Institut de Recherche pour le Développement, UMR 9220 ENTROPIE (Institut de Recherche Pour le Développement), Université de la Réunion, Université de Nouvelle-Calédonie, Ifremer, Centre National de la Recherche Scientifique, BP A5, 98848 Nouméa cedex, New Caledonia.
Institut de Recherche pour le Développement, UMR 9220 ENTROPIE (Institut de Recherche Pour le Développement), Université de la Réunion, Université de Nouvelle-Calédonie, Ifremer, Centre National de la Recherche Scientifique, BP A5, 98848 Nouméa cedex, New Caledonia.
Mar Pollut Bull. 2022 Jun;179:113748. doi: 10.1016/j.marpolbul.2022.113748. Epub 2022 May 15.
French Polynesia atolls are spread on a vast 2300 by 1200 km Central Pacific Ocean area exposed to spatially and temporally dependent wave forcing. They also have a wide range of closed to open morphologies and several have been suitable to develop from black-lipped pearl oysters a substantial pearl farming activity in the past 30 years, representing nowadays the 2nd source of income for French Polynesia. Considering here only the component of lagoon renewal that is driven by waves, we investigate for 74 atolls different lagoon renewal metrics using 20 years of wave model data at 0.05° spatial resolution. Wavelet spectral analyses highlight that atolls, even in close vicinity, can be exposed to different and characteristic periodicities in wave-driven flows and water renewal. These characteristics are discussed in relation to pearl farming atolls, including atolls known to be efficient oyster spat producers, a critical activity for pearl farming sustainability.
法属波利尼西亚环礁分布在广阔的 2300 公里×1200 公里的中太平洋区域，受到时空相关的波浪驱动。它们还具有广泛的封闭到开放的形态，其中一些已经适合在过去 30 年中从黑唇珍珠贝中发展出大规模的珍珠养殖活动，如今是法属波利尼西亚的第二大收入来源。在这里，我们只考虑由波浪驱动的泻湖更新的组成部分，使用 20 年的 0.05°空间分辨率波浪模型数据，对 74 个环礁的不同泻湖更新指标进行了研究。小波谱分析强调，即使在近距离内，环礁也可能会受到不同的、特征性的波浪驱动流和水更新周期的影响。这些特征与珍珠养殖环礁有关，包括被认为是有效的牡蛎苗种生产者的环礁，这是珍珠养殖可持续性的关键活动。
