Phytoplankton do not produce carbon-rich organic matter in high CO2 oceans
SCIE
SCOPUS
- Title
- Phytoplankton do not produce carbon-rich organic matter in high CO2 oceans
- Authors
- KIM, JA MYUNG; LEE, KITACK; SUH, YOUNG-SANG; HAN, IN-SUNG
- Date Issued
- 2018-05
- Publisher
- American Geophysical Union
- Abstract
- The ocean is a substantial sink for atmospheric carbon dioxide (CO2) released as a result of human activities. Over the coming decades the dissolved inorganic C concentration in the surface ocean is predicted to increase, which is expected to have a direct influence on the efficiency of C utilization (consumption and production) by phytoplankton during photosynthesis. Here we evaluated the generality of C-rich organic matter production by examining the elemental C:N ratio of organic matter produced under conditions of varying pCO2. The data used in this analysis were obtained from a series of pelagic in situ pCO2 perturbation studies that were performed in the diverse ocean regions and involved natural phytoplankton assemblages. The C:N ratio of the resulting particulate and dissolved organic matter did not differ across the range of pCO2 conditions tested. In particular, the ratio for particulate organic C and N was found to be 6.58 ± 0.05, close to the theoretical value of 6.6. ©2018. American Geophysical Union. All Rights Reserved.
- URI
- https://oasis.postech.ac.kr/handle/2014.oak/116752
- DOI
- 10.1029/2017GL075865
- ISSN
- 0094-8276
- Article Type
- Article
- Citation
- Geophysical Research Letters, vol. 45, page. 4189 - 4198, 2018-05
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