Toxicity survey of Canadian Arctic marine sediments
International audience Purpose This paper reports a toxicity survey of Canadian Arctic marine sediments. During the Amundsen scientific cruise, eight sites distributed across the Canadian Arctic and sub-Arctic regions were selected to highlight sensitive areas affected by either atmospheric depositi...
Published in: | Journal of Soils and Sediments |
---|---|
Main Authors: | , , , , , , |
Other Authors: | , , , , , , , |
Format: | Article in Journal/Newspaper |
Language: | English |
Published: |
HAL CCSD
2014
|
Subjects: | |
Online Access: | https://hal.science/hal-01076335 https://doi.org/10.1007/s11368-013-0792-1 |
id |
ftunilorrainehal:oai:HAL:hal-01076335v1 |
---|---|
record_format |
openpolar |
institution |
Open Polar |
collection |
Université de Lorraine: HAL |
op_collection_id |
ftunilorrainehal |
language |
English |
topic |
Canadian Arctic Hudson Bay Mercury Northwest Passage Sediments Toxicity [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE]Environmental Sciences |
spellingShingle |
Canadian Arctic Hudson Bay Mercury Northwest Passage Sediments Toxicity [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE]Environmental Sciences Canario, Joao Poissant, Laurier Pilote, Martin Blaise, Christian Constant, Philippe Ferard, Jean-Francois Gagne, Francois Toxicity survey of Canadian Arctic marine sediments |
topic_facet |
Canadian Arctic Hudson Bay Mercury Northwest Passage Sediments Toxicity [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE]Environmental Sciences |
description |
International audience Purpose This paper reports a toxicity survey of Canadian Arctic marine sediments. During the Amundsen scientific cruise, eight sites distributed across the Canadian Arctic and sub-Arctic regions were selected to highlight sensitive areas affected by either atmospheric deposition, ocean current, river drainage, or anthropogenic activities. As part of the Canadian-led ArcticNet research program, this study aims to monitor and to better understand potential changes likely to impact the Arctic.Materials and methods Surface sediments were investigated with bioanalytical tests to assess sediment toxicity. Testing of sediment elutriates was undertaken with the ARTOXKIT M, Microtox liquid phase (MLPA), and ROTOXKIT M toxicity assays, while whole sediment testing was carried out with the Microtox solid phase assay (MSPA) toxicity test procedure. Sediment mercury (Hg) content was also determined in each sample since Hg transport and toxicity is specifically an important issue in the Arctic and is generally a key indicator of the pollution status in many aquatic ecosystems.Results and discussion Based on bioassay results and sediment granulometric criteria, these Arctic sediments must be considered nontoxic. However, based on MSPA half maximal inhibitory concentrations (IC50s) and/or MLPA threshold effect concentration (TEC) values, some degree of toxicity may be measureable particularly in the sediments located in southern and northeast Hudson Bay. The Hudson Bay watershed drains 30% of Canadian rivers and extends to northern USA. Despite the large Hg concern in the Arctic, the input of local or long-range Hg sources does not appear to be a contributing factor to sediment toxicity.Conclusions These initial results are valuable in that they set baseline quality levels for these sediments as of 2005. As such, future comparisons can be made to assess temporal and spatial trends. Human activity and climate change is expected to impact these regions in the future, resulting in further reduction of sea ... |
author2 |
University of Lisbon, CQE, Inst Super Tecn, P-1049001 Lisbon, Portugal Environm Canada, Fluvial Ecosyst Res, Aquat Ecosyst Protect Res Div, Water Sci & Technol Directorate, Montreal, PQ H2Y 2E7, Canada Institut Armand Frappier (INRS-IAF) Institut National de la Recherche Scientifique Québec (INRS)-Réseau International des Instituts Pasteur (RIIP) Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Canario, Joao Poissant, Laurier Pilote, Martin Blaise, Christian Constant, Philippe Ferard, Jean-Francois Gagne, Francois |
author_facet |
Canario, Joao Poissant, Laurier Pilote, Martin Blaise, Christian Constant, Philippe Ferard, Jean-Francois Gagne, Francois |
author_sort |
Canario, Joao |
title |
Toxicity survey of Canadian Arctic marine sediments |
title_short |
Toxicity survey of Canadian Arctic marine sediments |
title_full |
Toxicity survey of Canadian Arctic marine sediments |
title_fullStr |
Toxicity survey of Canadian Arctic marine sediments |
title_full_unstemmed |
Toxicity survey of Canadian Arctic marine sediments |
title_sort |
toxicity survey of canadian arctic marine sediments |
publisher |
HAL CCSD |
publishDate |
2014 |
url |
https://hal.science/hal-01076335 https://doi.org/10.1007/s11368-013-0792-1 |
geographic |
Arctic Hudson Bay Hudson Northwest Passage |
geographic_facet |
Arctic Hudson Bay Hudson Northwest Passage |
genre |
Arctic ArcticNet Climate change Hudson Bay Northwest passage |
genre_facet |
Arctic ArcticNet Climate change Hudson Bay Northwest passage |
op_source |
ISSN: 1439-0108 EISSN: 1614-7480 Journal of Soils and Sediments https://hal.science/hal-01076335 Journal of Soils and Sediments, 2014, 14 (1), pp.196-203. ⟨10.1007/s11368-013-0792-1⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s11368-013-0792-1 hal-01076335 https://hal.science/hal-01076335 doi:10.1007/s11368-013-0792-1 |
op_doi |
https://doi.org/10.1007/s11368-013-0792-1 |
container_title |
Journal of Soils and Sediments |
container_volume |
14 |
container_issue |
1 |
container_start_page |
196 |
op_container_end_page |
203 |
_version_ |
1802639538851414016 |
spelling |
ftunilorrainehal:oai:HAL:hal-01076335v1 2024-06-23T07:49:14+00:00 Toxicity survey of Canadian Arctic marine sediments Canario, Joao Poissant, Laurier Pilote, Martin Blaise, Christian Constant, Philippe Ferard, Jean-Francois Gagne, Francois University of Lisbon, CQE, Inst Super Tecn, P-1049001 Lisbon, Portugal Environm Canada, Fluvial Ecosyst Res, Aquat Ecosyst Protect Res Div, Water Sci & Technol Directorate, Montreal, PQ H2Y 2E7, Canada Institut Armand Frappier (INRS-IAF) Institut National de la Recherche Scientifique Québec (INRS)-Réseau International des Instituts Pasteur (RIIP) Laboratoire Interdisciplinaire des Environnements Continentaux (LIEC) Institut Ecologie et Environnement - CNRS Ecologie et Environnement (INEE-CNRS) Centre National de la Recherche Scientifique (CNRS)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Observatoire Terre et Environnement de Lorraine (OTELo) Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS)-Institut national des sciences de l'Univers (INSU - CNRS)-Université de Lorraine (UL)-Centre National de la Recherche Scientifique (CNRS) 2014-01-01 https://hal.science/hal-01076335 https://doi.org/10.1007/s11368-013-0792-1 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s11368-013-0792-1 hal-01076335 https://hal.science/hal-01076335 doi:10.1007/s11368-013-0792-1 ISSN: 1439-0108 EISSN: 1614-7480 Journal of Soils and Sediments https://hal.science/hal-01076335 Journal of Soils and Sediments, 2014, 14 (1), pp.196-203. ⟨10.1007/s11368-013-0792-1⟩ Canadian Arctic Hudson Bay Mercury Northwest Passage Sediments Toxicity [SDU.ENVI]Sciences of the Universe [physics]/Continental interfaces environment [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2014 ftunilorrainehal https://doi.org/10.1007/s11368-013-0792-1 2024-06-04T00:04:19Z International audience Purpose This paper reports a toxicity survey of Canadian Arctic marine sediments. During the Amundsen scientific cruise, eight sites distributed across the Canadian Arctic and sub-Arctic regions were selected to highlight sensitive areas affected by either atmospheric deposition, ocean current, river drainage, or anthropogenic activities. As part of the Canadian-led ArcticNet research program, this study aims to monitor and to better understand potential changes likely to impact the Arctic.Materials and methods Surface sediments were investigated with bioanalytical tests to assess sediment toxicity. Testing of sediment elutriates was undertaken with the ARTOXKIT M, Microtox liquid phase (MLPA), and ROTOXKIT M toxicity assays, while whole sediment testing was carried out with the Microtox solid phase assay (MSPA) toxicity test procedure. Sediment mercury (Hg) content was also determined in each sample since Hg transport and toxicity is specifically an important issue in the Arctic and is generally a key indicator of the pollution status in many aquatic ecosystems.Results and discussion Based on bioassay results and sediment granulometric criteria, these Arctic sediments must be considered nontoxic. However, based on MSPA half maximal inhibitory concentrations (IC50s) and/or MLPA threshold effect concentration (TEC) values, some degree of toxicity may be measureable particularly in the sediments located in southern and northeast Hudson Bay. The Hudson Bay watershed drains 30% of Canadian rivers and extends to northern USA. Despite the large Hg concern in the Arctic, the input of local or long-range Hg sources does not appear to be a contributing factor to sediment toxicity.Conclusions These initial results are valuable in that they set baseline quality levels for these sediments as of 2005. As such, future comparisons can be made to assess temporal and spatial trends. Human activity and climate change is expected to impact these regions in the future, resulting in further reduction of sea ... Article in Journal/Newspaper Arctic ArcticNet Climate change Hudson Bay Northwest passage Université de Lorraine: HAL Arctic Hudson Bay Hudson Northwest Passage Journal of Soils and Sediments 14 1 196 203 |