Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice
Freely available online through the PNAS open access option. This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10. 1073/pnas.1315162110/-/DCSupplemental. This article is a PNAS Direct Submission. The Arctic Ocean already experiences areas of low pH and high CO2, an...
Published in: | Proceedings of the National Academy of Sciences |
---|---|
Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
National Academy of Science
2013
|
Subjects: | |
Online Access: | http://hdl.handle.net/10871/15203 https://doi.org/10.1073/pnas.1315162110 |
id |
ftunivexeter:oai:ore.exeter.ac.uk:10871/15203 |
---|---|
record_format |
openpolar |
spelling |
ftunivexeter:oai:ore.exeter.ac.uk:10871/15203 2023-05-15T14:48:23+02:00 Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice Lewis, CN Brown, Kristina A. Edwards, LA Cooper, G Findlay, Helen S. 2013 http://hdl.handle.net/10871/15203 https://doi.org/10.1073/pnas.1315162110 en eng National Academy of Science http://www.ncbi.nlm.nih.gov/pubmed/24297880 Vol. 110, Issue 51, pp. E4960 - E4967 doi:10.1073/pnas.1315162110 NE/G014728/1 http://hdl.handle.net/10871/15203 0027-8424 Proceedings of the National Academy of Sciences of the United States of America PMC3870746 24297880 This is an open access article that is freely available in ORE or from the publisher's website. Please cite the published version. Freely available online through the PNAS open access option. climate change diel vertical migration ecophysiology pH response Article 2013 ftunivexeter https://doi.org/10.1073/pnas.1315162110 2022-11-20T21:30:49Z Freely available online through the PNAS open access option. This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10. 1073/pnas.1315162110/-/DCSupplemental. This article is a PNAS Direct Submission. The Arctic Ocean already experiences areas of low pH and high CO2, and it is expected to be most rapidly affected by future ocean acidification (OA). Copepods comprise the dominant Arctic zooplankton; hence, their responses to OA have important implications for Arctic ecosystems, yet there is little data on their current under-ice winter ecology on which to base future monitoring or make predictions about climate-induced change. Here, we report results from Arctic under-ice investigations of copepod natural distributions associated with late-winter carbonate chemistry environmental data and their response to manipulated pCO2 conditions (OA exposures). Our data reveal that species and life stage sensitivities to manipulated OA conditions were correlated with their vertical migration behavior and with their natural exposures to different pCO2 ranges. Vertically migrating adult Calanus spp. crossed a pCO2 range of >140 μatm daily and showed only minor responses to manipulated high CO2. Oithona similis, which remained in the surface waters and experienced a pCO2 range of <75 μatm, showed significantly reduced adult and nauplii survival in high CO2 experiments. These results support the relatively untested hypothesis that the natural range of pCO2 experienced by an organism determines its sensitivity to future OA and highlight that the globally important copepod species, Oithona spp., may be more sensitive to future high pCO2 conditions compared with the more widely studied larger copepods. Natural Environment Research Council (NERC) PML Lord Kingsland Fellowship Ralph Brown Expedition Grant Royal Geographical Society World Wide Fund for Nature Fisheries and Oceans Canada Article in Journal/Newspaper Arctic Arctic Ocean Climate change Ocean acidification Sea ice Zooplankton Copepods University of Exeter: Open Research Exeter (ORE) Arctic Arctic Ocean Canada Proceedings of the National Academy of Sciences 110 51 |
institution |
Open Polar |
collection |
University of Exeter: Open Research Exeter (ORE) |
op_collection_id |
ftunivexeter |
language |
English |
topic |
climate change diel vertical migration ecophysiology pH response |
spellingShingle |
climate change diel vertical migration ecophysiology pH response Lewis, CN Brown, Kristina A. Edwards, LA Cooper, G Findlay, Helen S. Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
topic_facet |
climate change diel vertical migration ecophysiology pH response |
description |
Freely available online through the PNAS open access option. This article contains supporting information online at www.pnas.org/lookup/suppl/doi:10. 1073/pnas.1315162110/-/DCSupplemental. This article is a PNAS Direct Submission. The Arctic Ocean already experiences areas of low pH and high CO2, and it is expected to be most rapidly affected by future ocean acidification (OA). Copepods comprise the dominant Arctic zooplankton; hence, their responses to OA have important implications for Arctic ecosystems, yet there is little data on their current under-ice winter ecology on which to base future monitoring or make predictions about climate-induced change. Here, we report results from Arctic under-ice investigations of copepod natural distributions associated with late-winter carbonate chemistry environmental data and their response to manipulated pCO2 conditions (OA exposures). Our data reveal that species and life stage sensitivities to manipulated OA conditions were correlated with their vertical migration behavior and with their natural exposures to different pCO2 ranges. Vertically migrating adult Calanus spp. crossed a pCO2 range of >140 μatm daily and showed only minor responses to manipulated high CO2. Oithona similis, which remained in the surface waters and experienced a pCO2 range of <75 μatm, showed significantly reduced adult and nauplii survival in high CO2 experiments. These results support the relatively untested hypothesis that the natural range of pCO2 experienced by an organism determines its sensitivity to future OA and highlight that the globally important copepod species, Oithona spp., may be more sensitive to future high pCO2 conditions compared with the more widely studied larger copepods. Natural Environment Research Council (NERC) PML Lord Kingsland Fellowship Ralph Brown Expedition Grant Royal Geographical Society World Wide Fund for Nature Fisheries and Oceans Canada |
format |
Article in Journal/Newspaper |
author |
Lewis, CN Brown, Kristina A. Edwards, LA Cooper, G Findlay, Helen S. |
author_facet |
Lewis, CN Brown, Kristina A. Edwards, LA Cooper, G Findlay, Helen S. |
author_sort |
Lewis, CN |
title |
Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
title_short |
Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
title_full |
Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
title_fullStr |
Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
title_full_unstemmed |
Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
title_sort |
sensitivity to ocean acidification parallels natural pco2 gradients experienced by arctic copepods under winter sea ice |
publisher |
National Academy of Science |
publishDate |
2013 |
url |
http://hdl.handle.net/10871/15203 https://doi.org/10.1073/pnas.1315162110 |
geographic |
Arctic Arctic Ocean Canada |
geographic_facet |
Arctic Arctic Ocean Canada |
genre |
Arctic Arctic Ocean Climate change Ocean acidification Sea ice Zooplankton Copepods |
genre_facet |
Arctic Arctic Ocean Climate change Ocean acidification Sea ice Zooplankton Copepods |
op_relation |
http://www.ncbi.nlm.nih.gov/pubmed/24297880 Vol. 110, Issue 51, pp. E4960 - E4967 doi:10.1073/pnas.1315162110 NE/G014728/1 http://hdl.handle.net/10871/15203 0027-8424 Proceedings of the National Academy of Sciences of the United States of America PMC3870746 24297880 |
op_rights |
This is an open access article that is freely available in ORE or from the publisher's website. Please cite the published version. Freely available online through the PNAS open access option. |
op_doi |
https://doi.org/10.1073/pnas.1315162110 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
110 |
container_issue |
51 |
_version_ |
1766319466702962688 |