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| DOI | https://doi.org/10.1594/PANGAEA.904010 |
| Acidification and irradiance effect on the photo-physiological fitness, growth and carbon production of the Antarctic cryptophyte Geminigera cryophila | |
| Trimborn; Scarlett | |
| 发布日期 | 2019-07-17 |
| 数据集类型 | dataset |
| 英文关键词 | cryptophytes ; irradiance ; Ocean acidification ; Southern Ocean |
| 英文简介 | Ecophysiological studies on Antarctic cryptophytes to assess whether climatic changes such as ocean acidification and enhanced stratification affect their growth in Antarctic coastal waters in the future are lacking so far. This is the first study that investigates the combined effects of the increasing availability of pCO2 (400 and 1000 μatm) and irradiance (20, 200 and 500 μmol photons m-2 s-1) on growth, elemental composition and photo-physiology of the Antarctic cryptophyte Geminigera cryophila. Under ambient pCO2, this species was characterized by a pronounced sensitivity to increasing irradiance with complete growth inhibition at the highest light intensity. Interestingly, when grown under high pCO2 this negative light effect vanished, and it reached the highest rates of growth and particulate organic carbon production at the highest irradiance compared to the other tested experimental conditions. Our results for G. cryophila reveal beneficial effects of ocean acidification in conjunction with enhanced irradiance on growth and photosynthesis. Hence, cryptophytes such as G. cryophila may be potential winners of climate change, potentially thriving better in more stratified and acidic coastal waters and contributing in higher abundance to future phytoplankton assemblages of coastal Antarctic waters. |
| 语种 | 英语 |
| 国家 | 国际 |
| 学科大类 | 气候变化 |
| 学科子类 | 气候变化 |
| 文献类型 | 数据集 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/215820 |
| 推荐引用方式 GB/T 7714 | Trimborn,Scarlett. Acidification and irradiance effect on the photo-physiological fitness, growth and carbon production of the Antarctic cryptophyte Geminigera cryophila.2019-07-17.https://doi.org/10.1594/PANGAEA.904010. |
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