River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada
Spatial patterns of bioaccumulated mercury were evaluated in coastal marine food webs of east Hudson Bay and east James Bay in the boreal subarctic of Canada. Two marine species, blue mussels (Mytilus edulis) and common eider ducks (Somateria mollissima) that consume mussels, were collected by a reg...
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Canadian Science Publishing
2024
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ftdoajarticles:oai:doaj.org/article:7e244f7c2e344fa6b68d22495188d54f 2024-09-15T18:01:55+00:00 River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada John Chételat Joel P. Heath Lucassie Arragutainaq John Lameboy Christine McClelland Raymond Mickpegak 2024-01-01T00:00:00Z https://doi.org/10.1139/facets-2023-0121 https://doaj.org/article/7e244f7c2e344fa6b68d22495188d54f EN eng Canadian Science Publishing https://facetsjournal.com/doi/10.1139/facets-2023-0121 https://doaj.org/toc/2371-1671 doi:10.1139/facets-2023-0121 2371-1671 https://doaj.org/article/7e244f7c2e344fa6b68d22495188d54f FACETS, Vol 9, Iss , Pp 1-13 (2024) methylmercury mercury stable isotopes estuary benthic hydroelectric development Education L Science Q article 2024 ftdoajarticles https://doi.org/10.1139/facets-2023-0121 2024-08-05T17:49:40Z Spatial patterns of bioaccumulated mercury were evaluated in coastal marine food webs of east Hudson Bay and east James Bay in the boreal subarctic of Canada. Two marine species, blue mussels (Mytilus edulis) and common eider ducks (Somateria mollissima) that consume mussels, were collected by a regional community-based monitoring network established in five communities. Stable isotope tracers (carbon, nitrogen, sulfur, and mercury) were measured to evaluate environmental drivers of mercury spatial patterns. Mercury concentrations of blue mussels and common eiders were twofold and fivefold higher, respectively, on the James Bay coast near the community of Chisasibi compared to sites in east Hudson Bay. Liver and muscle mercury concentrations of eiders from James Bay are among the highest values reported for the circumpolar subarctic and Arctic. Multiple lines of evidence (mercury spatial patterns, crustal elements in blue mussels, and mercury isotope values of common eiders) suggest elevated mercury in the coastal food web of east James Bay may be due to mercury loading from the La Grande River, which drains one of the largest hydroelectric developments in the world. These findings highlight the importance of further research on environmental processes linking large rivers to mercury bioaccumulation in northern coastal food webs. Article in Journal/Newspaper Chisasibi Common Eider Hudson Bay La Grande River Somateria mollissima Subarctic James Bay Directory of Open Access Journals: DOAJ Articles FACETS 9 1 13 |
institution |
Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
op_collection_id |
ftdoajarticles |
language |
English |
topic |
methylmercury mercury stable isotopes estuary benthic hydroelectric development Education L Science Q |
spellingShingle |
methylmercury mercury stable isotopes estuary benthic hydroelectric development Education L Science Q John Chételat Joel P. Heath Lucassie Arragutainaq John Lameboy Christine McClelland Raymond Mickpegak River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada |
topic_facet |
methylmercury mercury stable isotopes estuary benthic hydroelectric development Education L Science Q |
description |
Spatial patterns of bioaccumulated mercury were evaluated in coastal marine food webs of east Hudson Bay and east James Bay in the boreal subarctic of Canada. Two marine species, blue mussels (Mytilus edulis) and common eider ducks (Somateria mollissima) that consume mussels, were collected by a regional community-based monitoring network established in five communities. Stable isotope tracers (carbon, nitrogen, sulfur, and mercury) were measured to evaluate environmental drivers of mercury spatial patterns. Mercury concentrations of blue mussels and common eiders were twofold and fivefold higher, respectively, on the James Bay coast near the community of Chisasibi compared to sites in east Hudson Bay. Liver and muscle mercury concentrations of eiders from James Bay are among the highest values reported for the circumpolar subarctic and Arctic. Multiple lines of evidence (mercury spatial patterns, crustal elements in blue mussels, and mercury isotope values of common eiders) suggest elevated mercury in the coastal food web of east James Bay may be due to mercury loading from the La Grande River, which drains one of the largest hydroelectric developments in the world. These findings highlight the importance of further research on environmental processes linking large rivers to mercury bioaccumulation in northern coastal food webs. |
format |
Article in Journal/Newspaper |
author |
John Chételat Joel P. Heath Lucassie Arragutainaq John Lameboy Christine McClelland Raymond Mickpegak |
author_facet |
John Chételat Joel P. Heath Lucassie Arragutainaq John Lameboy Christine McClelland Raymond Mickpegak |
author_sort |
John Chételat |
title |
River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada |
title_short |
River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada |
title_full |
River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada |
title_fullStr |
River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada |
title_full_unstemmed |
River influence on mercury bioaccumulation in the coastal food web of Eeyou Istchee, James Bay, Canada |
title_sort |
river influence on mercury bioaccumulation in the coastal food web of eeyou istchee, james bay, canada |
publisher |
Canadian Science Publishing |
publishDate |
2024 |
url |
https://doi.org/10.1139/facets-2023-0121 https://doaj.org/article/7e244f7c2e344fa6b68d22495188d54f |
genre |
Chisasibi Common Eider Hudson Bay La Grande River Somateria mollissima Subarctic James Bay |
genre_facet |
Chisasibi Common Eider Hudson Bay La Grande River Somateria mollissima Subarctic James Bay |
op_source |
FACETS, Vol 9, Iss , Pp 1-13 (2024) |
op_relation |
https://facetsjournal.com/doi/10.1139/facets-2023-0121 https://doaj.org/toc/2371-1671 doi:10.1139/facets-2023-0121 2371-1671 https://doaj.org/article/7e244f7c2e344fa6b68d22495188d54f |
op_doi |
https://doi.org/10.1139/facets-2023-0121 |
container_title |
FACETS |
container_volume |
9 |
container_start_page |
1 |
op_container_end_page |
13 |
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1810438988114165760 |