Marine Institute Plymouth University, Drake Circus, Plymouth PL4 8AA, United Kingdom.
Mar Pollut Bull. 2013 Aug 30;73(2):452-62. doi: 10.1016/j.marpolbul.2013.02.011. Epub 2013 Mar 7.
Extensive CO2 vents have been discovered in the Wagner Basin, northern Gulf of California, where they create large areas with lowered seawater pH. Such areas are suitable for investigations of long-term biological effects of ocean acidification and effects of CO2 leakage from subsea carbon capture storage. Here, we show responses of benthic foraminifera to seawater pH gradients at 74-207m water depth. Living (rose Bengal stained) benthic foraminifera included Nonionella basispinata, Epistominella bradyana and Bulimina marginata. Studies on foraminifera at CO2 vents in the Mediterranean and off Papua New Guinea have shown dramatic long-term effects of acidified seawater. We found living calcareous benthic foraminifera in low pH conditions in the northern Gulf of California, although there was an impoverished species assemblage and evidence of post-mortem test dissolution.
在北加利福尼亚湾的瓦格纳盆地发现了大量的二氧化碳喷口，那里的海水 pH 值降低，形成了大片区域。这些区域非常适合研究海洋酸化的长期生物效应，以及海底碳捕获储存中 CO2 泄漏的影响。在这里，我们展示了在 74-207 米水深范围内，底栖有孔虫对海水 pH 值梯度的响应。活的（吖啶橙染色）底栖有孔虫包括异足虫属、 Bradyina 属和边缘有孔虫属。对地中海和巴布亚新几内亚近海 CO2 喷口的有孔虫研究表明，酸化海水会产生显著的长期影响。我们在北加利福尼亚湾的低 pH 值条件下发现了活的钙质底栖有孔虫，尽管这里的物种组合比较贫乏，而且有死后壳溶解的证据。
