Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina
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 CO2 emissions. The effect of ocean...
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ftcalifstateuniv:oai:scholarworks:9s1619677 2024-09-30T14:29:43+00:00 Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina Steeve Comeau S. Alliouane J. P. Gattuso 2012 http://hdl.handle.net/10211.3/207218 English eng Inter Research http://hdl.handle.net/10211.3/207218 copyright Inter-Research 2012 Ocean acidification Shell growth Pteropod Arctic Article 2012 ftcalifstateuniv 2024-09-10T17:06:14Z 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 CO2 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 [pHT] ? 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. Marine Ecology - Progress Series 456, 279-284. (2012) 1616-1599 0171-8630 Article in Journal/Newspaper Arctic Arctic Ocean arctic pteropod arctic pteropods canada basin Limacina helicina Ocean acidification Scholarworks from California State University Arctic Arctic Ocean Canada |
institution |
Open Polar |
collection |
Scholarworks from California State University |
op_collection_id |
ftcalifstateuniv |
language |
English |
topic |
Ocean acidification Shell growth Pteropod Arctic |
spellingShingle |
Ocean acidification Shell growth Pteropod Arctic Steeve Comeau S. Alliouane J. P. Gattuso Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina |
topic_facet |
Ocean acidification Shell growth Pteropod Arctic |
description |
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 CO2 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 [pHT] ? 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. Marine Ecology - Progress Series 456, 279-284. (2012) 1616-1599 0171-8630 |
format |
Article in Journal/Newspaper |
author |
Steeve Comeau S. Alliouane J. P. Gattuso |
author_facet |
Steeve Comeau S. Alliouane J. P. Gattuso |
author_sort |
Steeve Comeau |
title |
Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina |
title_short |
Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina |
title_full |
Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina |
title_fullStr |
Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina |
title_full_unstemmed |
Effects of ocean acidification on overwintering juvenile Arctic pteropods Limacina helicina |
title_sort |
effects of ocean acidification on overwintering juvenile arctic pteropods limacina helicina |
publisher |
Inter Research |
publishDate |
2012 |
url |
http://hdl.handle.net/10211.3/207218 |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean arctic pteropod arctic pteropods canada basin Limacina helicina Ocean acidification |
genre_facet |
Arctic Arctic Ocean arctic pteropod arctic pteropods canada basin Limacina helicina Ocean acidification |
op_relation |
http://hdl.handle.net/10211.3/207218 |
op_rights |
copyright Inter-Research 2012 |
_version_ |
1811634934721282048 |