Ifremer, IRD, Univ Nouvelle-Calédonie, Univ LaRéunion, CNRS, ENTROPIE, F-98800 Nouméa, New Caledonia.
Ifremer, IRD, Univ Nouvelle-Calédonie, Univ LaRéunion, CNRS, ENTROPIE, F-98800 Nouméa, New Caledonia.
Mar Pollut Bull. 2020 Nov;160:111576. doi: 10.1016/j.marpolbul.2020.111576. Epub 2020 Sep 4.
Temperature is important for pearl oyster reproduction, pelagic larval duration, and growth in the context of pearl farming, but has seldom been monitored over long periods in remote atolls. To test if satellite-derived Sea Surface Temperature (SST) could provide a solution, two daily global SST products were compared with 18 high-precision loggers deployed during 10-months in the wide Raroia atoll (Tuamotu Archipelago, French Polynesia). The Multi-scale-Ultra-high-Resolution (MUR) SST was better correlated with lagoon temperature (r > 0.97) than the Global-Foundation-Sea-Surface-Temperature-Analysis (G1SST) SST (r < 0.94). Differences between observations and MUR SST ranged between -0.75 °C and + 1.12 °C and were influenced by seasons and locations, depth, and hours of measurements. Within this uncertainty range, simulations using a Dynamic Energy Budget model predicted similar life traits of oysters. Therefore, MUR SST appears suitable to monitor lagoon temperature in wide atolls, model oyster population dynamics and assist pearl oyster research and management.
温度对珍珠贝繁殖、浮游幼虫期和珍珠养殖中的生长很重要，但在偏远环礁上很少进行长时间监测。为了测试卫星衍生的海面温度 (SST) 是否可以提供解决方案，将两种每日全球 SST 产品与在拉罗亚环礁 (土阿莫土群岛，法属波利尼西亚) 部署的 18 个高精度记录仪进行了 10 个月的比较。多尺度超高分辨率 (MUR) SST 与泻湖温度的相关性(r>0.97) 优于全球基础海面温度分析 (G1SST) SST (r<0.94)。观测值与 MUR SST 之间的差异在-0.75°C 和+1.12°C 之间，受季节和位置、深度以及测量时间的影响。在这个不确定范围内，使用动态能量预算模型进行的模拟预测了牡蛎的相似生命特征。因此，MUR SST 似乎适合监测宽阔环礁的泻湖温度、模拟牡蛎种群动态并协助珍珠牡蛎研究和管理。
