Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment
A mesocosm experiment was conducted in Wuyuan Bay (Xiamen), China, to investigate the effects of elevated p CO 2 on the phytoplankton species Phaeodactylum tricornutum ( P. tricornutum ), Thalassiosira weissflogii ( T. weissflogii ) and Emiliania huxleyi ( E. huxleyi ) and their production ability o...
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ftcopernicus:oai:publications.copernicus.org:bg67538 2023-05-15T17:51:44+02:00 Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment Zhang, Sheng-Hui Yu, Juan Ding, Qiong-Yao Yang, Gui-Peng Gao, Kun-Shan Zhang, Hong-Hai Pan, Da-Wei 2019-01-07 application/pdf https://doi.org/10.5194/bg-15-6649-2018 https://www.biogeosciences.net/15/6649/2018/ eng eng doi:10.5194/bg-15-6649-2018 https://www.biogeosciences.net/15/6649/2018/ eISSN: 1726-4189 Text 2019 ftcopernicus https://doi.org/10.5194/bg-15-6649-2018 2019-12-24T09:49:43Z A mesocosm experiment was conducted in Wuyuan Bay (Xiamen), China, to investigate the effects of elevated p CO 2 on the phytoplankton species Phaeodactylum tricornutum ( P. tricornutum ), Thalassiosira weissflogii ( T. weissflogii ) and Emiliania huxleyi ( E. huxleyi ) and their production ability of dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP), as well as four halocarbon compounds, bromodichloromethane ( CHBrCl 2 ), methyl bromide ( CH 3 Br ), dibromomethane ( CH 2 Br 2 ) and iodomethane ( CH 3 I ). Over a period of 5 weeks, P. tricornuntum outcompeted T. weissflogii and E. huxleyi , comprising more than 99 % of the final biomass. During the logarithmic growth phase (phase I), mean DMS concentration in high p CO 2 mesocosms (1000 µ atm) was 28 % lower than that in low p CO 2 mesocosms (400 µ atm). Elevated p CO 2 led to a delay in DMSP-consuming bacteria concentrations attached to T. weissflogii and P. tricornutum and finally resulted in the delay of DMS concentration in the high p CO 2 treatment. Unlike DMS, the elevated p CO 2 did not affect DMSP production ability of T. weissflogii or P. tricornuntum throughout the 5-week culture. A positive relationship was detected between CH 3 I and T. weissflogii and P. tricornuntum during the experiment, and there was a 40 % reduction in mean CH 3 I concentration in the high p CO 2 mesocosms. CHBrCl 2 , CH 3 Br , and CH 2 Br 2 concentrations did not increase with elevated chlorophyll a (Chl a ) concentrations compared with DMS(P) and CH 3 I , and there were no major peaks both in the high p CO 2 or low p CO 2 mesocosms. In addition, no effect of elevated p CO 2 was identified for any of the three bromocarbons. Text Ocean acidification Copernicus Publications: E-Journals Biogeosciences 15 21 6649 6658 |
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Copernicus Publications: E-Journals |
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English |
description |
A mesocosm experiment was conducted in Wuyuan Bay (Xiamen), China, to investigate the effects of elevated p CO 2 on the phytoplankton species Phaeodactylum tricornutum ( P. tricornutum ), Thalassiosira weissflogii ( T. weissflogii ) and Emiliania huxleyi ( E. huxleyi ) and their production ability of dimethylsulfide (DMS), dimethylsulfoniopropionate (DMSP), as well as four halocarbon compounds, bromodichloromethane ( CHBrCl 2 ), methyl bromide ( CH 3 Br ), dibromomethane ( CH 2 Br 2 ) and iodomethane ( CH 3 I ). Over a period of 5 weeks, P. tricornuntum outcompeted T. weissflogii and E. huxleyi , comprising more than 99 % of the final biomass. During the logarithmic growth phase (phase I), mean DMS concentration in high p CO 2 mesocosms (1000 µ atm) was 28 % lower than that in low p CO 2 mesocosms (400 µ atm). Elevated p CO 2 led to a delay in DMSP-consuming bacteria concentrations attached to T. weissflogii and P. tricornutum and finally resulted in the delay of DMS concentration in the high p CO 2 treatment. Unlike DMS, the elevated p CO 2 did not affect DMSP production ability of T. weissflogii or P. tricornuntum throughout the 5-week culture. A positive relationship was detected between CH 3 I and T. weissflogii and P. tricornuntum during the experiment, and there was a 40 % reduction in mean CH 3 I concentration in the high p CO 2 mesocosms. CHBrCl 2 , CH 3 Br , and CH 2 Br 2 concentrations did not increase with elevated chlorophyll a (Chl a ) concentrations compared with DMS(P) and CH 3 I , and there were no major peaks both in the high p CO 2 or low p CO 2 mesocosms. In addition, no effect of elevated p CO 2 was identified for any of the three bromocarbons. |
format |
Text |
author |
Zhang, Sheng-Hui Yu, Juan Ding, Qiong-Yao Yang, Gui-Peng Gao, Kun-Shan Zhang, Hong-Hai Pan, Da-Wei |
spellingShingle |
Zhang, Sheng-Hui Yu, Juan Ding, Qiong-Yao Yang, Gui-Peng Gao, Kun-Shan Zhang, Hong-Hai Pan, Da-Wei Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment |
author_facet |
Zhang, Sheng-Hui Yu, Juan Ding, Qiong-Yao Yang, Gui-Peng Gao, Kun-Shan Zhang, Hong-Hai Pan, Da-Wei |
author_sort |
Zhang, Sheng-Hui |
title |
Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment |
title_short |
Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment |
title_full |
Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment |
title_fullStr |
Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment |
title_full_unstemmed |
Effect of elevated pCO2 on trace gas production during an ocean acidification mesocosm experiment |
title_sort |
effect of elevated pco2 on trace gas production during an ocean acidification mesocosm experiment |
publishDate |
2019 |
url |
https://doi.org/10.5194/bg-15-6649-2018 https://www.biogeosciences.net/15/6649/2018/ |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
eISSN: 1726-4189 |
op_relation |
doi:10.5194/bg-15-6649-2018 https://www.biogeosciences.net/15/6649/2018/ |
op_doi |
https://doi.org/10.5194/bg-15-6649-2018 |
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Biogeosciences |
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15 |
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21 |
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6649 |
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6658 |
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1766158971507310592 |