Appropriate pCO2 treatments in ocean acidification experiments

Appropriate pCO2 treatments in ocean acidification experiments
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海洋酸化实验中适当的 pCO2 处理

DOI:
10.1007/s00227-012-2052-0
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发表时间:
2013
期刊:
影响因子:
2.4
通讯作者:
D. Shallin Busch
D. Shallin Busch
中科院分区:
生物学2区
文献类型:
--
作者:
P. Mcelhany;D. Shallin Busch

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在模拟当前和未来 pCO2 浓度的处理中培养生物体的实验对于海洋酸化 (OA) 研究至关重要。大多数 OA 暴露实验使用平均大气 pCO2 水平作为基线处理。我们对全球碳化学数据集进行了生态区规模的分析。对于许多地区来说,大气 pCO2 水平并不是海洋碳化学的适当表征。我们认为,在设定基线处理条件时应忽略大气中的 pCO2,并且实验设计应依赖于研究对象栖息地中碳化学的测量。由于碳化学条件随空间和时间的变化而变化,我们建议使用一系列 pCO2 值作为对照,而不是单个值。我们用太平洋磷虾栖息地的数据来说明这个问题,太平洋磷虾目前生活在 pCO2 约为 900 µatm 的水域,该浓度远高于当前全球大气平均值。
Experiments in which organisms are reared in treatments simulating current and future pCO2 concentrations are critical for ocean acidification (OA) research. The majority of OA exposure experiments use average atmospheric pCO2 levels as a baseline treatment. We conducted an ecoregion-scale analysis of global carbon chemistry datasets. For many locales, atmospheric pCO2 levels are not an appropriate characterization of marine carbon chemistry. We argue that atmospheric pCO2 should be disregarded when setting baseline treatment conditions and experimental design should rely on measurements of carbon chemistry in a study subject’s habitat. As carbon chemistry conditions vary with space and time, we suggest using a range of pCO2 values as a control rather than a single value. We illustrate this issue with data on the habitat of Euphausia pacifica, which currently lives in waters with a pCO2 around 900 μatm, a concentration much higher than the current global atmospheric mean.
DOI: 10.5194/bg-7-3879-2010
发表时间: 2010-01-01
期刊: BIOGEOSCIENCES
影响因子: 4.9
作者:
Thomsen, J.;Gutowska, M. A.;Melzner, F.
通讯作者: Melzner, F.