Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants
International audience Though located in a rather remote area free from neighbouring industrial activities, the French National Nature Reserve of Camargue is however exposed to a non point source contamination by a number of persistant organic pollutants, particularly polycyclic aromatic hydrocarbon...
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fttriple:oai:gotriple.eu:10670/1.wk8sed 2023-05-15T13:28:22+02:00 Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants Identification and validation of ecotoxicological biomarkers in the eel population of a pond of the Camargue National Nature Reserve, Vaccarès, exposed to persistent organic pollutants Roche, Hélène BUET, Astrid RAMADE, Francois 2003-01-01 https://hal.archives-ouvertes.fr/hal-03530067/file/bitstream_113925.pdf https://hal.archives-ouvertes.fr/hal-03530067 fr fre HAL CCSD Société nationale de protection de la nature hal-03530067 10670/1.wk8sed https://hal.archives-ouvertes.fr/hal-03530067/file/bitstream_113925.pdf https://hal.archives-ouvertes.fr/hal-03530067 other Hyper Article en Ligne - Sciences de l'Homme et de la Société EISSN: 2429-6422 Revue d'Ecologie, Terre et Vie Revue d'Ecologie, Terre et Vie, Société nationale de protection de la nature, 2003, 58 (1), pp.127-141 Persistent organic pollutant Anguilla anguilla Hydrocarbon Biological accumulation Biological marker Acetylcholinesterase Biotransformation Detoxification Water pollution Chemical contamination Nature reserve Pollutant Camargue Delta Pond Polluant organique persistant Hydrocarbure Accumulation biologique Marqueur biologique Détoxication Pollution eau Contamination chimique Réserve naturelle Polluant Etang envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2003 fttriple 2023-01-22T18:53:00Z International audience Though located in a rather remote area free from neighbouring industrial activities, the French National Nature Reserve of Camargue is however exposed to a non point source contamination by a number of persistant organic pollutants, particularly polycyclic aromatic hydrocarbons (PAH) and organochlorine compounds (OC). Due to the nature of this contamination, investigations about validation of biomarkers in the eels of the Vaccarès lagoon have proven to be of the utmost importance. They have been focused on the characterization and validation of biomarkers related to metabolic responses including, not only the detoxification mechanisms (biotransformation, antioxidant process) and the energy requirements, but also some unspecific metabolic processes. These last ones are enzymatic membrane markers implicated either in the neuronal conduction (acetylcholinesterase, AChE) or in the osmoregulation and the energy metabolism (ATPases). The experimental results have been screened by the way of a multivariate analysis. It may be concluded that the rate of tissue glycogen seems to be a sensitive biomarker as well as three hepatic activities involved in the protection against oxyradicals : catalase, glutathion peroxidase (SeGPx) and superoxide dismutases (SOD). The muscle and gill ATPases as well as the muscle and brain AChE show more significant results in term of biomarkers than the biotransformation enzymes : ethoxyresorufine-O-deethylase (EROD) and uridine diphospho-glucuronyl transferase (UDPGT). However most of these enzymatic activities depend on a number of abiotic factors. This study brings some conclusive elements for the validation of the biomarkers use from data obtained in laboratory studies to their application in field ecotoxicology. It also raises the question about the tissue location of the contaminant in fish, in relationship to their age or their mode of contamination, and its influence on the biomarkers response. As a conclusion, if the validation of membrane indicators is ... Article in Journal/Newspaper Anguilla anguilla Unknown |
institution |
Open Polar |
collection |
Unknown |
op_collection_id |
fttriple |
language |
French |
topic |
Persistent organic pollutant Anguilla anguilla Hydrocarbon Biological accumulation Biological marker Acetylcholinesterase Biotransformation Detoxification Water pollution Chemical contamination Nature reserve Pollutant Camargue Delta Pond Polluant organique persistant Hydrocarbure Accumulation biologique Marqueur biologique Détoxication Pollution eau Contamination chimique Réserve naturelle Polluant Etang envir geo |
spellingShingle |
Persistent organic pollutant Anguilla anguilla Hydrocarbon Biological accumulation Biological marker Acetylcholinesterase Biotransformation Detoxification Water pollution Chemical contamination Nature reserve Pollutant Camargue Delta Pond Polluant organique persistant Hydrocarbure Accumulation biologique Marqueur biologique Détoxication Pollution eau Contamination chimique Réserve naturelle Polluant Etang envir geo Roche, Hélène BUET, Astrid RAMADE, Francois Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants |
topic_facet |
Persistent organic pollutant Anguilla anguilla Hydrocarbon Biological accumulation Biological marker Acetylcholinesterase Biotransformation Detoxification Water pollution Chemical contamination Nature reserve Pollutant Camargue Delta Pond Polluant organique persistant Hydrocarbure Accumulation biologique Marqueur biologique Détoxication Pollution eau Contamination chimique Réserve naturelle Polluant Etang envir geo |
description |
International audience Though located in a rather remote area free from neighbouring industrial activities, the French National Nature Reserve of Camargue is however exposed to a non point source contamination by a number of persistant organic pollutants, particularly polycyclic aromatic hydrocarbons (PAH) and organochlorine compounds (OC). Due to the nature of this contamination, investigations about validation of biomarkers in the eels of the Vaccarès lagoon have proven to be of the utmost importance. They have been focused on the characterization and validation of biomarkers related to metabolic responses including, not only the detoxification mechanisms (biotransformation, antioxidant process) and the energy requirements, but also some unspecific metabolic processes. These last ones are enzymatic membrane markers implicated either in the neuronal conduction (acetylcholinesterase, AChE) or in the osmoregulation and the energy metabolism (ATPases). The experimental results have been screened by the way of a multivariate analysis. It may be concluded that the rate of tissue glycogen seems to be a sensitive biomarker as well as three hepatic activities involved in the protection against oxyradicals : catalase, glutathion peroxidase (SeGPx) and superoxide dismutases (SOD). The muscle and gill ATPases as well as the muscle and brain AChE show more significant results in term of biomarkers than the biotransformation enzymes : ethoxyresorufine-O-deethylase (EROD) and uridine diphospho-glucuronyl transferase (UDPGT). However most of these enzymatic activities depend on a number of abiotic factors. This study brings some conclusive elements for the validation of the biomarkers use from data obtained in laboratory studies to their application in field ecotoxicology. It also raises the question about the tissue location of the contaminant in fish, in relationship to their age or their mode of contamination, and its influence on the biomarkers response. As a conclusion, if the validation of membrane indicators is ... |
format |
Article in Journal/Newspaper |
author |
Roche, Hélène BUET, Astrid RAMADE, Francois |
author_facet |
Roche, Hélène BUET, Astrid RAMADE, Francois |
author_sort |
Roche, Hélène |
title |
Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants |
title_short |
Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants |
title_full |
Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants |
title_fullStr |
Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants |
title_full_unstemmed |
Mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de Camargue, le Vaccarès, exposée à des polluants organiques persistants |
title_sort |
mise en évidence et validation de biomarqueurs écotoxicologiques dans la population d'anguilles d'un étang de la réserve naturelle nationale de camargue, le vaccarès, exposée à des polluants organiques persistants |
publisher |
HAL CCSD |
publishDate |
2003 |
url |
https://hal.archives-ouvertes.fr/hal-03530067/file/bitstream_113925.pdf https://hal.archives-ouvertes.fr/hal-03530067 |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société EISSN: 2429-6422 Revue d'Ecologie, Terre et Vie Revue d'Ecologie, Terre et Vie, Société nationale de protection de la nature, 2003, 58 (1), pp.127-141 |
op_relation |
hal-03530067 10670/1.wk8sed https://hal.archives-ouvertes.fr/hal-03530067/file/bitstream_113925.pdf https://hal.archives-ouvertes.fr/hal-03530067 |
op_rights |
other |
_version_ |
1766403721195945984 |