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...
Published in: | Proceedings of the National Academy of Sciences |
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Digital Commons @ University of South Florida
2008
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ftusouthflorida:oai:digitalcommons.usf.edu:msc_facpub-3359 2023-07-30T04:06:00+02:00 Synergistic Effects of Climate-related Variables Suggest Future Physiological Impairment in a Top Oceanic Predator Rosa, Rui Seibel, Brad A. 2008-01-01T08:00:00Z https://digitalcommons.usf.edu/msc_facpub/2385 https://doi.org/10.1073/pnas.0806886105 unknown Digital Commons @ University of South Florida https://digitalcommons.usf.edu/msc_facpub/2385 doi:10.1073/pnas.0806886105 https://doi.org/10.1073/pnas.0806886105 Marine Science Faculty Publications global warming hypoxia jumbo or Humboldt squid ocean acidification oxygen minimum layer Life Sciences article 2008 ftusouthflorida https://doi.org/10.1073/pnas.0806886105 2023-07-13T21:07:30Z 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. Article in Journal/Newspaper Ocean acidification University of South Florida St. Petersburg: Digital USFSP Pacific Proceedings of the National Academy of Sciences 105 52 20776 20780 |
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Open Polar |
collection |
University of South Florida St. Petersburg: Digital USFSP |
op_collection_id |
ftusouthflorida |
language |
unknown |
topic |
global warming hypoxia jumbo or Humboldt squid ocean acidification oxygen minimum layer Life Sciences |
spellingShingle |
global warming hypoxia jumbo or Humboldt squid ocean acidification oxygen minimum layer Life Sciences Rosa, Rui Seibel, Brad A. Synergistic Effects of Climate-related Variables Suggest Future Physiological Impairment in a Top Oceanic Predator |
topic_facet |
global warming hypoxia jumbo or Humboldt squid ocean acidification oxygen minimum layer Life 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 |
Article in Journal/Newspaper |
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 |
Digital Commons @ University of South Florida |
publishDate |
2008 |
url |
https://digitalcommons.usf.edu/msc_facpub/2385 https://doi.org/10.1073/pnas.0806886105 |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
Marine Science Faculty Publications |
op_relation |
https://digitalcommons.usf.edu/msc_facpub/2385 doi:10.1073/pnas.0806886105 https://doi.org/10.1073/pnas.0806886105 |
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_ |
1772818360874041344 |