Adult Antarctic krill proves resilient in a simulated high CO2 ocean
Antarctic krill (Euphausia superba) have a keystone role in the Southern Ocean, as the primary prey of Antarctic predators. Decreases in krill abundance could result in a major ecological regime shift, but there is limited information on how climate change may affect krill. Increasing anthropogenic...
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ftunivtasmania:oai:eprints.utas.edu.au:29003 2023-05-15T13:31:53+02:00 Adult Antarctic krill proves resilient in a simulated high CO2 ocean Ericson, JA Hellessey, NG Kawaguchi, S Nicol, S Nichols, PD Hoem, N Virtue, P 2018 application/pdf https://eprints.utas.edu.au/29003/ https://eprints.utas.edu.au/29003/1/129464%20-%20Adult%20Antarctic%20krill%20proves%20resilient%20in%20a%20simulated%20high%20CO2%20ocean.pdf en eng Nature Publishing Group https://eprints.utas.edu.au/29003/1/129464%20-%20Adult%20Antarctic%20krill%20proves%20resilient%20in%20a%20simulated%20high%20CO2%20ocean.pdf Ericson, JA, Hellessey, NG orcid:0000-0002-3053-8720 , Kawaguchi, S, Nicol, S, Nichols, PD, Hoem, N and Virtue, P orcid:0000-0002-9870-1256 2018 , 'Adult Antarctic krill proves resilient in a simulated high CO2 ocean' , Communications Biology, vol. 1 , pp. 1-9 , doi:10.1038/s42003-018-0195-3 <http://dx.doi.org/10.1038/s42003-018-0195-3>. ocean acidification CO2 krill Article PeerReviewed 2018 ftunivtasmania https://doi.org/10.1038/s42003-018-0195-3 2021-09-13T22:19:04Z Antarctic krill (Euphausia superba) have a keystone role in the Southern Ocean, as the primary prey of Antarctic predators. Decreases in krill abundance could result in a major ecological regime shift, but there is limited information on how climate change may affect krill. Increasing anthropogenic carbon dioxide (CO2) emissions are causing ocean acidification, as absorption of atmospheric CO2 in seawater alters ocean chemistry. Ocean acidification increases mortality and negatively affects physiological functioning in some marine invertebrates, and is predicted to occur most rapidly at high latitudes. Here we show that, in the laboratory, adult krill are able to survive, grow, store fat, mature, and maintain respiration rates when exposed to near-future ocean acidification (1000–2000 μatm pCO2) for one year. Despite differences in seawater pCO2 incubation conditions, adult krill are able to actively maintain the acid-base balance of their body fluids in near-future pCO2, which enhances their resilience to ocean acidification. Article in Journal/Newspaper Antarc* Antarctic Antarctic Krill Euphausia superba Ocean acidification Southern Ocean University of Tasmania: UTas ePrints Antarctic Southern Ocean Communications Biology 1 1 |
institution |
Open Polar |
collection |
University of Tasmania: UTas ePrints |
op_collection_id |
ftunivtasmania |
language |
English |
topic |
ocean acidification CO2 krill |
spellingShingle |
ocean acidification CO2 krill Ericson, JA Hellessey, NG Kawaguchi, S Nicol, S Nichols, PD Hoem, N Virtue, P Adult Antarctic krill proves resilient in a simulated high CO2 ocean |
topic_facet |
ocean acidification CO2 krill |
description |
Antarctic krill (Euphausia superba) have a keystone role in the Southern Ocean, as the primary prey of Antarctic predators. Decreases in krill abundance could result in a major ecological regime shift, but there is limited information on how climate change may affect krill. Increasing anthropogenic carbon dioxide (CO2) emissions are causing ocean acidification, as absorption of atmospheric CO2 in seawater alters ocean chemistry. Ocean acidification increases mortality and negatively affects physiological functioning in some marine invertebrates, and is predicted to occur most rapidly at high latitudes. Here we show that, in the laboratory, adult krill are able to survive, grow, store fat, mature, and maintain respiration rates when exposed to near-future ocean acidification (1000–2000 μatm pCO2) for one year. Despite differences in seawater pCO2 incubation conditions, adult krill are able to actively maintain the acid-base balance of their body fluids in near-future pCO2, which enhances their resilience to ocean acidification. |
format |
Article in Journal/Newspaper |
author |
Ericson, JA Hellessey, NG Kawaguchi, S Nicol, S Nichols, PD Hoem, N Virtue, P |
author_facet |
Ericson, JA Hellessey, NG Kawaguchi, S Nicol, S Nichols, PD Hoem, N Virtue, P |
author_sort |
Ericson, JA |
title |
Adult Antarctic krill proves resilient in a simulated high CO2 ocean |
title_short |
Adult Antarctic krill proves resilient in a simulated high CO2 ocean |
title_full |
Adult Antarctic krill proves resilient in a simulated high CO2 ocean |
title_fullStr |
Adult Antarctic krill proves resilient in a simulated high CO2 ocean |
title_full_unstemmed |
Adult Antarctic krill proves resilient in a simulated high CO2 ocean |
title_sort |
adult antarctic krill proves resilient in a simulated high co2 ocean |
publisher |
Nature Publishing Group |
publishDate |
2018 |
url |
https://eprints.utas.edu.au/29003/ https://eprints.utas.edu.au/29003/1/129464%20-%20Adult%20Antarctic%20krill%20proves%20resilient%20in%20a%20simulated%20high%20CO2%20ocean.pdf |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic Antarctic Krill Euphausia superba Ocean acidification Southern Ocean |
genre_facet |
Antarc* Antarctic Antarctic Krill Euphausia superba Ocean acidification Southern Ocean |
op_relation |
https://eprints.utas.edu.au/29003/1/129464%20-%20Adult%20Antarctic%20krill%20proves%20resilient%20in%20a%20simulated%20high%20CO2%20ocean.pdf Ericson, JA, Hellessey, NG orcid:0000-0002-3053-8720 , Kawaguchi, S, Nicol, S, Nichols, PD, Hoem, N and Virtue, P orcid:0000-0002-9870-1256 2018 , 'Adult Antarctic krill proves resilient in a simulated high CO2 ocean' , Communications Biology, vol. 1 , pp. 1-9 , doi:10.1038/s42003-018-0195-3 <http://dx.doi.org/10.1038/s42003-018-0195-3>. |
op_doi |
https://doi.org/10.1038/s42003-018-0195-3 |
container_title |
Communications Biology |
container_volume |
1 |
container_issue |
1 |
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1766021885800218624 |