Ice seals as sentinels for algal toxin presence in the Pacific Arctic and subarctic marine ecosystems
Abstract 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 , bearde...
Published in: | Marine Mammal Science |
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Online Access: | http://dx.doi.org/10.1111/mms.12822 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12822 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12822 |
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crwiley:10.1111/mms.12822 2024-06-23T07:50:05+00:00 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. Marine Mammal Commission National Institute of Environmental Health Sciences National Oceanic and Atmospheric Administration National Science Foundation 2021 http://dx.doi.org/10.1111/mms.12822 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12822 https://onlinelibrary.wiley.com/doi/full-xml/10.1111/mms.12822 en eng Wiley http://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ Marine Mammal Science volume 37, issue 4, page 1292-1308 ISSN 0824-0469 1748-7692 journal-article 2021 crwiley https://doi.org/10.1111/mms.12822 2024-06-11T04:44:48Z Abstract 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. Article in Journal/Newspaper Arctic bearded seal Bering Sea Climate change Erignathus barbatus Pacific Arctic Pusa hispida Subarctic Alaska Wiley Online Library Arctic Bering Sea Pacific Marine Mammal Science |
institution |
Open Polar |
collection |
Wiley Online Library |
op_collection_id |
crwiley |
language |
English |
description |
Abstract 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. |
author2 |
Marine Mammal Commission National Institute of Environmental Health Sciences National Oceanic and Atmospheric Administration National Science Foundation |
format |
Article in Journal/Newspaper |
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. |
spellingShingle |
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 |
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 |
Wiley |
publishDate |
2021 |
url |
http://dx.doi.org/10.1111/mms.12822 https://onlinelibrary.wiley.com/doi/pdf/10.1111/mms.12822 https://onlinelibrary.wiley.com/doi/full-xml/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 |
Marine Mammal Science volume 37, issue 4, page 1292-1308 ISSN 0824-0469 1748-7692 |
op_rights |
http://creativecommons.org/licenses/by-nc-nd/4.0/ http://creativecommons.org/licenses/by-nc-nd/4.0/ |
op_doi |
https://doi.org/10.1111/mms.12822 |
container_title |
Marine Mammal Science |
_version_ |
1802640854931734528 |