in a Marine Protected Area network: a multi-scaled remote sensing and in situ approach
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Ontogenetic patterns of habitat use by reef-fish in a Marine Protected Area network: a multi-scaled remote sensing and in situ approach

机译：海洋保护区网络中礁鱼利用栖息地的个体发育模式：多尺度遥感和原位研究

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A network of Marine Protected Areas (MPAs) on the west coast of the island of Hawaii (West Hawaii) has been shown to vary in its effectiveness to replenish depleted aquarium fish stocks. To determine the abundance and distribution of habitats needed to better design and manage MPAs in Hawaii, underwater video transects, remote sensing data and a benthic classification scheme were combined to develop a map of reef habitats previously identified as important to the life history of aquarium fish and other reef species. Using these maps, an assessment was conducted to quantify habitat use by different life history stages of the most commonly live-caught aquarium fish, the yellow tang Zebrasoma flavescens, in existing MPAs. Rugosity, small reef features (i.e. percent cover of dominant reef species) and the abundance and size of fish were quantified in 115 circular plots to determine the accuracy of mapping efforts and the distribution of fish life history stages across the reef in 4 MPAs. Visual classification and mapping of habitat types was 93 % accurate and consistent with percent cover of substrates quantified at the quadrat level. The different life history stages of yellow tangs were distributed along distinct habitat types in all of the MPAs examined. New recruits and juveniles of the yellow tang showed similar patterns of habitat use among sites and were associating with coral-rich areas and patches of the finger coral Porites compressa. In contrast, the distribution and abundance of adults varied greatly within and among sites. The development of a ground-truthed habitat map allowed a holistic examination of habitat use by yellow tang, including most life history stages, which provides key information for the design of MPAs and the advancement of ecosystem-based management.
机译：夏威夷岛（西夏威夷）西海岸的海洋保护区（MPA）网络在补充枯竭的鱼类资源方面的有效性有所不同。为了确定在夏威夷更好地设计和管理MPA所需的栖息地的数量和分布，将水下视频样带，遥感数据和底栖生物分类方案相结合，以绘制出先前被确定对水族馆鱼的生活史至关重要的礁石栖息地地图。和其他珊瑚礁物种。使用这些地图，进行了评估，以量化现有MPA中最常见的活捉水族馆鱼黄塘斑马鱼的不同生活史阶段对栖息地的利用。在115个圆形样图中量化了Rugosity，小礁石特征（即优势礁石物种的覆盖百分比）以及鱼的丰度和大小，以确定4种MPA中制图工作的准确性以及整个礁石上鱼类生活史阶段的分布。栖息地类型的视觉分类和制图准确度达93％，与在正交方水平上定量的底物覆盖率一致。在所有检验的MPA中，黄塘的不同生活史阶段均沿不同的栖息地类型分布。黄塘的新兵和少年显示出不同地点之间相似的栖息地利用方式，并且与丰富的珊瑚区域和指孔珊瑚Porites compressa斑块相关联。相反，成虫在地点内和地点之间的分布和丰度差异很大。制定了真实的栖息地地图，可以全面审查黄塘的栖息地使用情况，包括大多数生命历史阶段，这为MPA的设计和基于生态系统的管理的发展提供了关键信息。

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