Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica
While ocean acidification (OA) is expected to have wide-ranging negative effects on marine species, organisms currently living in variable pH environments that expose them intermittently to pH values approaching those predicted for the future, may be better adapted to tolerate prolonged exposure to...
Published in: | ICES Journal of Marine Science |
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2016
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsw021 http://academic.oup.com/icesjms/article-pdf/74/4/1005/31246076/fsw021.pdf |
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croxfordunivpr:10.1093/icesjms/fsw021 2024-09-15T18:28:12+00:00 Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica Cooper, Helen L. Potts, Donald C. Paytan, Adina Plourde, Stéphane NOAA West Coast and Polar Regions Undersea Research Center NSF UCSC Committee on Research American Association of University Women, Friends of Long Marine Laboratory, Meyers Trust UCSC Department of Ecology and Evolutionary Biology 2016 http://dx.doi.org/10.1093/icesjms/fsw021 http://academic.oup.com/icesjms/article-pdf/74/4/1005/31246076/fsw021.pdf en eng Oxford University Press (OUP) https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model ICES Journal of Marine Science volume 74, issue 4, page 1005-1012 ISSN 1054-3139 1095-9289 journal-article 2016 croxfordunivpr https://doi.org/10.1093/icesjms/fsw021 2024-07-29T04:21:47Z While ocean acidification (OA) is expected to have wide-ranging negative effects on marine species, organisms currently living in variable pH environments that expose them intermittently to pH values approaching those predicted for the future, may be better adapted to tolerate prolonged exposure to high pCO2 levels caused by OA. Seasonal upwelling brings low pH water to the surface along the Pacific Coast of North America. In Monterey Bay, California Euphausia pacifica, a key species supporting a diverse multi-trophic-level ecosystem, currently experiences broad pCO2 and pH ranges due to both diel vertical migrations and seasonal upwelling. We determined tolerances of E. pacifica to prolonged exposure to pH levels predicted for 2100 by maintaining adults at two pCO2 levels (380 and 1200 µatm) for 2 months. Rates of survival and moulting were the same at both pCO2 levels. High pCO2 slowed growth in all size classes. In additional experiments to determine pCO2 threshold levels above which E. pacifica is adversely affected, survival was not affected down to pH 6.96 (6050 µatm), but declined rapidly at pH 6.92 (7228 µatm) and lower, with 100% mortality within 10 d at pH 6.89. Article in Journal/Newspaper Ocean acidification Oxford University Press ICES Journal of Marine Science 74 4 1005 1012 |
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Open Polar |
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Oxford University Press |
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croxfordunivpr |
language |
English |
description |
While ocean acidification (OA) is expected to have wide-ranging negative effects on marine species, organisms currently living in variable pH environments that expose them intermittently to pH values approaching those predicted for the future, may be better adapted to tolerate prolonged exposure to high pCO2 levels caused by OA. Seasonal upwelling brings low pH water to the surface along the Pacific Coast of North America. In Monterey Bay, California Euphausia pacifica, a key species supporting a diverse multi-trophic-level ecosystem, currently experiences broad pCO2 and pH ranges due to both diel vertical migrations and seasonal upwelling. We determined tolerances of E. pacifica to prolonged exposure to pH levels predicted for 2100 by maintaining adults at two pCO2 levels (380 and 1200 µatm) for 2 months. Rates of survival and moulting were the same at both pCO2 levels. High pCO2 slowed growth in all size classes. In additional experiments to determine pCO2 threshold levels above which E. pacifica is adversely affected, survival was not affected down to pH 6.96 (6050 µatm), but declined rapidly at pH 6.92 (7228 µatm) and lower, with 100% mortality within 10 d at pH 6.89. |
author2 |
Plourde, Stéphane NOAA West Coast and Polar Regions Undersea Research Center NSF UCSC Committee on Research American Association of University Women, Friends of Long Marine Laboratory, Meyers Trust UCSC Department of Ecology and Evolutionary Biology |
format |
Article in Journal/Newspaper |
author |
Cooper, Helen L. Potts, Donald C. Paytan, Adina |
spellingShingle |
Cooper, Helen L. Potts, Donald C. Paytan, Adina Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica |
author_facet |
Cooper, Helen L. Potts, Donald C. Paytan, Adina |
author_sort |
Cooper, Helen L. |
title |
Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica |
title_short |
Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica |
title_full |
Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica |
title_fullStr |
Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica |
title_full_unstemmed |
Effects of elevated pCO2 on the survival, growth, and moulting of the Pacific krill species, Euphausia pacifica |
title_sort |
effects of elevated pco2 on the survival, growth, and moulting of the pacific krill species, euphausia pacifica |
publisher |
Oxford University Press (OUP) |
publishDate |
2016 |
url |
http://dx.doi.org/10.1093/icesjms/fsw021 http://academic.oup.com/icesjms/article-pdf/74/4/1005/31246076/fsw021.pdf |
genre |
Ocean acidification |
genre_facet |
Ocean acidification |
op_source |
ICES Journal of Marine Science volume 74, issue 4, page 1005-1012 ISSN 1054-3139 1095-9289 |
op_rights |
https://academic.oup.com/journals/pages/open_access/funder_policies/chorus/standard_publication_model |
op_doi |
https://doi.org/10.1093/icesjms/fsw021 |
container_title |
ICES Journal of Marine Science |
container_volume |
74 |
container_issue |
4 |
container_start_page |
1005 |
op_container_end_page |
1012 |
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1810469535186157568 |