Enhanced Production of Oceanic Dimethylsulfide Resulting from CO2-Induced Grazing Activity in a High CO2 World
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Title
- Enhanced Production of Oceanic Dimethylsulfide Resulting from CO2-Induced Grazing Activity in a High CO2 World
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Author(s)
- Kim, Ja-Myung; Lee, Kitack; Yang, Eun Jin; Shin, Kyoungsoon; Noh, Jae Hoon; Park, Ki-tae; Hyun, Bonggil; Jeong, Hae-Jin; Kim, Ju-Hyoung; Kim, Kwang Young; Kim, Miok; Kim, Hyun-Cheol; Jang, Pung-Guk; Jang, Min-Chul
- KIOST Author(s)
- Shin, Kyoung Soon(신경순); Hyun, Bonggil(현봉길); Jang, Pung Guk(장풍국); Jang, Min Chul(장민철)
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Alternative Author(s)
- 신경순; 노재훈; 현봉길; 장풍국; 장민철
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Publication Year
- 2010-11-01
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Abstract
- Oceanic dimethylsulfide (DMS) released to the atmosphere affects the Earth's radiation budget through the production and growth of cloud condensation nuclei over the oceans. However, it is not yet known whether this negative climate feedback mechanism will intensify or weaken in oceans characterized by high CO2 levels and warm temperatures. To investigate the effects of two emerging environmental threats (ocean acidification and warming) on marine DMS production, we performed a perturbation experiment in a coastal environment. Two sets of CO2 and temperature conditions (a pCO(2) of similar to 900 ppmv at ambient temperature conditions, and a pCO(2) of similar to 900 ppmv at a temperature similar to 3 degrees C warmer than ambient) significantly stimulated the grazing rate and the growth rate of heterotrophic dinoflagellates (ubiquitous marine microzooplankton). The increased grazing rate resulted in considerable DMS production. Our results indicate that increased grazing-induced DMS production may occur in high CO2 oceans in the future.
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ISSN
- 0013-936X
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URI
- https://sciwatch.kiost.ac.kr/handle/2020.kiost/4014
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DOI
- 10.1021/es102028k
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Bibliographic Citation
- ENVIRONMENTAL SCIENCE & TECHNOLOGY, v.44, no.21, pp.8140 - 8143, 2010
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Publisher
- AMER CHEMICAL SOC
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Subject
- INCREASED PCO(2); DIMETHYLSULFONIOPROPIONATE DMSP; MICROZOOPLANKTON HERBIVORY; SULFIDE PRODUCTION; EMILIANIA-HUXLEYI; SULFUR EMISSIONS; MARINE; TEMPERATURE; PHYTOPLANKTON; ALGAE
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Type
- Article
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Language
- English
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Document Type
- Article
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