Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea.
Coastal and offshore waters in the South China Sea are warming and becoming acidified due to rising atmospheric levels of carbon dioxide (CO2), yet the combined effects of these two stressors are poorly known. Here, we carried out shipboard incubations at ambient (398 μatm) and elevated (934 μatm) p...
Published in: | Marine Environmental Research |
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Language: | English |
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Online Access: | http://hdl.handle.net/10026.1/12579 https://doi.org/10.1016/j.marenvres.2018.08.011 |
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ftunivplympearl:oai:pearl.plymouth.ac.uk:10026.1/12579 2023-05-15T17:51:25+02:00 Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. Zhang, Y Wang, T Li, H Bao, N Hall-Spencer, JM Gao, K 2018-10 http://hdl.handle.net/10026.1/12579 https://doi.org/10.1016/j.marenvres.2018.08.011 en eng Elsevier ISSN:0141-1136 E-ISSN:1879-0291 0141-1136 http://hdl.handle.net/10026.1/12579 doi:10.1016/j.marenvres.2018.08.011 1879-0291 2019-08-29 Not known Chl a Night time respiration Ocean acidification Ocean warming Primary productivity South China Sea Journal Article 2018 ftunivplympearl https://doi.org/10.1016/j.marenvres.2018.08.011 2021-03-09T18:36:15Z Coastal and offshore waters in the South China Sea are warming and becoming acidified due to rising atmospheric levels of carbon dioxide (CO2), yet the combined effects of these two stressors are poorly known. Here, we carried out shipboard incubations at ambient (398 μatm) and elevated (934 μatm) pCO2 at in situ and in situ+1.8 °C temperatures and we measured primary productivity at two coastal and two offshore stations. Both warming and increased CO2 levels individually increased phytoplankton productivity at all stations, but the combination of high temperature and high CO2 did not, reflecting an antagonistic effect. Warming decreased Chl a concentrations in off-shore waters at ambient CO2, but had no effect in the coastal waters. The high CO2 treatment increased night time respiration in the coastal waters at ambient temperatures. Our findings show that phytoplankton assemblage responses to rising temperature and CO2 levels differ between coastal and offshore waters. While it is difficult to predict how ongoing warming and acidification will influence primary productivity in the South China Sea, our data imply that predicted increases in temperature and pCO2 will not boost surface phytoplankton primary productivity. Article in Journal/Newspaper Ocean acidification PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) Marine Environmental Research 141 159 166 |
institution |
Open Polar |
collection |
PEARL (Plymouth Electronic Archiv & ResearchLibrary, Plymouth University) |
op_collection_id |
ftunivplympearl |
language |
English |
topic |
Chl a Night time respiration Ocean acidification Ocean warming Primary productivity South China Sea |
spellingShingle |
Chl a Night time respiration Ocean acidification Ocean warming Primary productivity South China Sea Zhang, Y Wang, T Li, H Bao, N Hall-Spencer, JM Gao, K Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. |
topic_facet |
Chl a Night time respiration Ocean acidification Ocean warming Primary productivity South China Sea |
description |
Coastal and offshore waters in the South China Sea are warming and becoming acidified due to rising atmospheric levels of carbon dioxide (CO2), yet the combined effects of these two stressors are poorly known. Here, we carried out shipboard incubations at ambient (398 μatm) and elevated (934 μatm) pCO2 at in situ and in situ+1.8 °C temperatures and we measured primary productivity at two coastal and two offshore stations. Both warming and increased CO2 levels individually increased phytoplankton productivity at all stations, but the combination of high temperature and high CO2 did not, reflecting an antagonistic effect. Warming decreased Chl a concentrations in off-shore waters at ambient CO2, but had no effect in the coastal waters. The high CO2 treatment increased night time respiration in the coastal waters at ambient temperatures. Our findings show that phytoplankton assemblage responses to rising temperature and CO2 levels differ between coastal and offshore waters. While it is difficult to predict how ongoing warming and acidification will influence primary productivity in the South China Sea, our data imply that predicted increases in temperature and pCO2 will not boost surface phytoplankton primary productivity. |
format |
Article in Journal/Newspaper |
author |
Zhang, Y Wang, T Li, H Bao, N Hall-Spencer, JM Gao, K |
author_facet |
Zhang, Y Wang, T Li, H Bao, N Hall-Spencer, JM Gao, K |
author_sort |
Zhang, Y |
title |
Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. |
title_short |
Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. |
title_full |
Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. |
title_fullStr |
Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. |
title_full_unstemmed |
Rising levels of temperature and CO2 antagonistically affect phytoplankton primary productivity in the South China Sea. |
title_sort |
rising levels of temperature and co2 antagonistically affect phytoplankton primary productivity in the south china sea. |
publisher |
Elsevier |
publishDate |
2018 |
url |
http://hdl.handle.net/10026.1/12579 https://doi.org/10.1016/j.marenvres.2018.08.011 |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
ISSN:0141-1136 E-ISSN:1879-0291 0141-1136 http://hdl.handle.net/10026.1/12579 doi:10.1016/j.marenvres.2018.08.011 1879-0291 |
op_rights |
2019-08-29 Not known |
op_doi |
https://doi.org/10.1016/j.marenvres.2018.08.011 |
container_title |
Marine Environmental Research |
container_volume |
141 |
container_start_page |
159 |
op_container_end_page |
166 |
_version_ |
1766158557868195840 |