The population of beluga from the St. Lawrence Estuary (SLE) is a wildlife species threatened with extinction. One of the possible causes explaining the current status of the population is its exposure to toxic chemicals. This review paper gathers the published data on the contamination of the SLE b...
Published in: | Revue des sciences de l'eau |
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Main Author: | |
Format: | Article in Journal/Newspaper |
Language: | French |
Published: |
Université du Québec - INRS-Eau, Terre et Environnement (INRS-ETE)
2009
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Subjects: | |
Online Access: | http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://doi.org/10.7202/037482ar https://id.erudit.org/iderudit/037482ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar/ https://core.ac.uk/display/59326167 http://id.erudit.org/iderudit/037482ar https://www.erudit.org/revue/rseau/2009/v22/n2/037482ar.html?vue=resume https://academic.microsoft.com/#/detail/2112812045 |
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French |
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Sciences Humaines et Sociales Social Sciences and Humanities Contamination mammifère marin béluga Saint-Laurent POP BPC PBDE tendance temporelle marine mammals St. Lawrence PCB temporal trend envir geo |
spellingShingle |
Sciences Humaines et Sociales Social Sciences and Humanities Contamination mammifère marin béluga Saint-Laurent POP BPC PBDE tendance temporelle marine mammals St. Lawrence PCB temporal trend envir geo Michel Lebeuf |
topic_facet |
Sciences Humaines et Sociales Social Sciences and Humanities Contamination mammifère marin béluga Saint-Laurent POP BPC PBDE tendance temporelle marine mammals St. Lawrence PCB temporal trend envir geo |
description |
The population of beluga from the St. Lawrence Estuary (SLE) is a wildlife species threatened with extinction. One of the possible causes explaining the current status of the population is its exposure to toxic chemicals. This review paper gathers the published data on the contamination of the SLE belugas by persistent organic pollutants (POP). Parameters and processes influencing the concentrations and the temporal trends of POPs in SLE belugas are discussed. The paper also presents the strengths and limits of monitoring contaminants in the SLE belugas for the population itself and as a sentinel species of its habitat. Between 1980 and 2007, more than 20 scientific papers have reported the presence of a variety of POP in the SLE belugas. Polychlorinated biphenyls (PCB) and dichlorodiphenyltrichloroethane (DDT) and its metabolites have been the most frequently reported POP in SLE belugas. Most chemical analyses have been done on beluga tissues collected from stranded carcasses. Concentrations of POP that have been regulated in Canada, including PCB and DDT, are decreasing or stable in SLE belugas. However, concentrations of polybrominated diphenyls ethers, an emerging chemical used as flame retardant, are doubling every 2-3 years in beluga blubber. Concentrations and temporal trends of POP in SLE beluga are influenced by several factors such as the age and sex of animals as well as the time period of their exposure. The quality and the representativeness of samples analyzed or changes in analytical methods can also affect concentrations of POP measured in beluga. In addition, regulations on the use of POP but also changes in beluga diet have affected the exposure of beluga to POP in time. The SLE carcass program has been essential in collecting samples and complementary information on beluga in order to characterize POP contamination and temporal trends in this population. Belugas should not be considered as a good bioindicator species of the decrease of POP in its habitat, but they should be considered as a ... |
format |
Article in Journal/Newspaper |
author |
Michel Lebeuf |
author_facet |
Michel Lebeuf |
author_sort |
Michel Lebeuf |
publisher |
Université du Québec - INRS-Eau, Terre et Environnement (INRS-ETE) |
publishDate |
2009 |
url |
http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://doi.org/10.7202/037482ar https://id.erudit.org/iderudit/037482ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar/ https://core.ac.uk/display/59326167 http://id.erudit.org/iderudit/037482ar https://www.erudit.org/revue/rseau/2009/v22/n2/037482ar.html?vue=resume https://academic.microsoft.com/#/detail/2112812045 |
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Canada |
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Canada |
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Beluga Beluga* Béluga* |
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Beluga Beluga* Béluga* |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::2df27d0b3a63d7b734c8e2db4be386da 2023-05-15T15:41:31+02:00 Michel Lebeuf 2009-06-15 http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://doi.org/10.7202/037482ar https://id.erudit.org/iderudit/037482ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar/ https://core.ac.uk/display/59326167 http://id.erudit.org/iderudit/037482ar https://www.erudit.org/revue/rseau/2009/v22/n2/037482ar.html?vue=resume https://academic.microsoft.com/#/detail/2112812045 fr fre Université du Québec - INRS-Eau, Terre et Environnement (INRS-ETE) http://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar.pdf http://dx.doi.org/10.7202/037482ar https://id.erudit.org/iderudit/037482ar https://dx.doi.org/10.7202/037482ar https://www.erudit.org/fr/revues/rseau/2009-v22-n2-rseau3113/037482ar/ https://core.ac.uk/display/59326167 http://id.erudit.org/iderudit/037482ar https://www.erudit.org/revue/rseau/2009/v22/n2/037482ar.html?vue=resume https://academic.microsoft.com/#/detail/2112812045 undefined oai:erudit.org:037482ar 10.7202/037482ar 037482ar 2112812045 10|opendoar____::16e6a3326dd7d868cbc926602a61e4d0 10|openaire____::9e3be59865b2c1c335d32dae2fe7b254 10|openaire____::55045bd2a65019fd8e6741a755395c8c 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::130cf49e979129942002da43f89d0654 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a Sciences Humaines et Sociales Social Sciences and Humanities Contamination mammifère marin béluga Saint-Laurent POP BPC PBDE tendance temporelle marine mammals St. Lawrence PCB temporal trend envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2009 fttriple https://doi.org/10.7202/037482ar 2023-01-22T16:58:53Z The population of beluga from the St. Lawrence Estuary (SLE) is a wildlife species threatened with extinction. One of the possible causes explaining the current status of the population is its exposure to toxic chemicals. This review paper gathers the published data on the contamination of the SLE belugas by persistent organic pollutants (POP). Parameters and processes influencing the concentrations and the temporal trends of POPs in SLE belugas are discussed. The paper also presents the strengths and limits of monitoring contaminants in the SLE belugas for the population itself and as a sentinel species of its habitat. Between 1980 and 2007, more than 20 scientific papers have reported the presence of a variety of POP in the SLE belugas. Polychlorinated biphenyls (PCB) and dichlorodiphenyltrichloroethane (DDT) and its metabolites have been the most frequently reported POP in SLE belugas. Most chemical analyses have been done on beluga tissues collected from stranded carcasses. Concentrations of POP that have been regulated in Canada, including PCB and DDT, are decreasing or stable in SLE belugas. However, concentrations of polybrominated diphenyls ethers, an emerging chemical used as flame retardant, are doubling every 2-3 years in beluga blubber. Concentrations and temporal trends of POP in SLE beluga are influenced by several factors such as the age and sex of animals as well as the time period of their exposure. The quality and the representativeness of samples analyzed or changes in analytical methods can also affect concentrations of POP measured in beluga. In addition, regulations on the use of POP but also changes in beluga diet have affected the exposure of beluga to POP in time. The SLE carcass program has been essential in collecting samples and complementary information on beluga in order to characterize POP contamination and temporal trends in this population. Belugas should not be considered as a good bioindicator species of the decrease of POP in its habitat, but they should be considered as a ... Article in Journal/Newspaper Beluga Beluga* Béluga* Unknown Canada Revue des sciences de l'eau 22 2 199 233 |