Marine Ecology Progress Series 456:279
ABSTRACT: Pteropods are planktonic mollusks that play an important role in the food web of various ecosystems, particularly at high latitudes. Because they produce an aragonitic shell, pteropods are expected to be very sensitive to ocean acidification driven by anthropogenic CO 2 emissions. The effe...
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ftciteseerx:oai:CiteSeerX.psu:10.1.1.1078.8535 2023-05-15T14:56:05+02:00 Marine Ecology Progress Series 456:279 S Comeau S Alliouane J.-P Gattuso Inter - Research The Pennsylvania State University CiteSeerX Archives 2012 application/pdf http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.8535 http://www.obs-vlfr.fr/%7Egattuso/publications_PDF/Comeau_etal_2012_Marine%20Ecology%20Progress%20Series.pdf en eng http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.8535 http://www.obs-vlfr.fr/%7Egattuso/publications_PDF/Comeau_etal_2012_Marine%20Ecology%20Progress%20Series.pdf Metadata may be used without restrictions as long as the oai identifier remains attached to it. http://www.obs-vlfr.fr/%7Egattuso/publications_PDF/Comeau_etal_2012_Marine%20Ecology%20Progress%20Series.pdf text 2012 ftciteseerx 2020-05-03T00:19:22Z ABSTRACT: Pteropods are planktonic mollusks that play an important role in the food web of various ecosystems, particularly at high latitudes. Because they produce an aragonitic shell, pteropods are expected to be very sensitive to ocean acidification driven by anthropogenic CO 2 emissions. The effect of ocean acidification was investigated using juveniles of the Arctic pteropod Limacina helicina from the Canada Basin of the Arctic Ocean. The animals were maintained in 3 controlled pH conditions (total scale pH [pH T ] Ϸ 8.05, 7.90 or 7.75) for 8 d, and their mortality and the linear extension of their shell were monitored. The pH did not impact the mortality rate, but the linear extension of the shell decreased as a function of declining pH. Surprisingly, the pteropods were still able to extend their shell at an aragonite saturation state as low as 0.6. Nevertheless, dissolution marks were visible on the whole shell, indicating that calcium carbonate dissolution had also occurred, casting doubts on the ability of the pteropods to maintain a positive balance between precipitation and dissolution of calcium carbonate under corrosive conditions. Text Arctic Arctic Ocean arctic pteropod canada basin Limacina helicina Ocean acidification Unknown Arctic Arctic Ocean Canada |
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Open Polar |
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ftciteseerx |
language |
English |
description |
ABSTRACT: Pteropods are planktonic mollusks that play an important role in the food web of various ecosystems, particularly at high latitudes. Because they produce an aragonitic shell, pteropods are expected to be very sensitive to ocean acidification driven by anthropogenic CO 2 emissions. The effect of ocean acidification was investigated using juveniles of the Arctic pteropod Limacina helicina from the Canada Basin of the Arctic Ocean. The animals were maintained in 3 controlled pH conditions (total scale pH [pH T ] Ϸ 8.05, 7.90 or 7.75) for 8 d, and their mortality and the linear extension of their shell were monitored. The pH did not impact the mortality rate, but the linear extension of the shell decreased as a function of declining pH. Surprisingly, the pteropods were still able to extend their shell at an aragonite saturation state as low as 0.6. Nevertheless, dissolution marks were visible on the whole shell, indicating that calcium carbonate dissolution had also occurred, casting doubts on the ability of the pteropods to maintain a positive balance between precipitation and dissolution of calcium carbonate under corrosive conditions. |
author2 |
The Pennsylvania State University CiteSeerX Archives |
format |
Text |
author |
S Comeau S Alliouane J.-P Gattuso Inter - Research |
spellingShingle |
S Comeau S Alliouane J.-P Gattuso Inter - Research Marine Ecology Progress Series 456:279 |
author_facet |
S Comeau S Alliouane J.-P Gattuso Inter - Research |
author_sort |
S Comeau |
title |
Marine Ecology Progress Series 456:279 |
title_short |
Marine Ecology Progress Series 456:279 |
title_full |
Marine Ecology Progress Series 456:279 |
title_fullStr |
Marine Ecology Progress Series 456:279 |
title_full_unstemmed |
Marine Ecology Progress Series 456:279 |
title_sort |
marine ecology progress series 456:279 |
publishDate |
2012 |
url |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.8535 http://www.obs-vlfr.fr/%7Egattuso/publications_PDF/Comeau_etal_2012_Marine%20Ecology%20Progress%20Series.pdf |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean arctic pteropod canada basin Limacina helicina Ocean acidification |
genre_facet |
Arctic Arctic Ocean arctic pteropod canada basin Limacina helicina Ocean acidification |
op_source |
http://www.obs-vlfr.fr/%7Egattuso/publications_PDF/Comeau_etal_2012_Marine%20Ecology%20Progress%20Series.pdf |
op_relation |
http://citeseerx.ist.psu.edu/viewdoc/summary?doi=10.1.1.1078.8535 http://www.obs-vlfr.fr/%7Egattuso/publications_PDF/Comeau_etal_2012_Marine%20Ecology%20Progress%20Series.pdf |
op_rights |
Metadata may be used without restrictions as long as the oai identifier remains attached to it. |
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1766328121572720640 |