Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals
Mercury contamination of oceans is prevalent worldwide and methylmercury concentrations in the mesopelagic zone (200–1000 m) are increasing more rapidly than in surface waters. Yet mercury bioaccumulation in mesopelagic predators has been understudied. Northern elephant seals ( Mirounga angustirostr...
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fttriple:oai:gotriple.eu:50|dedup_wf_001::e9e9bb97075f7a92d5bda2bb744d7480 2023-05-15T16:05:39+02:00 Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals Sarah H. Peterson Daniel P. Costa Joshua T. Ackerman 2015-07-07 https://doi.org/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.0710 https://pubs.er.usgs.gov/publication/70148606 http://www.ncbi.nlm.nih.gov/pubmed/26085591 http://europepmc.org/articles/PMC4590481 https://rspb.royalsocietypublishing.org/content/282/1810/20150710.figures-only https://rspb.royalsocietypublishing.org/content/282/1810/20150710.abstract https://academic.microsoft.com/#/detail/2265241013 https://europepmc.org/articles/PMC4590481/ undefined unknown (:unav) https://dx.doi.org/10.1098/rspb.2015.0710 http://dx.doi.org/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.0710 https://pubs.er.usgs.gov/publication/70148606 http://www.ncbi.nlm.nih.gov/pubmed/26085591 http://europepmc.org/articles/PMC4590481 https://rspb.royalsocietypublishing.org/content/282/1810/20150710.figures-only https://rspb.royalsocietypublishing.org/content/282/1810/20150710.abstract https://academic.microsoft.com/#/detail/2265241013 https://europepmc.org/articles/PMC4590481/ undefined 10.1098/rspb.2015.0710 26085591 2265241013 oai:pubmedcentral.nih.gov:4590481 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 openaire____::1256f046-bf1f-4afc-8b47-d0b147148b18 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::a941ba918ee7dd850619e823995f4257 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::806360c771262b4d6770e7cdf04b5c5a General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine Research Articles envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2015 fttriple https://doi.org/10.1098/rspb.2015.0710 2023-01-22T17:14:48Z Mercury contamination of oceans is prevalent worldwide and methylmercury concentrations in the mesopelagic zone (200–1000 m) are increasing more rapidly than in surface waters. Yet mercury bioaccumulation in mesopelagic predators has been understudied. Northern elephant seals ( Mirounga angustirostris ) biannually travel thousands of kilometres to forage within coastal and open-ocean regions of the northeast Pacific Ocean. We coupled satellite telemetry, diving behaviour and stable isotopes (carbon and nitrogen) from 77 adult females, and showed that variability among individuals in foraging location, diving depth and δ 13 C values were correlated with mercury concentrations in blood and muscle. We identified three clusters of foraging strategies, and these resulted in substantially different mercury concentrations: (i) deeper-diving and offshore-foraging seals had the greatest mercury concentrations, (ii) shallower-diving and offshore-foraging seals had intermediate levels, and (iii) coastal and more northerly foraging seals had the lowest mercury concentrations. Additionally, mercury concentrations were lower at the end of the seven-month-long foraging trip ( n = 31) than after the two-month- long post-breeding trip ( n = 46). Our results indicate that foraging behaviour influences mercury exposure and mesopelagic predators foraging in the northeast Pacific Ocean may be at high risk for mercury bioaccumulation. Article in Journal/Newspaper Elephant Seals Unknown Pacific Proceedings of the Royal Society B: Biological Sciences 282 1810 20150710 |
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Open Polar |
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language |
unknown |
topic |
General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine Research Articles envir geo |
spellingShingle |
General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine Research Articles envir geo Sarah H. Peterson Daniel P. Costa Joshua T. Ackerman Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
topic_facet |
General Biochemistry Genetics and Molecular Biology General Immunology and Microbiology General Agricultural and Biological Sciences General Environmental Science General Medicine Research Articles envir geo |
description |
Mercury contamination of oceans is prevalent worldwide and methylmercury concentrations in the mesopelagic zone (200–1000 m) are increasing more rapidly than in surface waters. Yet mercury bioaccumulation in mesopelagic predators has been understudied. Northern elephant seals ( Mirounga angustirostris ) biannually travel thousands of kilometres to forage within coastal and open-ocean regions of the northeast Pacific Ocean. We coupled satellite telemetry, diving behaviour and stable isotopes (carbon and nitrogen) from 77 adult females, and showed that variability among individuals in foraging location, diving depth and δ 13 C values were correlated with mercury concentrations in blood and muscle. We identified three clusters of foraging strategies, and these resulted in substantially different mercury concentrations: (i) deeper-diving and offshore-foraging seals had the greatest mercury concentrations, (ii) shallower-diving and offshore-foraging seals had intermediate levels, and (iii) coastal and more northerly foraging seals had the lowest mercury concentrations. Additionally, mercury concentrations were lower at the end of the seven-month-long foraging trip ( n = 31) than after the two-month- long post-breeding trip ( n = 46). Our results indicate that foraging behaviour influences mercury exposure and mesopelagic predators foraging in the northeast Pacific Ocean may be at high risk for mercury bioaccumulation. |
format |
Article in Journal/Newspaper |
author |
Sarah H. Peterson Daniel P. Costa Joshua T. Ackerman |
author_facet |
Sarah H. Peterson Daniel P. Costa Joshua T. Ackerman |
author_sort |
Sarah H. Peterson |
title |
Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
title_short |
Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
title_full |
Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
title_fullStr |
Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
title_full_unstemmed |
Marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
title_sort |
marine foraging ecology influences mercury bioaccumulation in deep-diving northern elephant seals |
publisher |
(:unav) |
publishDate |
2015 |
url |
https://doi.org/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.0710 https://pubs.er.usgs.gov/publication/70148606 http://www.ncbi.nlm.nih.gov/pubmed/26085591 http://europepmc.org/articles/PMC4590481 https://rspb.royalsocietypublishing.org/content/282/1810/20150710.figures-only https://rspb.royalsocietypublishing.org/content/282/1810/20150710.abstract https://academic.microsoft.com/#/detail/2265241013 https://europepmc.org/articles/PMC4590481/ |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Elephant Seals |
genre_facet |
Elephant Seals |
op_source |
10.1098/rspb.2015.0710 26085591 2265241013 oai:pubmedcentral.nih.gov:4590481 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 openaire____::1256f046-bf1f-4afc-8b47-d0b147148b18 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::a941ba918ee7dd850619e823995f4257 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|opendoar____::eda80a3d5b344bc40f3bc04f65b7a357 10|opendoar____::8b6dd7db9af49e67306feb59a8bdc52c 10|openaire____::806360c771262b4d6770e7cdf04b5c5a |
op_relation |
https://dx.doi.org/10.1098/rspb.2015.0710 http://dx.doi.org/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/pdf/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/full-xml/10.1098/rspb.2015.0710 https://royalsocietypublishing.org/doi/10.1098/rspb.2015.0710 https://pubs.er.usgs.gov/publication/70148606 http://www.ncbi.nlm.nih.gov/pubmed/26085591 http://europepmc.org/articles/PMC4590481 https://rspb.royalsocietypublishing.org/content/282/1810/20150710.figures-only https://rspb.royalsocietypublishing.org/content/282/1810/20150710.abstract https://academic.microsoft.com/#/detail/2265241013 https://europepmc.org/articles/PMC4590481/ |
op_rights |
undefined |
op_doi |
https://doi.org/10.1098/rspb.2015.0710 |
container_title |
Proceedings of the Royal Society B: Biological Sciences |
container_volume |
282 |
container_issue |
1810 |
container_start_page |
20150710 |
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1766401547644698624 |