Adjeroud Mehdi, Mauguit Quentin, Penin Lucie
Institut de Recherche pour le Développement, UMR 9220 ENTROPIE, Laboratoire d'Excellence "CORAIL", UPVD 52 Avenue Paul Alduy, 66860 Perpignan, France.
USR 3278 CNRS-EPHE-UPVD, Centre de Recherches Insulaires et Observatoire de l'Environnement, UPVD 52 Avenue Paul Alduy, 66860 Perpignan, France; Université de Liège, Département d'Ecologie Marine, Laboratoire de Biologie Animale et d'Ecotoxicologie, Allée du 6 août, B-4000 Liège, Belgium.
Mar Environ Res. 2015 Dec;112(Pt A):131-9. doi: 10.1016/j.marenvres.2015.10.004. Epub 2015 Oct 20.
We report variation in the size-structure of three coral taxa in the Society Islands (French Polynesia) using a hierarchical sampling design that integrates the regional (among three islands: Moorea, Raiatea, Tahiti), island (among three locations around each island), and local levels (among three depths: 6, 12, 18 m, at each location). All coral taxa exhibited strong heterogeneity in their size-structure, with marked variation among depths, locations, and islands. Porites spp. and Acropora globiceps populations at 6 m depth were dominated by smaller size classes compared to other depths. Regional-scale variation was particularly evident for Pocillopora meandrina and A. globiceps, with a higher proportion of smaller colonies found at Raiatea, probably as a result of recent cyclones followed by higher recruitment rates. Porites spp. populations were characterized by a preponderance of larger colonies, and greater size ranges compared to the other two taxa.
我们采用分层抽样设计，报告了社会群岛（法属波利尼西亚）三种珊瑚类群的大小结构变化，该设计整合了区域（在三个岛屿之间：莫雷阿岛、赖阿特阿岛、塔希提岛）、岛屿（在每个岛屿周围的三个地点之间）和局部水平（在每个地点的三个深度之间：6米、12米、18米）。所有珊瑚类群在其大小结构上都表现出强烈的异质性，在深度、地点和岛屿之间存在显著差异。与其他深度相比，6米深度处的孔珊瑚属和球状鹿角珊瑚种群以较小的尺寸类别为主。对于中型鹿角珊瑚和球状鹿角珊瑚来说，区域尺度的变化尤为明显，在赖阿特阿岛发现较小群体的比例更高，这可能是近期飓风过后招募率较高的结果。孔珊瑚属种群的特征是大型群体占优势，且与其他两个类群相比尺寸范围更大。
