Pteropod time-series from the NE Pacific
Abstract Mackas, D. L., and Galbraith, M. D. 2012. Pteropod time-series from the NE Pacific. – ICES Journal of Marine Science, 69: 448–459. Pteropods are marine planktonic molluscs that play important roles as broad-spectrum microplankton grazers, and as prey for fish, squid, and other plankton. Mos...
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Online Access: | http://dx.doi.org/10.1093/icesjms/fsr163 http://academic.oup.com/icesjms/article-pdf/69/3/448/29141609/fsr163.pdf |
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croxfordunivpr:10.1093/icesjms/fsr163 2024-10-06T13:51:52+00:00 Pteropod time-series from the NE Pacific Mackas, David L. Galbraith, Moira D. 2011 http://dx.doi.org/10.1093/icesjms/fsr163 http://academic.oup.com/icesjms/article-pdf/69/3/448/29141609/fsr163.pdf en eng Oxford University Press (OUP) ICES Journal of Marine Science volume 69, issue 3, page 448-459 ISSN 1095-9289 1054-3139 journal-article 2011 croxfordunivpr https://doi.org/10.1093/icesjms/fsr163 2024-09-10T04:15:47Z Abstract Mackas, D. L., and Galbraith, M. D. 2012. Pteropod time-series from the NE Pacific. – ICES Journal of Marine Science, 69: 448–459. Pteropods are marine planktonic molluscs that play important roles as broad-spectrum microplankton grazers, and as prey for fish, squid, and other plankton. Most species (e.g. Limacina, Clio) form aragonite shells. Others (e.g. Clione) lack shells as adults but are narrow-spectrum predators that rely on shelled pteropods as their primary or exclusive prey. The entire group is therefore potentially threatened by increasing ocean acidification, which in some regions (including the NE Pacific) is now approaching the solubility threshold for aragonite. Despite the grounds for ecological concern, there are few long-term time-series of pteropod populations. Time-series of pteropod biomass anomalies off the Vancouver Island continental margin and in the eastern Alaska Gyre (Line P) are analysed. Off both southern and northern Vancouver Island, Limacina (the dominant Subarctic thecate pteropod) has declined notably. Continental margin trends for Clione (the dominant athecate) are mostly positive but not significant. Occurrence rate and quantity of Clio (a subtropical species) have increased greatly. The shorter (13–14 year) Line P time-series as yet shows no overall trends for any of the species, although there are positive annual anomalies of Clio in the same years in both continental margin and oceanic regions. Article in Journal/Newspaper Ocean acidification Subarctic Alaska Oxford University Press Pacific ICES Journal of Marine Science 69 3 448 459 |
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Oxford University Press |
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description |
Abstract Mackas, D. L., and Galbraith, M. D. 2012. Pteropod time-series from the NE Pacific. – ICES Journal of Marine Science, 69: 448–459. Pteropods are marine planktonic molluscs that play important roles as broad-spectrum microplankton grazers, and as prey for fish, squid, and other plankton. Most species (e.g. Limacina, Clio) form aragonite shells. Others (e.g. Clione) lack shells as adults but are narrow-spectrum predators that rely on shelled pteropods as their primary or exclusive prey. The entire group is therefore potentially threatened by increasing ocean acidification, which in some regions (including the NE Pacific) is now approaching the solubility threshold for aragonite. Despite the grounds for ecological concern, there are few long-term time-series of pteropod populations. Time-series of pteropod biomass anomalies off the Vancouver Island continental margin and in the eastern Alaska Gyre (Line P) are analysed. Off both southern and northern Vancouver Island, Limacina (the dominant Subarctic thecate pteropod) has declined notably. Continental margin trends for Clione (the dominant athecate) are mostly positive but not significant. Occurrence rate and quantity of Clio (a subtropical species) have increased greatly. The shorter (13–14 year) Line P time-series as yet shows no overall trends for any of the species, although there are positive annual anomalies of Clio in the same years in both continental margin and oceanic regions. |
format |
Article in Journal/Newspaper |
author |
Mackas, David L. Galbraith, Moira D. |
spellingShingle |
Mackas, David L. Galbraith, Moira D. Pteropod time-series from the NE Pacific |
author_facet |
Mackas, David L. Galbraith, Moira D. |
author_sort |
Mackas, David L. |
title |
Pteropod time-series from the NE Pacific |
title_short |
Pteropod time-series from the NE Pacific |
title_full |
Pteropod time-series from the NE Pacific |
title_fullStr |
Pteropod time-series from the NE Pacific |
title_full_unstemmed |
Pteropod time-series from the NE Pacific |
title_sort |
pteropod time-series from the ne pacific |
publisher |
Oxford University Press (OUP) |
publishDate |
2011 |
url |
http://dx.doi.org/10.1093/icesjms/fsr163 http://academic.oup.com/icesjms/article-pdf/69/3/448/29141609/fsr163.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Ocean acidification Subarctic Alaska |
genre_facet |
Ocean acidification Subarctic Alaska |
op_source |
ICES Journal of Marine Science volume 69, issue 3, page 448-459 ISSN 1095-9289 1054-3139 |
op_doi |
https://doi.org/10.1093/icesjms/fsr163 |
container_title |
ICES Journal of Marine Science |
container_volume |
69 |
container_issue |
3 |
container_start_page |
448 |
op_container_end_page |
459 |
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1812180166072336384 |