Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems
Domoic acid (DA) and saxitoxin (STX)‐producing algae are present in Alaskan seas, presenting exposure risks to marine mammals that may be increasing due to climate change. To investigate potential increases in exposure risks to four pagophilic ice seal species (Erignathus barbatus, bearded seals; Pu...
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ftpubmed:oai:pubmedcentral.nih.gov:8518847 2023-05-15T14:57:51+02:00 Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems Hendrix, Alicia M. Lefebvre, Kathi A. Quakenbush, Lori Bryan, Anna Stimmelmayr, Raphaela Sheffield, Gay Wisswaesser, Gabriel Willis, Maryjean L. Bowers, Emily K. Kendrick, Preston Frame, Elizabeth Burbacher, Thomas Marcinek, David J. 2021-05-03 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8518847/ https://doi.org/10.1111/mms.12822 en eng John Wiley & Sons, Inc. http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8518847/ http://dx.doi.org/10.1111/mms.12822 © 2021 The Authors. Marine Mammal Science published by Wiley Periodicals LLC on behalf of Society for Marine Mammalogy. This article has been contributed to by US Government employees and their work is in the public domain in the USA. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. PDM CC-BY-NC-ND Mar Mamm Sci Articles Text 2021 ftpubmed https://doi.org/10.1111/mms.12822 2021-10-24T00:35:29Z Domoic acid (DA) and saxitoxin (STX)‐producing algae are present in Alaskan seas, presenting exposure risks to marine mammals that may be increasing due to climate change. To investigate potential increases in exposure risks to four pagophilic ice seal species (Erignathus barbatus, bearded seals; Pusa hispida, ringed seals; Phoca largha, spotted seals; and Histriophoca fasciata, ribbon seals), this study analyzed samples from 998 seals harvested for subsistence purposes in western and northern Alaska during 2005–2019 for DA and STX. Both toxins were detected in bearded, ringed, and spotted seals, though no clinical signs of acute neurotoxicity were reported in harvested seals. Bearded seals had the highest prevalence of each toxin, followed by ringed seals. Bearded seal stomach content samples from the Bering Sea showed a significant increase in DA prevalence with time (logistic regression, p = .004). These findings are consistent with predicted northward expansion of DA‐producing algae. A comparison of paired samples taken from the stomachs and colons of 15 seals found that colon content consistently had higher concentrations of both toxins. Collectively, these results suggest that ice seals, particularly bearded seals (benthic foraging specialists), are suitable sentinels for monitoring HAB prevalence in the Pacific Arctic and subarctic. Text Arctic bearded seal Bering Sea Climate change Erignathus barbatus Pacific Arctic Pusa hispida Subarctic Alaska PubMed Central (PMC) Arctic Bering Sea Pacific Marine Mammal Science 37 4 1292 1308 |
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Articles Hendrix, Alicia M. Lefebvre, Kathi A. Quakenbush, Lori Bryan, Anna Stimmelmayr, Raphaela Sheffield, Gay Wisswaesser, Gabriel Willis, Maryjean L. Bowers, Emily K. Kendrick, Preston Frame, Elizabeth Burbacher, Thomas Marcinek, David J. Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems |
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description |
Domoic acid (DA) and saxitoxin (STX)‐producing algae are present in Alaskan seas, presenting exposure risks to marine mammals that may be increasing due to climate change. To investigate potential increases in exposure risks to four pagophilic ice seal species (Erignathus barbatus, bearded seals; Pusa hispida, ringed seals; Phoca largha, spotted seals; and Histriophoca fasciata, ribbon seals), this study analyzed samples from 998 seals harvested for subsistence purposes in western and northern Alaska during 2005–2019 for DA and STX. Both toxins were detected in bearded, ringed, and spotted seals, though no clinical signs of acute neurotoxicity were reported in harvested seals. Bearded seals had the highest prevalence of each toxin, followed by ringed seals. Bearded seal stomach content samples from the Bering Sea showed a significant increase in DA prevalence with time (logistic regression, p = .004). These findings are consistent with predicted northward expansion of DA‐producing algae. A comparison of paired samples taken from the stomachs and colons of 15 seals found that colon content consistently had higher concentrations of both toxins. Collectively, these results suggest that ice seals, particularly bearded seals (benthic foraging specialists), are suitable sentinels for monitoring HAB prevalence in the Pacific Arctic and subarctic. |
format |
Text |
author |
Hendrix, Alicia M. Lefebvre, Kathi A. Quakenbush, Lori Bryan, Anna Stimmelmayr, Raphaela Sheffield, Gay Wisswaesser, Gabriel Willis, Maryjean L. Bowers, Emily K. Kendrick, Preston Frame, Elizabeth Burbacher, Thomas Marcinek, David J. |
author_facet |
Hendrix, Alicia M. Lefebvre, Kathi A. Quakenbush, Lori Bryan, Anna Stimmelmayr, Raphaela Sheffield, Gay Wisswaesser, Gabriel Willis, Maryjean L. Bowers, Emily K. Kendrick, Preston Frame, Elizabeth Burbacher, Thomas Marcinek, David J. |
author_sort |
Hendrix, Alicia M. |
title |
Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems |
title_short |
Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems |
title_full |
Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems |
title_fullStr |
Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems |
title_full_unstemmed |
Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems |
title_sort |
ice seals as sentinels for algal toxin presence in the pacific arctic and subarctic marine ecosystems |
publisher |
John Wiley & Sons, Inc. |
publishDate |
2021 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8518847/ https://doi.org/10.1111/mms.12822 |
geographic |
Arctic Bering Sea Pacific |
geographic_facet |
Arctic Bering Sea Pacific |
genre |
Arctic bearded seal Bering Sea Climate change Erignathus barbatus Pacific Arctic Pusa hispida Subarctic Alaska |
genre_facet |
Arctic bearded seal Bering Sea Climate change Erignathus barbatus Pacific Arctic Pusa hispida Subarctic Alaska |
op_source |
Mar Mamm Sci |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC8518847/ http://dx.doi.org/10.1111/mms.12822 |
op_rights |
© 2021 The Authors. Marine Mammal Science published by Wiley Periodicals LLC on behalf of Society for Marine Mammalogy. This article has been contributed to by US Government employees and their work is in the public domain in the USA. https://creativecommons.org/licenses/by-nc-nd/4.0/This is an open access article under the terms of the http://creativecommons.org/licenses/by-nc-nd/4.0/ (https://creativecommons.org/licenses/by-nc-nd/4.0/) License, which permits use and distribution in any medium, provided the original work is properly cited, the use is non‐commercial and no modifications or adaptations are made. |
op_rightsnorm |
PDM CC-BY-NC-ND |
op_doi |
https://doi.org/10.1111/mms.12822 |
container_title |
Marine Mammal Science |
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37 |
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4 |
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1292 |
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1308 |
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