Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions
Thecosome pteropods (pelagic mollusks) can play a key role in the food web of various marine ecosystems. They are a food source for zooplankton or higher predators such as fishes, whales and birds that is particularly important in high latitude areas. Since they harbor a highly soluble aragonitic sh...
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ftpubmed:oai:pubmedcentral.nih.gov:2894046 2023-05-15T14:54:18+02:00 Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions Comeau, Steeve Jeffree, Ross Teyssié, Jean-Louis Gattuso, Jean-Pierre 2010-06-29 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894046 http://www.ncbi.nlm.nih.gov/pubmed/20613868 https://doi.org/10.1371/journal.pone.0011362 en eng Public Library of Science http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894046 http://www.ncbi.nlm.nih.gov/pubmed/20613868 http://dx.doi.org/10.1371/journal.pone.0011362 Comeau et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. CC-BY Research Article Text 2010 ftpubmed https://doi.org/10.1371/journal.pone.0011362 2013-09-03T01:58:50Z Thecosome pteropods (pelagic mollusks) can play a key role in the food web of various marine ecosystems. They are a food source for zooplankton or higher predators such as fishes, whales and birds that is particularly important in high latitude areas. Since they harbor a highly soluble aragonitic shell, they could be very sensitive to ocean acidification driven by the increase of anthropogenic CO2 emissions. The effect of changes in the seawater chemistry was investigated on Limacina helicina, a key species of Arctic pelagic ecosystems. Individuals were kept in the laboratory under controlled pCO2 levels of 280, 380, 550, 760 and 1020 µatm and at control (0°C) and elevated (4°C) temperatures. The respiration rate was unaffected by pCO2 at control temperature, but significantly increased as a function of the pCO2 level at elevated temperature. pCO2 had no effect on the gut clearance rate at either temperature. Precipitation of CaCO3, measured as the incorporation of 45Ca, significantly declined as a function of pCO2 at both temperatures. The decrease in calcium carbonate precipitation was highly correlated to the aragonite saturation state. Even though this study demonstrates that pteropods are able to precipitate calcium carbonate at low aragonite saturation state, the results support the current concern for the future of Arctic pteropods, as the production of their shell appears to be very sensitive to decreased pH. A decline of pteropod populations would likely cause dramatic changes to various pelagic ecosystems. Text Arctic arctic pteropod arctic pteropods Limacina helicina Ocean acidification Zooplankton PubMed Central (PMC) Arctic PLoS ONE 5 6 e11362 |
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English |
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Research Article |
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Research Article Comeau, Steeve Jeffree, Ross Teyssié, Jean-Louis Gattuso, Jean-Pierre Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions |
topic_facet |
Research Article |
description |
Thecosome pteropods (pelagic mollusks) can play a key role in the food web of various marine ecosystems. They are a food source for zooplankton or higher predators such as fishes, whales and birds that is particularly important in high latitude areas. Since they harbor a highly soluble aragonitic shell, they could be very sensitive to ocean acidification driven by the increase of anthropogenic CO2 emissions. The effect of changes in the seawater chemistry was investigated on Limacina helicina, a key species of Arctic pelagic ecosystems. Individuals were kept in the laboratory under controlled pCO2 levels of 280, 380, 550, 760 and 1020 µatm and at control (0°C) and elevated (4°C) temperatures. The respiration rate was unaffected by pCO2 at control temperature, but significantly increased as a function of the pCO2 level at elevated temperature. pCO2 had no effect on the gut clearance rate at either temperature. Precipitation of CaCO3, measured as the incorporation of 45Ca, significantly declined as a function of pCO2 at both temperatures. The decrease in calcium carbonate precipitation was highly correlated to the aragonite saturation state. Even though this study demonstrates that pteropods are able to precipitate calcium carbonate at low aragonite saturation state, the results support the current concern for the future of Arctic pteropods, as the production of their shell appears to be very sensitive to decreased pH. A decline of pteropod populations would likely cause dramatic changes to various pelagic ecosystems. |
format |
Text |
author |
Comeau, Steeve Jeffree, Ross Teyssié, Jean-Louis Gattuso, Jean-Pierre |
author_facet |
Comeau, Steeve Jeffree, Ross Teyssié, Jean-Louis Gattuso, Jean-Pierre |
author_sort |
Comeau, Steeve |
title |
Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions |
title_short |
Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions |
title_full |
Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions |
title_fullStr |
Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions |
title_full_unstemmed |
Response of the Arctic Pteropod Limacina helicina to Projected Future Environmental Conditions |
title_sort |
response of the arctic pteropod limacina helicina to projected future environmental conditions |
publisher |
Public Library of Science |
publishDate |
2010 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894046 http://www.ncbi.nlm.nih.gov/pubmed/20613868 https://doi.org/10.1371/journal.pone.0011362 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic arctic pteropod arctic pteropods Limacina helicina Ocean acidification Zooplankton |
genre_facet |
Arctic arctic pteropod arctic pteropods Limacina helicina Ocean acidification Zooplankton |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2894046 http://www.ncbi.nlm.nih.gov/pubmed/20613868 http://dx.doi.org/10.1371/journal.pone.0011362 |
op_rights |
Comeau et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited. |
op_rightsnorm |
CC-BY |
op_doi |
https://doi.org/10.1371/journal.pone.0011362 |
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PLoS ONE |
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5 |
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e11362 |
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