The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2
As anthropogenic activities directly and indirectly increase carbon dioxide (CO2) and decrease oxygen (O2) concentrations in the ocean system, it becomes important to understand how different populations of marine animals will respond. Water that is naturally low in pH, with a high concentration of...
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Copernicus Publications
2016
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ftnonlinearchiv:oai:noa.gwlb.de:cop_mods_00011194 2023-05-15T17:31:31+02:00 The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 Maas, Amy E. Lawson, Gareth L. Wang, Zhaohui Aleck 2016-11 electronic https://doi.org/10.5194/bg-13-6191-2016 https://noa.gwlb.de/receive/cop_mods_00011194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011151/bg-13-6191-2016.pdf https://bg.copernicus.org/articles/13/6191/2016/bg-13-6191-2016.pdf eng eng Copernicus Publications Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-13-6191-2016 https://noa.gwlb.de/receive/cop_mods_00011194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011151/bg-13-6191-2016.pdf https://bg.copernicus.org/articles/13/6191/2016/bg-13-6191-2016.pdf uneingeschränkt info:eu-repo/semantics/openAccess article Verlagsveröffentlichung article Text doc-type:article 2016 ftnonlinearchiv https://doi.org/10.5194/bg-13-6191-2016 2022-02-08T22:56:37Z As anthropogenic activities directly and indirectly increase carbon dioxide (CO2) and decrease oxygen (O2) concentrations in the ocean system, it becomes important to understand how different populations of marine animals will respond. Water that is naturally low in pH, with a high concentration of carbon dioxide (hypercapnia) and a low concentration of oxygen, occurs at shallow depths (200–500 m) in the North Pacific Ocean, whereas similar conditions are absent throughout the upper water column in the North Atlantic. This contrasting hydrography provides a natural experiment to explore whether differences in environment cause populations of cosmopolitan pelagic calcifiers, specifically the aragonitic-shelled pteropods, to have a different physiological response when exposed to hypercapnia and low O2. Using closed-chamber end-point respiration experiments, eight species of pteropods from the two ocean basins were exposed to high CO2 ( ∼ 800 µatm) while six species were also exposed to moderately low O2 (48 % saturated, or ∼ 130 µmol kg−1) and a combined treatment of low O2/high CO2. None of the species tested showed a change in metabolic rate in response to high CO2 alone. Of those species tested for an effect of O2, only Limacina retroversa from the Atlantic showed a response to the combined treatment, resulting in a reduction in metabolic rate. Our results suggest that pteropods have mechanisms for coping with short-term CO2 exposure and that there can be interactive effects between stressors on the physiology of these open ocean organisms that correlate with natural exposure to low O2 and high CO2. These are considerations that should be taken into account in projections of organismal sensitivity to future ocean conditions. Article in Journal/Newspaper North Atlantic Niedersächsisches Online-Archiv NOA Pacific Biogeosciences 13 22 6191 6210 |
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Niedersächsisches Online-Archiv NOA |
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English |
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article Verlagsveröffentlichung |
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article Verlagsveröffentlichung Maas, Amy E. Lawson, Gareth L. Wang, Zhaohui Aleck The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 |
topic_facet |
article Verlagsveröffentlichung |
description |
As anthropogenic activities directly and indirectly increase carbon dioxide (CO2) and decrease oxygen (O2) concentrations in the ocean system, it becomes important to understand how different populations of marine animals will respond. Water that is naturally low in pH, with a high concentration of carbon dioxide (hypercapnia) and a low concentration of oxygen, occurs at shallow depths (200–500 m) in the North Pacific Ocean, whereas similar conditions are absent throughout the upper water column in the North Atlantic. This contrasting hydrography provides a natural experiment to explore whether differences in environment cause populations of cosmopolitan pelagic calcifiers, specifically the aragonitic-shelled pteropods, to have a different physiological response when exposed to hypercapnia and low O2. Using closed-chamber end-point respiration experiments, eight species of pteropods from the two ocean basins were exposed to high CO2 ( ∼ 800 µatm) while six species were also exposed to moderately low O2 (48 % saturated, or ∼ 130 µmol kg−1) and a combined treatment of low O2/high CO2. None of the species tested showed a change in metabolic rate in response to high CO2 alone. Of those species tested for an effect of O2, only Limacina retroversa from the Atlantic showed a response to the combined treatment, resulting in a reduction in metabolic rate. Our results suggest that pteropods have mechanisms for coping with short-term CO2 exposure and that there can be interactive effects between stressors on the physiology of these open ocean organisms that correlate with natural exposure to low O2 and high CO2. These are considerations that should be taken into account in projections of organismal sensitivity to future ocean conditions. |
format |
Article in Journal/Newspaper |
author |
Maas, Amy E. Lawson, Gareth L. Wang, Zhaohui Aleck |
author_facet |
Maas, Amy E. Lawson, Gareth L. Wang, Zhaohui Aleck |
author_sort |
Maas, Amy E. |
title |
The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 |
title_short |
The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 |
title_full |
The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 |
title_fullStr |
The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 |
title_full_unstemmed |
The metabolic response of thecosome pteropods from the North Atlantic and North Pacific oceans to high CO2 and low O2 |
title_sort |
metabolic response of thecosome pteropods from the north atlantic and north pacific oceans to high co2 and low o2 |
publisher |
Copernicus Publications |
publishDate |
2016 |
url |
https://doi.org/10.5194/bg-13-6191-2016 https://noa.gwlb.de/receive/cop_mods_00011194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011151/bg-13-6191-2016.pdf https://bg.copernicus.org/articles/13/6191/2016/bg-13-6191-2016.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
North Atlantic |
genre_facet |
North Atlantic |
op_relation |
Biogeosciences -- http://www.bibliothek.uni-regensburg.de/ezeit/?2158181 -- http://www.copernicus.org/EGU/bg/bg.html -- 1726-4189 https://doi.org/10.5194/bg-13-6191-2016 https://noa.gwlb.de/receive/cop_mods_00011194 https://noa.gwlb.de/servlets/MCRFileNodeServlet/cop_derivate_00011151/bg-13-6191-2016.pdf https://bg.copernicus.org/articles/13/6191/2016/bg-13-6191-2016.pdf |
op_rights |
uneingeschränkt info:eu-repo/semantics/openAccess |
op_doi |
https://doi.org/10.5194/bg-13-6191-2016 |
container_title |
Biogeosciences |
container_volume |
13 |
container_issue |
22 |
container_start_page |
6191 |
op_container_end_page |
6210 |
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1766129145945784320 |