Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics
The identification of food fish bearing anthropogenic contaminants is one of many priorities for Indigenous peoples living in the Arctic. Mercury (Hg), arsenic (As), and persistent organic pollutants including polychlorinated biphenyls (PCBs) are of concern, and these are reported, in some cases for...
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ftpubmed:oai:pubmedcentral.nih.gov:7764770 2023-05-15T14:51:08+02:00 Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics Walker, Virginia K. Das, Pranab Li, Peiwen Lougheed, Stephen C. Moniz, Kristy Schott, Stephan Qitsualik, James Koch, Iris 2020-12-08 http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764770/ http://www.ncbi.nlm.nih.gov/pubmed/33302601 https://doi.org/10.3390/foods9121824 en eng MDPI http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764770/ http://www.ncbi.nlm.nih.gov/pubmed/33302601 http://dx.doi.org/10.3390/foods9121824 © 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). CC-BY Foods Article Text 2020 ftpubmed https://doi.org/10.3390/foods9121824 2021-01-03T01:49:39Z The identification of food fish bearing anthropogenic contaminants is one of many priorities for Indigenous peoples living in the Arctic. Mercury (Hg), arsenic (As), and persistent organic pollutants including polychlorinated biphenyls (PCBs) are of concern, and these are reported, in some cases for the first time, for fish sampled in and around King William Island, located in Nunavut, Canada. More than 500 salmonids, comprising Arctic char, lake trout, lake whitefish, and ciscoes, were assayed for contaminants. The studied species are anadromous, migrating to the ocean to feed in the summers and returning to freshwater before sea ice formation in the autumn. Assessments of muscle Hg levels in salmonids from fishing sites on King William Island showed generally higher levels than from mainland sites, with mean concentrations generally below guidelines, except for lake trout. In contrast, mainland fish showed higher means for As, including non-toxic arsenobetaine, than island fish. Lake trout were highest in As and PCB levels, with salmonid PCB congener analysis showing signatures consistent with the legacy of cold-war distant early warning stations. After DNA-profiling, only 4–32 Arctic char single nucleotide polymorphisms were needed for successful population assignment. These results support our objective to demonstrate that genomic tools could facilitate efficient and cost-effective cluster assignment for contaminant analysis during ocean residency. We further suggest that routine pollutant testing during the current period of dramatic climate change would be helpful to safeguard the wellbeing of Inuit who depend on these fish as a staple input to their diet. Moreover, this strategy should be applicable elsewhere. Text Arctic Climate change inuit King William Island Nunavut Sea ice PubMed Central (PMC) Arctic Canada Fish Lake ENVELOPE(-126.228,-126.228,52.508,52.508) King William Island ENVELOPE(-97.418,-97.418,69.168,69.168) Nunavut William Island ENVELOPE(-130.703,-130.703,54.035,54.035) Foods 9 12 1824 |
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Article Walker, Virginia K. Das, Pranab Li, Peiwen Lougheed, Stephen C. Moniz, Kristy Schott, Stephan Qitsualik, James Koch, Iris Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics |
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Article |
description |
The identification of food fish bearing anthropogenic contaminants is one of many priorities for Indigenous peoples living in the Arctic. Mercury (Hg), arsenic (As), and persistent organic pollutants including polychlorinated biphenyls (PCBs) are of concern, and these are reported, in some cases for the first time, for fish sampled in and around King William Island, located in Nunavut, Canada. More than 500 salmonids, comprising Arctic char, lake trout, lake whitefish, and ciscoes, were assayed for contaminants. The studied species are anadromous, migrating to the ocean to feed in the summers and returning to freshwater before sea ice formation in the autumn. Assessments of muscle Hg levels in salmonids from fishing sites on King William Island showed generally higher levels than from mainland sites, with mean concentrations generally below guidelines, except for lake trout. In contrast, mainland fish showed higher means for As, including non-toxic arsenobetaine, than island fish. Lake trout were highest in As and PCB levels, with salmonid PCB congener analysis showing signatures consistent with the legacy of cold-war distant early warning stations. After DNA-profiling, only 4–32 Arctic char single nucleotide polymorphisms were needed for successful population assignment. These results support our objective to demonstrate that genomic tools could facilitate efficient and cost-effective cluster assignment for contaminant analysis during ocean residency. We further suggest that routine pollutant testing during the current period of dramatic climate change would be helpful to safeguard the wellbeing of Inuit who depend on these fish as a staple input to their diet. Moreover, this strategy should be applicable elsewhere. |
format |
Text |
author |
Walker, Virginia K. Das, Pranab Li, Peiwen Lougheed, Stephen C. Moniz, Kristy Schott, Stephan Qitsualik, James Koch, Iris |
author_facet |
Walker, Virginia K. Das, Pranab Li, Peiwen Lougheed, Stephen C. Moniz, Kristy Schott, Stephan Qitsualik, James Koch, Iris |
author_sort |
Walker, Virginia K. |
title |
Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics |
title_short |
Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics |
title_full |
Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics |
title_fullStr |
Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics |
title_full_unstemmed |
Identification of Arctic Food Fish Species for Anthropogenic Contaminant Testing Using Geography and Genetics |
title_sort |
identification of arctic food fish species for anthropogenic contaminant testing using geography and genetics |
publisher |
MDPI |
publishDate |
2020 |
url |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764770/ http://www.ncbi.nlm.nih.gov/pubmed/33302601 https://doi.org/10.3390/foods9121824 |
long_lat |
ENVELOPE(-126.228,-126.228,52.508,52.508) ENVELOPE(-97.418,-97.418,69.168,69.168) ENVELOPE(-130.703,-130.703,54.035,54.035) |
geographic |
Arctic Canada Fish Lake King William Island Nunavut William Island |
geographic_facet |
Arctic Canada Fish Lake King William Island Nunavut William Island |
genre |
Arctic Climate change inuit King William Island Nunavut Sea ice |
genre_facet |
Arctic Climate change inuit King William Island Nunavut Sea ice |
op_source |
Foods |
op_relation |
http://www.ncbi.nlm.nih.gov/pmc/articles/PMC7764770/ http://www.ncbi.nlm.nih.gov/pubmed/33302601 http://dx.doi.org/10.3390/foods9121824 |
op_rights |
© 2020 by the authors. Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (http://creativecommons.org/licenses/by/4.0/). |
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CC-BY |
op_doi |
https://doi.org/10.3390/foods9121824 |
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Foods |
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