Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator
By the end of this century, anthropogenic carbon dioxide (CO2) emissions are expected to decrease the surface ocean pH by as much as 0.3 unit. At the same time, the ocean is expected to warm with an associated expansion of the oxygen minimum layer (OML). Thus, there is a growing demand to understand...
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ftpubmed:oai:pubmedcentral.nih.gov:2634909 2023-05-15T17:50:27+02:00 Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator Rosa, Rui Seibel, Brad A. 2008-12-30 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634909 http://www.ncbi.nlm.nih.gov/pubmed/19075232 https://doi.org/10.1073/pnas.0806886105 en eng National Academy of Sciences http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634909 http://www.ncbi.nlm.nih.gov/pubmed/19075232 http://dx.doi.org/10.1073/pnas.0806886105 © 2008 by The National Academy of Sciences of the USA Biological Sciences Text 2008 ftpubmed https://doi.org/10.1073/pnas.0806886105 2013-09-02T10:27:25Z By the end of this century, anthropogenic carbon dioxide (CO2) emissions are expected to decrease the surface ocean pH by as much as 0.3 unit. At the same time, the ocean is expected to warm with an associated expansion of the oxygen minimum layer (OML). Thus, there is a growing demand to understand the response of the marine biota to these global changes. We show that ocean acidification will substantially depress metabolic rates (31%) and activity levels (45%) in the jumbo squid, Dosidicus gigas, a top predator in the Eastern Pacific. This effect is exacerbated by high temperature. Reduced aerobic and locomotory scope in warm, high-CO2 surface waters will presumably impair predator–prey interactions with cascading consequences for growth, reproduction, and survival. Moreover, as the OML shoals, squids will have to retreat to these shallower, less hospitable, waters at night to feed and repay any oxygen debt that accumulates during their diel vertical migration into the OML. Thus, we demonstrate that, in the absence of adaptation or horizontal migration, the synergism between ocean acidification, global warming, and expanding hypoxia will compress the habitable depth range of the species. These interactions may ultimately define the long-term fate of this commercially and ecologically important predator. Text Ocean acidification PubMed Central (PMC) Pacific Proceedings of the National Academy of Sciences 105 52 20776 20780 |
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Biological Sciences |
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Biological Sciences Rosa, Rui Seibel, Brad A. Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
topic_facet |
Biological Sciences |
description |
By the end of this century, anthropogenic carbon dioxide (CO2) emissions are expected to decrease the surface ocean pH by as much as 0.3 unit. At the same time, the ocean is expected to warm with an associated expansion of the oxygen minimum layer (OML). Thus, there is a growing demand to understand the response of the marine biota to these global changes. We show that ocean acidification will substantially depress metabolic rates (31%) and activity levels (45%) in the jumbo squid, Dosidicus gigas, a top predator in the Eastern Pacific. This effect is exacerbated by high temperature. Reduced aerobic and locomotory scope in warm, high-CO2 surface waters will presumably impair predator–prey interactions with cascading consequences for growth, reproduction, and survival. Moreover, as the OML shoals, squids will have to retreat to these shallower, less hospitable, waters at night to feed and repay any oxygen debt that accumulates during their diel vertical migration into the OML. Thus, we demonstrate that, in the absence of adaptation or horizontal migration, the synergism between ocean acidification, global warming, and expanding hypoxia will compress the habitable depth range of the species. These interactions may ultimately define the long-term fate of this commercially and ecologically important predator. |
format |
Text |
author |
Rosa, Rui Seibel, Brad A. |
author_facet |
Rosa, Rui Seibel, Brad A. |
author_sort |
Rosa, Rui |
title |
Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
title_short |
Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
title_full |
Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
title_fullStr |
Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
title_full_unstemmed |
Synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
title_sort |
synergistic effects of climate-related variables suggest future physiological impairment in a top oceanic predator |
publisher |
National Academy of Sciences |
publishDate |
2008 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634909 http://www.ncbi.nlm.nih.gov/pubmed/19075232 https://doi.org/10.1073/pnas.0806886105 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC2634909 http://www.ncbi.nlm.nih.gov/pubmed/19075232 http://dx.doi.org/10.1073/pnas.0806886105 |
op_rights |
© 2008 by The National Academy of Sciences of the USA |
op_doi |
https://doi.org/10.1073/pnas.0806886105 |
container_title |
Proceedings of the National Academy of Sciences |
container_volume |
105 |
container_issue |
52 |
container_start_page |
20776 |
op_container_end_page |
20780 |
_version_ |
1766157200369123328 |