Evaluation of the contamination of the Loire estuary by endocrine disruptors
Estuaries are ecosystems of high productivity, crucial in the life history of fishes, invertebrates, birds, including commercially important species, but anthropogenic activities such as urban effluents are often the main factors responsible for water quality degradation. Complex mixtures of contami...
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ftccsdartic:oai:HAL:ineris-00970779v1 2023-05-15T13:27:19+02:00 Evaluation of the contamination of the Loire estuary by endocrine disruptors Blanchet-Letrouve, Isabelle Fossi-Tankoua, Olivia Poirier, L. Ait-Aissa, Selim Herrenknecht, C. Budzinski, Hélène Baloche, S.B. Dufour, S.D. Mouneyrac, Catherine Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques Université de Nantes (UN) Institut National de l'Environnement Industriel et des Risques (INERIS) Institut des Sciences Moléculaires (ISM) Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Université Sciences et Technologies - Bordeaux 1-Université Montesquieu - Bordeaux 4-Institut de Chimie du CNRS (INC) Muséum national d'Histoire naturelle (MNHN) Milan, Italy 2011-05-15 https://hal-ineris.archives-ouvertes.fr/ineris-00970779 en eng HAL CCSD ineris-00970779 https://hal-ineris.archives-ouvertes.fr/ineris-00970779 INERIS: EN-2011-104 21. SETAC Europe annual meeting "Ecosystem protection in a sustainable world : a challenge for science and regulation" https://hal-ineris.archives-ouvertes.fr/ineris-00970779 21. SETAC Europe annual meeting "Ecosystem protection in a sustainable world : a challenge for science and regulation", May 2011, Milan, Italy ANGUILLA ANGUILLA ENDOCRINE DISRUPTORS LOIRE ESTUARY REPRODUCTION [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences info:eu-repo/semantics/conferenceObject Conference papers 2011 ftccsdartic 2021-12-12T05:12:54Z Estuaries are ecosystems of high productivity, crucial in the life history of fishes, invertebrates, birds, including commercially important species, but anthropogenic activities such as urban effluents are often the main factors responsible for water quality degradation. Complex mixtures of contaminants are present in these zones and in this context; there is a growing interest in the influence of endocrine disruptor compounds (EDCs) on biota physiology. The Loire estuary runs through important urban sites (Nantes, Saint-Nazaire, etc.) with shipping and industrial activities. Moreover, the Loire basin (117,000 km²) represents more than 1/5 of the French territory and drains a lot of tributaries. The aim of this research is to evaluate the contamination of the Loire estuary by EDCs. Twelve sites along the Loire estuary (from Saint-Nazaire to Ancenis) were selected because of their typology of contamination (agricultural, urban, and industrial) and of their particular configuration (upstream/downstream of an effluent site close to a wastewater treatment plant). The endocrine activities in sediment were followed using various bio-analytical tools (in vitro tests of hormonal activities on cellular cultures). The presence of PAHs and dioxine-like compounds was estimated using the EROD test. The eel Anguilla anguilla was chosen for her ecological representativeness and economical incidence on fishing activities and was collected on 3 sites along the Loire estuary (upstream, intermediate, and downstream). The in situ effects on fish were evaluated by measuring biological variables at the individual level (size, sex, gonads histology, vitellogenin and aromatase). Conference Object Anguilla anguilla Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
institution |
Open Polar |
collection |
Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
op_collection_id |
ftccsdartic |
language |
English |
topic |
ANGUILLA ANGUILLA ENDOCRINE DISRUPTORS LOIRE ESTUARY REPRODUCTION [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences |
spellingShingle |
ANGUILLA ANGUILLA ENDOCRINE DISRUPTORS LOIRE ESTUARY REPRODUCTION [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences Blanchet-Letrouve, Isabelle Fossi-Tankoua, Olivia Poirier, L. Ait-Aissa, Selim Herrenknecht, C. Budzinski, Hélène Baloche, S.B. Dufour, S.D. Mouneyrac, Catherine Evaluation of the contamination of the Loire estuary by endocrine disruptors |
topic_facet |
ANGUILLA ANGUILLA ENDOCRINE DISRUPTORS LOIRE ESTUARY REPRODUCTION [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology [SDE]Environmental Sciences |
description |
Estuaries are ecosystems of high productivity, crucial in the life history of fishes, invertebrates, birds, including commercially important species, but anthropogenic activities such as urban effluents are often the main factors responsible for water quality degradation. Complex mixtures of contaminants are present in these zones and in this context; there is a growing interest in the influence of endocrine disruptor compounds (EDCs) on biota physiology. The Loire estuary runs through important urban sites (Nantes, Saint-Nazaire, etc.) with shipping and industrial activities. Moreover, the Loire basin (117,000 km²) represents more than 1/5 of the French territory and drains a lot of tributaries. The aim of this research is to evaluate the contamination of the Loire estuary by EDCs. Twelve sites along the Loire estuary (from Saint-Nazaire to Ancenis) were selected because of their typology of contamination (agricultural, urban, and industrial) and of their particular configuration (upstream/downstream of an effluent site close to a wastewater treatment plant). The endocrine activities in sediment were followed using various bio-analytical tools (in vitro tests of hormonal activities on cellular cultures). The presence of PAHs and dioxine-like compounds was estimated using the EROD test. The eel Anguilla anguilla was chosen for her ecological representativeness and economical incidence on fishing activities and was collected on 3 sites along the Loire estuary (upstream, intermediate, and downstream). The in situ effects on fish were evaluated by measuring biological variables at the individual level (size, sex, gonads histology, vitellogenin and aromatase). |
author2 |
Université de Nantes - UFR des Sciences Pharmaceutiques et Biologiques Université de Nantes (UN) Institut National de l'Environnement Industriel et des Risques (INERIS) Institut des Sciences Moléculaires (ISM) Centre National de la Recherche Scientifique (CNRS)-École Nationale Supérieure de Chimie et de Physique de Bordeaux (ENSCPB)-Université Sciences et Technologies - Bordeaux 1-Université Montesquieu - Bordeaux 4-Institut de Chimie du CNRS (INC) Muséum national d'Histoire naturelle (MNHN) |
format |
Conference Object |
author |
Blanchet-Letrouve, Isabelle Fossi-Tankoua, Olivia Poirier, L. Ait-Aissa, Selim Herrenknecht, C. Budzinski, Hélène Baloche, S.B. Dufour, S.D. Mouneyrac, Catherine |
author_facet |
Blanchet-Letrouve, Isabelle Fossi-Tankoua, Olivia Poirier, L. Ait-Aissa, Selim Herrenknecht, C. Budzinski, Hélène Baloche, S.B. Dufour, S.D. Mouneyrac, Catherine |
author_sort |
Blanchet-Letrouve, Isabelle |
title |
Evaluation of the contamination of the Loire estuary by endocrine disruptors |
title_short |
Evaluation of the contamination of the Loire estuary by endocrine disruptors |
title_full |
Evaluation of the contamination of the Loire estuary by endocrine disruptors |
title_fullStr |
Evaluation of the contamination of the Loire estuary by endocrine disruptors |
title_full_unstemmed |
Evaluation of the contamination of the Loire estuary by endocrine disruptors |
title_sort |
evaluation of the contamination of the loire estuary by endocrine disruptors |
publisher |
HAL CCSD |
publishDate |
2011 |
url |
https://hal-ineris.archives-ouvertes.fr/ineris-00970779 |
op_coverage |
Milan, Italy |
genre |
Anguilla anguilla |
genre_facet |
Anguilla anguilla |
op_source |
21. SETAC Europe annual meeting "Ecosystem protection in a sustainable world : a challenge for science and regulation" https://hal-ineris.archives-ouvertes.fr/ineris-00970779 21. SETAC Europe annual meeting "Ecosystem protection in a sustainable world : a challenge for science and regulation", May 2011, Milan, Italy |
op_relation |
ineris-00970779 https://hal-ineris.archives-ouvertes.fr/ineris-00970779 INERIS: EN-2011-104 |
_version_ |
1766397692123021312 |