Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea
The potential impact of elevated sea surface temperature (SST) and pCO2 on algal community structure and particulate dimethylsulfoniopropionate (DMSPp) concentrations in the southeastern Bering Sea was examined using a shipboard “Ecostat” continuous culture system. The ecostat system was used to mim...
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ftdoajarticles:oai:doaj.org/article:11473fa4b6c0423ba2492231c883d68d 2023-05-15T15:43:37+02:00 Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea Peter A. Lee Sarah F. Riseman Clinton E. Hare David A. Hutchins Karine Leblanc Giacomo R. Di Tullio 2011-06-01T00:00:00Z https://doi.org/10.4081/aiol.2011.5315 https://doaj.org/article/11473fa4b6c0423ba2492231c883d68d EN eng PAGEPress Publications http://pagepressjournals.org/index.php/aiol/article/view/5315 https://doaj.org/toc/1947-5721 https://doaj.org/toc/1947-573X 1947-5721 1947-573X doi:10.4081/aiol.2011.5315 https://doaj.org/article/11473fa4b6c0423ba2492231c883d68d Advances in Oceanography and Limnology, Vol 2, Iss 1, Pp 33-47 (2011) Climate feedback global warming temperature carbon dioxide phytoplankton community structure DMSP Ecology QH540-549.5 article 2011 ftdoajarticles https://doi.org/10.4081/aiol.2011.5315 2022-12-31T15:05:00Z The potential impact of elevated sea surface temperature (SST) and pCO2 on algal community structure and particulate dimethylsulfoniopropionate (DMSPp) concentrations in the southeastern Bering Sea was examined using a shipboard “Ecostat” continuous culture system. The ecostat system was used to mimic the conditions projected to exist in the world's oceans by the end of this century (i.e. elevated pCO2 (750 ppm) and elevated SST (ambient + 4°C). Two experiments were conducted using natural phytoplankton assemblages from the high-nutrient low-chlorophyll (HNLC) central basin and from the middle domain of the southeastern continental shelf. At the HNLC site, the relative abundances of haptophytes and pelagophytes were higher and the relative abundance of diatoms lower under “greenhouse” conditions (i.e. combined 750 ppm CO2 and elevated temperature) than control conditions (380 ppm CO2 and ambient temperature). This shift in algal community structure was accompanied by increases in DMSPp (2–3 fold), DMSPp:Chl a (2–3 fold) and DMSP:PON (2 fold). At the continental shelf site, the changes in the relative abundances of haptophytes, pelagophytes and diatoms under “greenhouse” conditions were similar to those observed at the HNLC site, with 2.5 fold increases in DMSPp, 50–100% increases in DMSPp:Chl a and 1.8 fold increases in DMSP:PON. At both locations, changes in community structure and the DMSPp parameters were largely driven by increasing temperature. The observed changes were also consistent with the phytoplankton-DMS-albedo climate feedback mechanism proposed in the Charlson-Lovelock-Andreae-Warren (CLAW) hypothesis. Article in Journal/Newspaper Bering Sea Directory of Open Access Journals: DOAJ Articles Bering Sea Advances in Oceanography and Limnology 2 1 33 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
Climate feedback global warming temperature carbon dioxide phytoplankton community structure DMSP Ecology QH540-549.5 |
spellingShingle |
Climate feedback global warming temperature carbon dioxide phytoplankton community structure DMSP Ecology QH540-549.5 Peter A. Lee Sarah F. Riseman Clinton E. Hare David A. Hutchins Karine Leblanc Giacomo R. Di Tullio Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea |
topic_facet |
Climate feedback global warming temperature carbon dioxide phytoplankton community structure DMSP Ecology QH540-549.5 |
description |
The potential impact of elevated sea surface temperature (SST) and pCO2 on algal community structure and particulate dimethylsulfoniopropionate (DMSPp) concentrations in the southeastern Bering Sea was examined using a shipboard “Ecostat” continuous culture system. The ecostat system was used to mimic the conditions projected to exist in the world's oceans by the end of this century (i.e. elevated pCO2 (750 ppm) and elevated SST (ambient + 4°C). Two experiments were conducted using natural phytoplankton assemblages from the high-nutrient low-chlorophyll (HNLC) central basin and from the middle domain of the southeastern continental shelf. At the HNLC site, the relative abundances of haptophytes and pelagophytes were higher and the relative abundance of diatoms lower under “greenhouse” conditions (i.e. combined 750 ppm CO2 and elevated temperature) than control conditions (380 ppm CO2 and ambient temperature). This shift in algal community structure was accompanied by increases in DMSPp (2–3 fold), DMSPp:Chl a (2–3 fold) and DMSP:PON (2 fold). At the continental shelf site, the changes in the relative abundances of haptophytes, pelagophytes and diatoms under “greenhouse” conditions were similar to those observed at the HNLC site, with 2.5 fold increases in DMSPp, 50–100% increases in DMSPp:Chl a and 1.8 fold increases in DMSP:PON. At both locations, changes in community structure and the DMSPp parameters were largely driven by increasing temperature. The observed changes were also consistent with the phytoplankton-DMS-albedo climate feedback mechanism proposed in the Charlson-Lovelock-Andreae-Warren (CLAW) hypothesis. |
format |
Article in Journal/Newspaper |
author |
Peter A. Lee Sarah F. Riseman Clinton E. Hare David A. Hutchins Karine Leblanc Giacomo R. Di Tullio |
author_facet |
Peter A. Lee Sarah F. Riseman Clinton E. Hare David A. Hutchins Karine Leblanc Giacomo R. Di Tullio |
author_sort |
Peter A. Lee |
title |
Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea |
title_short |
Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea |
title_full |
Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea |
title_fullStr |
Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea |
title_full_unstemmed |
Potential impact of increased temperature and CO2 on particulate dimethylsulfoniopropionate in the Southeastern Bering Sea |
title_sort |
potential impact of increased temperature and co2 on particulate dimethylsulfoniopropionate in the southeastern bering sea |
publisher |
PAGEPress Publications |
publishDate |
2011 |
url |
https://doi.org/10.4081/aiol.2011.5315 https://doaj.org/article/11473fa4b6c0423ba2492231c883d68d |
geographic |
Bering Sea |
geographic_facet |
Bering Sea |
genre |
Bering Sea |
genre_facet |
Bering Sea |
op_source |
Advances in Oceanography and Limnology, Vol 2, Iss 1, Pp 33-47 (2011) |
op_relation |
http://pagepressjournals.org/index.php/aiol/article/view/5315 https://doaj.org/toc/1947-5721 https://doaj.org/toc/1947-573X 1947-5721 1947-573X doi:10.4081/aiol.2011.5315 https://doaj.org/article/11473fa4b6c0423ba2492231c883d68d |
op_doi |
https://doi.org/10.4081/aiol.2011.5315 |
container_title |
Advances in Oceanography and Limnology |
container_volume |
2 |
container_issue |
1 |
container_start_page |
33 |
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1766377798591578112 |