Global Change Institute and Coral Reef Ecosystems Laboratory, School of Biological Sciences, The University of Queensland, Brisbane, Australia.
Sci Rep. 2012;2:413. doi: 10.1038/srep00413. Epub 2012 May 21.
Ocean acidification poses multiple challenges for coral reefs on molecular to ecological scales, yet previous experimental studies of the impact of projected CO₂ concentrations have mostly been done in aquarium systems with corals removed from their natural ecosystem and placed under artificial light and seawater conditions. The Coral-Proto Free Ocean Carbon Enrichment System (CP-FOCE) uses a network of sensors to monitor conditions within each flume and maintain experimental pH as an offset from environmental pH using feedback control on the injection of low pH seawater. Carbonate chemistry conditions maintained in the -0.06 and -0.22 pH offset treatments were significantly different than environmental conditions. The results from this short-term experiment suggest that the CP-FOCE is an important new experimental system to study in situ impacts of ocean acidification on coral reef ecosystems.
海洋酸化在分子到生态尺度上给珊瑚礁带来了多重挑战，但之前关于预测 CO₂浓度影响的实验研究大多是在水族馆系统中进行的，这些系统将珊瑚从其自然生态系统中取出，置于人工光照和海水条件下。珊瑚原代自由海洋碳富集系统（CP-FOCE）使用传感器网络来监测每个水槽内的条件，并使用注入低 pH 海水的反馈控制来维持实验 pH 与环境 pH 的偏移，从而维持实验 pH 与环境 pH 的偏移。在-0.06 和-0.22 pH 偏移处理中维持的碳酸盐化学条件与环境条件有显著差异。这项短期实验的结果表明，CP-FOCE 是一个重要的新实验系统，可以用来研究海洋酸化对珊瑚礁生态系统的原位影响。
