IRD, UR128, BP A5, 98 848 Nouméa Cedex, New Caledonia.
Mar Pollut Bull. 2010;61(7-12):367-74. doi: 10.1016/j.marpolbul.2010.06.016. Epub 2010 Aug 14.
The distribution of zooplanktonic prey of fish larvae was examined in three bays and two lagoonal stations in the Southwest lagoon of New Caledonia. Water column conditions were characterized by increasing chlorophyll a and particulate organic matter (POM) concentrations from the lagoon to the estuarine bay. The mean zooplankton settled volume and total density were significantly higher in the estuarine bay, reaching 35.1 mL m(-3) and 3.5 x 10(5) individuals m(-3), respectively. The total zooplankton density also progressively increased along the sampling period. The composition of assemblages differed between the lagoon and the bays, and was similar in the three bays. Wind speed, surface temperature, chlorophyll a and POM explained these variations, as revealed by a co-inertia analysis (COIA). The prey preferred by fish larvae, i.e. small crustaceans and small copepods, were more abundant in bays. Sheltered bays, most influenced by terrigenous inputs, are likely to provide the best feeding conditions.
本研究调查了新喀里多尼亚西南泻湖的三个海湾和两个泻湖站中鱼类幼体的浮游动物猎物分布情况。水柱状条件的特点是从泻湖到河口湾，叶绿素 a 和颗粒有机物质（POM）浓度逐渐增加。在河口湾，沉降的浮游动物体积和总密度平均值显著更高，分别达到 35.1 mL m(-3)和 3.5 x 10(5)个个体 m(-3)。总浮游动物密度也沿着采样期逐渐增加。浮游动物组合的组成在泻湖和海湾之间存在差异，并且在三个海湾中相似。风速、表面温度、叶绿素 a 和 POM 通过共惯性分析（COIA）揭示了这些变化。鱼类幼体偏爱的猎物，即小型甲壳类动物和小型桡足类动物，在海湾中更为丰富。受陆源输入影响最大的避风海湾，可能提供最佳的摄食条件。
