Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice
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...
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ftliverpooljmu:oai:researchonline.ljmu.ac.uk:9387 2023-05-15T14:25:47+02:00 Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice Lewis, CN Brown, KA Edwards, LA Cooper, G Findlay, HS 2013-12-02 text http://researchonline.ljmu.ac.uk/id/eprint/9387/ https://researchonline.ljmu.ac.uk/id/eprint/9387/1/Lewis_etal_2013_ArcticOcean_Copepod_OceanAcidification.pdf https://doi.org/10.1073/pnas.1315162110 en eng National Academy of Sciences https://researchonline.ljmu.ac.uk/id/eprint/9387/1/Lewis_etal_2013_ArcticOcean_Copepod_OceanAcidification.pdf Lewis, CN, Brown, KA, Edwards, LA, Cooper, G and Findlay, HS (2013) Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice. Proceedings of the National Academy of Sciences, 110 (51). ISSN 1091-6490 doi:10.1073/pnas.1315162110 GC Oceanography GE Environmental Sciences Article PeerReviewed 2013 ftliverpooljmu https://doi.org/10.1073/pnas.1315162110 2022-01-09T06:54:30Z 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. Article in Journal/Newspaper Arctic Arctic Arctic Ocean Ocean acidification Sea ice Zooplankton Copepods Liverpool John Moores University: LJMU Research Online Arctic Arctic Ocean Proceedings of the National Academy of Sciences 110 51 E4960 E4967 |
institution |
Open Polar |
collection |
Liverpool John Moores University: LJMU Research Online |
op_collection_id |
ftliverpooljmu |
language |
English |
topic |
GC Oceanography GE Environmental Sciences |
spellingShingle |
GC Oceanography GE Environmental Sciences Lewis, CN Brown, KA Edwards, LA Cooper, G Findlay, HS Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice |
topic_facet |
GC Oceanography GE Environmental Sciences |
description |
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. |
format |
Article in Journal/Newspaper |
author |
Lewis, CN Brown, KA Edwards, LA Cooper, G Findlay, HS |
author_facet |
Lewis, CN Brown, KA Edwards, LA Cooper, G Findlay, HS |
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 Sciences |
publishDate |
2013 |
url |
http://researchonline.ljmu.ac.uk/id/eprint/9387/ https://researchonline.ljmu.ac.uk/id/eprint/9387/1/Lewis_etal_2013_ArcticOcean_Copepod_OceanAcidification.pdf https://doi.org/10.1073/pnas.1315162110 |
geographic |
Arctic Arctic Ocean |
geographic_facet |
Arctic Arctic Ocean |
genre |
Arctic Arctic Arctic Ocean Ocean acidification Sea ice Zooplankton Copepods |
genre_facet |
Arctic Arctic Arctic Ocean Ocean acidification Sea ice Zooplankton Copepods |
op_relation |
https://researchonline.ljmu.ac.uk/id/eprint/9387/1/Lewis_etal_2013_ArcticOcean_Copepod_OceanAcidification.pdf Lewis, CN, Brown, KA, Edwards, LA, Cooper, G and Findlay, HS (2013) Sensitivity to ocean acidification parallels natural pCO2 gradients experienced by Arctic copepods under winter sea ice. Proceedings of the National Academy of Sciences, 110 (51). ISSN 1091-6490 doi:10.1073/pnas.1315162110 |
op_doi |
https://doi.org/10.1073/pnas.1315162110 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
110 |
container_issue |
51 |
container_start_page |
E4960 |
op_container_end_page |
E4967 |
_version_ |
1766298247715880960 |