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在孤树岛礁(OTIR)进行的耗资数百万美元的营养富集对珊瑚礁的影响试验(ENCORE)表明,珊瑚礁营养负荷的增加对海藻生长的作用很少或几乎没有作用,海藻生长的增加可能对珊瑚礁的功能和稳定性的相关影响也是如此。然而,对OTIR礁湖中营养浓度与珊瑚礁建议营养阈值浓度(NTC)的比较表明,包括对照区在内的所有地区,在ENCORE期间营养呈饱和状态,所以,不要指望与海藻生长有关的测量在不同处理间会有任何差异。因此,ENCORE的结果对建议NTC提供了强有力的支持,同时也支持海藻生产力,继而是珊瑚礁功能对背景营养浓度的小变化敏感的生态原理。ENCORE的主要结论,即添加营养没有引起“原始的”OTIR从珊瑚群落向海藻占优势的礁转变,这一结论与在ENCORE末期进行试验的小环礁的礁壁和礁顶上有大量的大型海藻生长的事实矛盾。
The multi-million dollar nutrient enrichment trial of coral reefs conducted at the Lonely Tree Reef (OTIR) (ENCORE) showed that increased reef nutrient load had little or no effect on seaweed growth and increased seaweed growth The same may have implications for the functioning and stability of coral reefs. However, a comparison of the recommended nutrition threshold concentrations (NTCs) for coral reefs in the OTIR lagoons shows that in all areas, including the control area, nutrition is saturated during ENCORE, so do not expect the measurements related to seaweed growth to be different There will be any difference between treatments. As a result, ENCORE’s results provide strong support for the proposed NTC while also supporting seaweed productivity, which is in turn an ecological principle that reef features are sensitive to small changes in background nutrient concentrations. The main conclusion of ENCORE that the addition of nutrients did not cause a change in the “original” OTIR from the coral community to the seaweed-dominated reefs is consistent with the large reefs and reef crests of the atolls that were tested in the late ENCORE The fact that large seaweed grows contradictory.