Coral growth in high-nutrient, low-pH seawater: A case study of corals cultured at the Waikiki Aquarium, Honolulu, Hawaii
Coral growth in high-nutrient, low-pH seawater: A case study of corals cultured at the Waikiki Aquarium, Honolulu, Hawaii
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DOI：
10.1007/bf00334344
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发表时间：
1995-11-01
期刊：
影响因子：
3.5
通讯作者：
Crow, GL
中科院分区：
文献类型：
--
作者：
Atkinson, MJ;Carlson, B;Crow, GL
在夏威夷檀香山的威基基水族馆，有57种造礁石珊瑚在高营养的海水中生长。在这项研究中，我们记录了水族馆水溶解的营养物质和碳的化学条件。水族馆水的特点是无机营养物的浓度相对于大多数天然珊瑚礁生态系统高：SiO（3）（类似于）200亩M; PO（4）（类似于）0.6 μ M; NO（3）5 μ M; NH4相比之下，有机营养物的浓度低于大多数热带表层海洋沃茨：DOP（类似）0.1 μ M和DON（类似）4 μ M。进入该设施的井水pH值低，造成二氧化碳过度饱和。水族箱中的珊瑚群落吸收无机营养盐并释放有机营养盐，水族箱珊瑚群落的营养盐吸收速率与天然珊瑚礁群落的营养盐吸收速率相似。珊瑚的生长速度接近实地报告的上限，表明珊瑚可以而且确实在相对高营养的水中生长旺盛。珊瑚的生长似乎并没有被抑制在氮浓度高达5 μ M的声明意味着珊瑚只能在低营养贫营养海水中生长，因此是过度简化的过程，管理这些生物体的生长。一些基本的指导方针，以维持水族馆的珊瑚群落。
Fifty-seven species of hermatypic corals have been maintained and grown in high-nutrient seawater at the Waikiki Aquarium, Honolulu, Hawaii. In this study we document the chemical conditions of aquarium water in terms of dissolved nutrients and carbon. Aquarium water is characterized by concentrations of inorganic nutrients that are high relative to most natural reef ecosystems: SiO(3)(similar to)200 mu M; PO(4)(similar to)0.6 mu M; NO(3)(similar to)5 mu M; NH4 (similar to)2 mu M In contrast, concentrations of organic nutrients are lower than most tropical surface ocean waters: DOP (similar to)0.1 mu M and DON (similar to)4 mu M. The incoming well-water servicing the facility has low pH, creating over-saturation of carbon dioxide. The coral communities in aquaria took up inorganic nutrients and released organic nutrients, Rates of nutrient uptake into aquaria coral communities-were similar to nutrient uptake by natural reef communities. Coral growth rates were near the upper rates reported from the field, demonstrating corals can and do flourish in relatively high-nutrient water. The growth of corals does not appear to be inhibited at concentrations of nitrogen up to 5 mu M Statements implying that corals can only grow in low nutrient oligotrophic seawater are therefore oversimplifications of processes that govern growth of these organisms. Some basic guidelines are given for maintenance of coral communities in aquaria.