Academic Journal
Temperature and phytoplankton cell size regulate carbon uptake and carbon overconsumption in the ocean
| العنوان: | Temperature and phytoplankton cell size regulate carbon uptake and carbon overconsumption in the ocean |
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| المؤلفون: | Craig, S. E., Thomas, H., Jones, C. T., Li, W. K. W., Greenan, B. J. W., Shadwick, E. H., Burt, W. J. |
| المصدر: | eISSN: 1726-4189 |
| سنة النشر: | 2018 |
| المجموعة: | Copernicus Publications: E-Journals |
| الوصف: | Phytoplankton plays a critical role in the uptake of atmospheric carbon dioxide by the ocean, and is comprised of a spectrum of cell sizes that are strongly associated with different oceanographic conditions. Studies suggest that the ocean will become increasingly stratified in response to a warming climate, limiting nutrient exchange to the upper sunlit ocean and favouring small cells able to grow in warmer, nutrient poor conditions. Here we show that, in a temperate shelf sea, a summertime population of numerically abundant small cells accounts for approximately 20% of annual carbon uptake. These small cells are not well represented by chlorophyll a – the ubiquitously used proxy of phytoplankton biomass – but rather, are strongly correlated with surface water temperature. Given the persistent near-zero nutrient concentrations during the summer, it appears that small cells drive carbon overconsumption, and suggest that their role in carbon fixation will become increasingly important in a warming ocean. |
| نوع الوثيقة: | text |
| وصف الملف: | application/pdf |
| اللغة: | English |
| Relation: | https://bg.copernicus.org/preprints/bg-2013-310/ |
| DOI: | 10.5194/bgd-10-11255-2013 |
| الاتاحة: | https://doi.org/10.5194/bgd-10-11255-2013 https://bg.copernicus.org/preprints/bg-2013-310/ |
| رقم الانضمام: | edsbas.F685C323 |
| قاعدة البيانات: | BASE |
| DOI: | 10.5194/bgd-10-11255-2013 |
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