IRD, MIO, UR235, IRD Tahiti, BP 529, 98713 Papeete, French Polynesia.
Mar Pollut Bull. 2012;65(10-12):471-7. doi: 10.1016/j.marpolbul.2011.12.026. Epub 2012 Jan 17.
The environmental characteristics of Ahe deep lagoon (Tuamotu Archipelago, French Polynesia) were studied over 3 years with the aim of explaining the spatial and temporal variability of the natural food available for pearl oysters with a special focus on phytoplankton biomass and global photosynthesis/respiration ratio of the lagoon. Chlorophyll averaged 0.34±0.01 μg L(-1) and our findings did not confirm increased phytoplankton biomass in deep lagoonal waters. Phytoplankton production appears to be limited firstly by nitrogen and respiratory processes overpass photosynthetic processes at least in the north-eastern edge of the atoll. Grazing by pearl oysters in culture seems to decrease the POC concentration but not the phytoplankton biomass. Oysters graze mainly on non chlorophyllian particles.
对图阿莫图群岛（法属波利尼西亚）的阿赫深环礁进行了为期 3 年的环境特征研究，目的是解释珍珠贻贝可用天然食物的时空可变性，特别关注浮游植物生物量和环礁的全球光合作用/呼吸比。叶绿素平均为 0.34±0.01 μg/L，我们的研究结果并未证实深环礁水域浮游植物生物量增加。浮游植物的生产力似乎首先受到氮的限制，并且呼吸过程至少在环礁的东北边缘超过了光合作用过程。养殖珍珠贻贝的摄食似乎降低了 POC 浓度，但没有降低浮游植物生物量。贻贝主要以非叶绿素颗粒为食。
