General Environmental Technos Co., Ltd., Tokyo 101-0042, Japan.
Mar Pollut Bull. 2013 Aug 30;73(2):443-51. doi: 10.1016/j.marpolbul.2013.02.009. Epub 2013 Mar 5.
Carbon capture and storage (CCS) methods, either sub-seabed or in ocean depths, introduces risk of CO2 leakage and subsequent interaction with the ecosystem. It is therefore important to obtain information on possible effects of CO2. In situ CO2 exposure experiments were carried out twice for 10 days during 2005 using a Benthic Chamber system at 400 m depth in Storfjorden, Norway. pCO2 in the water above the sediment in the chambers was controlled at approximately 500, 5000 and 20,000 μatm, respectively. This article describes the experiment and the results from measured the biological responses within the chamber sediments. The results show effects of elevated CO2 concentrations on biological processes such as increased nanobenthos density. Methane production and sulphate reduction was enhanced in the approximately 5000 μatm chamber.
碳捕获和封存（CCS）方法，无论是海底还是海洋深处，都存在 CO2 泄漏的风险，并可能与生态系统发生相互作用。因此，获取有关 CO2 可能产生的影响的信息非常重要。在 2005 年，利用挪威斯特福（Storfjorden）海域 400 米深处的底栖生物室系统，进行了两次为期 10 天的原位 CO2 暴露实验。水上方沉积物中的 pCO2 分别控制在约 500、5000 和 20000 μatm 左右。本文描述了实验和从室内沉积物中测量的生物反应结果。结果表明，CO2 浓度升高对生物过程有影响，如纳米底栖生物密度增加。在约 5000 μatm 的室内，甲烷产生和硫酸盐还原得到增强。
