Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures
Embryos and larva of bivalves are used frequently as sentinel organisms in ecotoxicological bioassays for the evaluation of seawater quality. Indeed, they are very sensitive to pollutants and provide a fast response. The embryo toxicity bioassay with the bivalve mollusc Crassostrea gigas was used to...
Published in: | Revue des sciences de l’eau |
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Main Authors: | , , , , |
Format: | Article in Journal/Newspaper |
Language: | unknown |
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Consortium Erudit
2018
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Online Access: | http://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://doi.org/10.7202/1044245ar https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar/ https://core.ac.uk/display/154941905 https://academic.microsoft.com/#/detail/2797557502 https://id.erudit.org/iderudit/1044245ar |
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fttriple:oai:gotriple.eu:50|dedup_wf_001::86085332ed2ccf29ed73494ddc8cca5f 2023-05-15T15:57:45+02:00 Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures Mina Bouhallaoui Françoise Quiniou Ali Benhra Bouchra El haimeur Mohammed Blaghen 2018-03-28 http://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://doi.org/10.7202/1044245ar https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar/ https://core.ac.uk/display/154941905 https://academic.microsoft.com/#/detail/2797557502 https://id.erudit.org/iderudit/1044245ar undefined unknown Consortium Erudit http://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf http://dx.doi.org/10.7202/1044245ar https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar/ https://core.ac.uk/display/154941905 https://academic.microsoft.com/#/detail/2797557502 https://id.erudit.org/iderudit/1044245ar undefined 1044245ar 10.7202/1044245ar 2797557502 oai:erudit.org:1044245ar 10|openaire____::081b82f96300b6a6e3d282bad31cb6e2 10|issn___print::130cf49e979129942002da43f89d0654 10|openaire____::8ac8380272269217cb09a928c8caa993 10|openaire____::5f532a3fc4f1ea403f37070f59a7a53a 10|opendoar____::16e6a3326dd7d868cbc926602a61e4d0 Sciences Humaines et Sociales Social Sciences and Humanities Embryotoxicité bio-essai Crassostrea gigas métaux rejets industriels Embryo toxicity bioassay metals industrial wastewaters envir manag Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2018 fttriple https://doi.org/10.7202/1044245ar 2023-01-22T16:51:09Z Embryos and larva of bivalves are used frequently as sentinel organisms in ecotoxicological bioassays for the evaluation of seawater quality. Indeed, they are very sensitive to pollutants and provide a fast response. The embryo toxicity bioassay with the bivalve mollusc Crassostrea gigas was used to evaluate toxicity of three metals (mercury, copper, cadmium) and three effluents emanating from Moroccan industries which discharge directly on the Atlantic coast near Casablanca (electrochemical and mixed industrial waste waters) and on the El Jadida coast (phosphate treatment waste water). After 24-h exposures to the various media, the effects, expressed as CE50 values (effective concentrations affecting 50% of the test population), were compared. The results of the tests show that mercury is the most toxic metal (CE50 = 4.4 µg Hg∙L-1) followed by copper (CE50 = 16.4 µg Cu∙L-1) and finally cadmium (CE50 = 46.9 µg Cd∙L-1). The effects of the industrial wastewaters, tested with increasing dilutions, indicate a strong risk of seawater quality deterioration, especially in the discharge zones with CE50 values corresponding to effluent concentrations of less than 1%. The effluents decreased in toxicity according to the following order: electrochemical effluent > mixed industrial effluent > phosphate treatment effluent. This study demonstrated the usefulness of oyster embryos and larvae as a sensitive tool for assessing environmental quality. Les embryons et les larves des mollusques bivalves sont fréquemment utilisés comme organismes sentinelles dans l’évaluation de la qualité du milieu marin. En effet, ils sont très sensibles aux polluants et fournissent une réponse rapide. Le test d’embryotoxicité chez l’huître Crassostrea gigas a été utilisé pour évaluer la toxicité de trois métaux (mercure, cuivre, cadmium) et celle des rejets d’unités industrielles déversant directement dans le littoral atlantique Casablanca-Mohammedia (le rejet d’électrochimie et le rejet industriel mixte) et sur la côte d’El Jadida à 100 ... Article in Journal/Newspaper Crassostrea gigas Unknown Sentinelles ENVELOPE(141.696,141.696,-66.778,-66.778) Revue des sciences de l’eau 30 3 171 181 |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
unknown |
topic |
Sciences Humaines et Sociales Social Sciences and Humanities Embryotoxicité bio-essai Crassostrea gigas métaux rejets industriels Embryo toxicity bioassay metals industrial wastewaters envir manag |
spellingShingle |
Sciences Humaines et Sociales Social Sciences and Humanities Embryotoxicité bio-essai Crassostrea gigas métaux rejets industriels Embryo toxicity bioassay metals industrial wastewaters envir manag Mina Bouhallaoui Françoise Quiniou Ali Benhra Bouchra El haimeur Mohammed Blaghen Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
topic_facet |
Sciences Humaines et Sociales Social Sciences and Humanities Embryotoxicité bio-essai Crassostrea gigas métaux rejets industriels Embryo toxicity bioassay metals industrial wastewaters envir manag |
description |
Embryos and larva of bivalves are used frequently as sentinel organisms in ecotoxicological bioassays for the evaluation of seawater quality. Indeed, they are very sensitive to pollutants and provide a fast response. The embryo toxicity bioassay with the bivalve mollusc Crassostrea gigas was used to evaluate toxicity of three metals (mercury, copper, cadmium) and three effluents emanating from Moroccan industries which discharge directly on the Atlantic coast near Casablanca (electrochemical and mixed industrial waste waters) and on the El Jadida coast (phosphate treatment waste water). After 24-h exposures to the various media, the effects, expressed as CE50 values (effective concentrations affecting 50% of the test population), were compared. The results of the tests show that mercury is the most toxic metal (CE50 = 4.4 µg Hg∙L-1) followed by copper (CE50 = 16.4 µg Cu∙L-1) and finally cadmium (CE50 = 46.9 µg Cd∙L-1). The effects of the industrial wastewaters, tested with increasing dilutions, indicate a strong risk of seawater quality deterioration, especially in the discharge zones with CE50 values corresponding to effluent concentrations of less than 1%. The effluents decreased in toxicity according to the following order: electrochemical effluent > mixed industrial effluent > phosphate treatment effluent. This study demonstrated the usefulness of oyster embryos and larvae as a sensitive tool for assessing environmental quality. Les embryons et les larves des mollusques bivalves sont fréquemment utilisés comme organismes sentinelles dans l’évaluation de la qualité du milieu marin. En effet, ils sont très sensibles aux polluants et fournissent une réponse rapide. Le test d’embryotoxicité chez l’huître Crassostrea gigas a été utilisé pour évaluer la toxicité de trois métaux (mercure, cuivre, cadmium) et celle des rejets d’unités industrielles déversant directement dans le littoral atlantique Casablanca-Mohammedia (le rejet d’électrochimie et le rejet industriel mixte) et sur la côte d’El Jadida à 100 ... |
format |
Article in Journal/Newspaper |
author |
Mina Bouhallaoui Françoise Quiniou Ali Benhra Bouchra El haimeur Mohammed Blaghen |
author_facet |
Mina Bouhallaoui Françoise Quiniou Ali Benhra Bouchra El haimeur Mohammed Blaghen |
author_sort |
Mina Bouhallaoui |
title |
Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
title_short |
Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
title_full |
Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
title_fullStr |
Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
title_full_unstemmed |
Use of embryo-larval development stage of the oyster Crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
title_sort |
use of embryo-larval development stage of the oyster crassostrea gigas as a toxicity assessment tool for pure substances and complex mixtures |
publisher |
Consortium Erudit |
publishDate |
2018 |
url |
http://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://doi.org/10.7202/1044245ar https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar/ https://core.ac.uk/display/154941905 https://academic.microsoft.com/#/detail/2797557502 https://id.erudit.org/iderudit/1044245ar |
long_lat |
ENVELOPE(141.696,141.696,-66.778,-66.778) |
geographic |
Sentinelles |
geographic_facet |
Sentinelles |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
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op_relation |
http://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar.pdf http://dx.doi.org/10.7202/1044245ar https://www.erudit.org/fr/revues/rseau/2017-v30-n3-rseau03551/1044245ar/ https://core.ac.uk/display/154941905 https://academic.microsoft.com/#/detail/2797557502 https://id.erudit.org/iderudit/1044245ar |
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op_doi |
https://doi.org/10.7202/1044245ar |
container_title |
Revue des sciences de l’eau |
container_volume |
30 |
container_issue |
3 |
container_start_page |
171 |
op_container_end_page |
181 |
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