MCR LTER: Coral Reef: Water Column nutrient data in lagoons of Moorea, French Polynesia

Nutrients are important for ecosystem structure and community dynamics. To quantify fine-scale patterns of variation in water column nutrients in tropical lagoon ecosystems, nitrite + nitrate, phosphate, and silicate were quantified from water column samples collected in lagoons around Moorea, French Polynesia during April-May starting in 2021 using flow injection with an automated ion analyzer. Over the first three years, water column nitrite + nitrate and silicate were higher in bays and fringing reef habitats, and phosphate was higher in bays.

营养盐对于生态系统结构与群落动态具有不可或缺的调控作用。为量化热带泻湖生态系统中水柱营养盐的精细尺度变异模式，研究团队于2021年起每年4-5月，在法属波利尼西亚莫雷阿岛周边的泻湖采集水柱样本，采用流动注射自动离子分析法对亚硝酸盐+硝酸盐（nitrite + nitrate）、磷酸盐（phosphate）及硅酸盐（silicate）进行定量检测。在最初三年的监测周期内，海湾与岸礁生境的水柱亚硝酸盐+硝酸盐及硅酸盐浓度显著更高，而磷酸盐浓度在海湾中整体偏高。