Muséum national d'Histoire naturelle, DMPA, UMR 7208 BOREA, Centre de recherche et d'enseignement sur les systèmes côtiers, 38 rue du Port Blanc, 35800 Dinard, France.
Mar Pollut Bull. 2013 Sep 15;74(1):253-63. doi: 10.1016/j.marpolbul.2013.06.049. Epub 2013 Jul 26.
This study compared 2 standardized protocols to monitor subtidal rocky shores. We tested 2 sampling methods (temporal unit and quadrat) to assess the efficiency of extracting biota parameters (diversity, abundance, and biomass) of macroalgae, Mollusca, and Porifera with respect to time-cost and the number of sampling units. Species richness and occurrence of rocky subtidal habitats were better described by visual censuses than by quadrats. The same estimated richness was provided by the 2 methods. The association of a visual census and a quadrat was the most efficient way for responding to the requirements. A minimum of 5 sampling units per discrete area is recommended for accurately describing habitats. Then, we tested the sensitivity of the proposed protocol on the Bizeux Islet to study the variations of community structures according to depth and station. Based on the results, recommendations for monitoring purposes have been proposed according to European directives.
本研究比较了两种监测潮间带岩石海岸的标准化方案。我们测试了两种采样方法（时间单位和样方），以评估提取大型藻类、软体动物和多孔动物生物参数（多样性、丰度和生物量）的效率，同时考虑时间成本和采样单元数量。与样方相比，目视计数更能准确描述潮间带岩石生境的物种丰富度和出现情况。两种方法提供的估计丰富度相同。目视计数和样方的结合是满足要求的最有效方法。建议在每个离散区域至少使用 5 个采样单元，以准确描述生境。然后，我们在比泽克斯小岛（Bizeux Islet）上测试了该方案的敏感性，以根据深度和站位研究群落结构的变化。基于这些结果，根据欧洲指令提出了监测建议。
