The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic
Municipal wastewater is a large source of pollution to Canadian waters, yet its effects on Arctic marine ecosystems remains relatively unknown. We characterized the impacts of municipal wastewater from a growing northern community, Iqaluit, Nunavut, on the Arctic truncate soft-shell clam, Mya trunca...
Published in: | Canadian Journal of Fisheries and Aquatic Sciences |
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Language: | English |
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Canadian Science Publishing
2022
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Online Access: | http://dx.doi.org/10.1139/cjfas-2021-0078 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0078 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0078 |
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crcansciencepubl:10.1139/cjfas-2021-0078 2024-04-07T07:49:34+00:00 The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic Schaefer, Christina M. Deslauriers, David Jeffries, Ken M. 2022 http://dx.doi.org/10.1139/cjfas-2021-0078 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0078 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0078 en eng Canadian Science Publishing http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 3, page 367-379 ISSN 0706-652X 1205-7533 Aquatic Science Ecology, Evolution, Behavior and Systematics journal-article 2022 crcansciencepubl https://doi.org/10.1139/cjfas-2021-0078 2024-03-08T00:37:36Z Municipal wastewater is a large source of pollution to Canadian waters, yet its effects on Arctic marine ecosystems remains relatively unknown. We characterized the impacts of municipal wastewater from a growing northern community, Iqaluit, Nunavut, on the Arctic truncate soft-shell clam, Mya truncata. Clams were sampled from six locations that varied in proximity to the wastewater treatment plant, and shell biogeochemical analysis revealed that clams nearest the wastewater treatment plant had slower growth rates, lower carbon and oxygen stable isotope ratios, and elevated concentrations of copper and lead. A parallel analysis on mRNA expression profiles characterized M. truncata’s physiological response to wastewater effluent. Clams nearest the wastewater treatment plant had significantly lower mRNA expression of genes associated with metabolism, antioxidants, molecular chaperones, and phase I and II detoxification, but had heightened mRNA expression in genes coding for enzymes that bind and remove contaminants. These results demonstrated a biological response to Iqaluit’s wastewater effluent and highlight M. truncata’s potential to act as a biomonitor of municipal wastewater along Arctic coastlines in Canada. Article in Journal/Newspaper Arctic Iqaluit Nunavut Canadian Science Publishing Arctic Nunavut Canada Canadian Journal of Fisheries and Aquatic Sciences |
institution |
Open Polar |
collection |
Canadian Science Publishing |
op_collection_id |
crcansciencepubl |
language |
English |
topic |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
spellingShingle |
Aquatic Science Ecology, Evolution, Behavior and Systematics Schaefer, Christina M. Deslauriers, David Jeffries, Ken M. The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic |
topic_facet |
Aquatic Science Ecology, Evolution, Behavior and Systematics |
description |
Municipal wastewater is a large source of pollution to Canadian waters, yet its effects on Arctic marine ecosystems remains relatively unknown. We characterized the impacts of municipal wastewater from a growing northern community, Iqaluit, Nunavut, on the Arctic truncate soft-shell clam, Mya truncata. Clams were sampled from six locations that varied in proximity to the wastewater treatment plant, and shell biogeochemical analysis revealed that clams nearest the wastewater treatment plant had slower growth rates, lower carbon and oxygen stable isotope ratios, and elevated concentrations of copper and lead. A parallel analysis on mRNA expression profiles characterized M. truncata’s physiological response to wastewater effluent. Clams nearest the wastewater treatment plant had significantly lower mRNA expression of genes associated with metabolism, antioxidants, molecular chaperones, and phase I and II detoxification, but had heightened mRNA expression in genes coding for enzymes that bind and remove contaminants. These results demonstrated a biological response to Iqaluit’s wastewater effluent and highlight M. truncata’s potential to act as a biomonitor of municipal wastewater along Arctic coastlines in Canada. |
format |
Article in Journal/Newspaper |
author |
Schaefer, Christina M. Deslauriers, David Jeffries, Ken M. |
author_facet |
Schaefer, Christina M. Deslauriers, David Jeffries, Ken M. |
author_sort |
Schaefer, Christina M. |
title |
The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic |
title_short |
The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic |
title_full |
The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic |
title_fullStr |
The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic |
title_full_unstemmed |
The truncate soft-shell clam, Mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the Canadian Arctic |
title_sort |
truncate soft-shell clam, mya truncata , as a biomonitor of municipal wastewater exposure and historical anthropogenic impacts in the canadian arctic |
publisher |
Canadian Science Publishing |
publishDate |
2022 |
url |
http://dx.doi.org/10.1139/cjfas-2021-0078 https://cdnsciencepub.com/doi/full-xml/10.1139/cjfas-2021-0078 https://cdnsciencepub.com/doi/pdf/10.1139/cjfas-2021-0078 |
geographic |
Arctic Nunavut Canada |
geographic_facet |
Arctic Nunavut Canada |
genre |
Arctic Iqaluit Nunavut |
genre_facet |
Arctic Iqaluit Nunavut |
op_source |
Canadian Journal of Fisheries and Aquatic Sciences volume 79, issue 3, page 367-379 ISSN 0706-652X 1205-7533 |
op_rights |
http://www.nrcresearchpress.com/page/about/CorporateTextAndDataMining |
op_doi |
https://doi.org/10.1139/cjfas-2021-0078 |
container_title |
Canadian Journal of Fisheries and Aquatic Sciences |
_version_ |
1795663914577428480 |