In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas)
International audience Effects of the herbicide Basamais (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plate...
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Online Access: | https://hal.univ-brest.fr/hal-00675562 https://doi.org/10.1007/s10646-007-0190-9 |
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ftccsdartic:oai:HAL:hal-00675562v1 2023-05-15T15:58:21+02:00 In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) Stachowski-Haberkorn, Sabine Quiniou, Françoise Nedelec, Morgane Robert, René Limon, Gwendolina De La Broise, Denis Laboratoire Universitaire de Microbiologie Appliquée de Quimper (LUMAQ) Université de Brest (UBO) Biogéochimie et Ecotoxicologie (IFREMER BE) Institut Français de Recherche pour l'Exploitation de la Mer - Atlantique (IFREMER Atlantique) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) AGROCAMPUS OUEST Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Laboratoire de Physiologie des Invertébrés (LPI) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut Départemental d'analyse de conseil et d'expertise en Hygiène alimentaire, Eau et environnement et Santé Animale (IDHESA) IDHESA 2008 https://hal.univ-brest.fr/hal-00675562 https://doi.org/10.1007/s10646-007-0190-9 en eng HAL CCSD Springer Verlag info:eu-repo/semantics/altIdentifier/doi/10.1007/s10646-007-0190-9 hal-00675562 https://hal.univ-brest.fr/hal-00675562 doi:10.1007/s10646-007-0190-9 ISSN: 0963-9292 EISSN: 1573-3017 Ecotoxicology https://hal.univ-brest.fr/hal-00675562 Ecotoxicology, Springer Verlag, 2008, 17 (4), pp.235-245. ⟨10.1007/s10646-007-0190-9⟩ microcosm oyster toxicity pesticide bentazon epoxiconazole [SDE]Environmental Sciences info:eu-repo/semantics/article Journal articles 2008 ftccsdartic https://doi.org/10.1007/s10646-007-0190-9 2021-10-17T01:49:06Z International audience Effects of the herbicide Basamais (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plates, was immersed in glass bottles filled with 200 mu m filtered seawater. Bottles were maintained underwater at 6 m depth and their water content changed every other day. Growth, measured as shell area index increase, was 126 +/- 4% in the control bottles. While no growth differences were observed between control and individual pesticide treatments at 10 mu g l(-1), oysters treated with a mix of 10 mu g l(-1) Opus and 10 mu g l(-1) Basamais showed a 50% growth reduction compared with the control (P < 0.0001), suggesting a synergistic effect of these contaminants. Laboratory controls in microcosms maintained in a water bath with filtered natural light, were not significantly different from in-situ microcosm controls in the field, for organic weight content or growth. This in-situ experiment in microcosms allowed us to conclude that: (1) oyster spat can achieve significant growth in bottles immersed in situ without supplementary food; (2) this microcosm system is reliable and easy to use for environmental toxicity tests with C. gigas spat; (3) such microcosm systems can also be run in a laboratory water bath instead of more technically difficult immersed field experiments; (4) the synergistic effect observed here, at a concentration simulating a peak agricultural runoff event, suggests that the impacts of pesticides could be a real threat for oysters in estuarine areas. Article in Journal/Newspaper Crassostrea gigas Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Ecotoxicology 17 4 235 245 |
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 |
microcosm oyster toxicity pesticide bentazon epoxiconazole [SDE]Environmental Sciences |
spellingShingle |
microcosm oyster toxicity pesticide bentazon epoxiconazole [SDE]Environmental Sciences Stachowski-Haberkorn, Sabine Quiniou, Françoise Nedelec, Morgane Robert, René Limon, Gwendolina De La Broise, Denis In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) |
topic_facet |
microcosm oyster toxicity pesticide bentazon epoxiconazole [SDE]Environmental Sciences |
description |
International audience Effects of the herbicide Basamais (bentazon) and the fungicide Opus (epoxiconazole) on oyster spat (Crassostrea gigas) were assessed using in-situ microcosms in a field experiment lasting 13 days. Six-week-old hatchery spat (mean size 1.1 mm), previously collected on PVC plates, was immersed in glass bottles filled with 200 mu m filtered seawater. Bottles were maintained underwater at 6 m depth and their water content changed every other day. Growth, measured as shell area index increase, was 126 +/- 4% in the control bottles. While no growth differences were observed between control and individual pesticide treatments at 10 mu g l(-1), oysters treated with a mix of 10 mu g l(-1) Opus and 10 mu g l(-1) Basamais showed a 50% growth reduction compared with the control (P < 0.0001), suggesting a synergistic effect of these contaminants. Laboratory controls in microcosms maintained in a water bath with filtered natural light, were not significantly different from in-situ microcosm controls in the field, for organic weight content or growth. This in-situ experiment in microcosms allowed us to conclude that: (1) oyster spat can achieve significant growth in bottles immersed in situ without supplementary food; (2) this microcosm system is reliable and easy to use for environmental toxicity tests with C. gigas spat; (3) such microcosm systems can also be run in a laboratory water bath instead of more technically difficult immersed field experiments; (4) the synergistic effect observed here, at a concentration simulating a peak agricultural runoff event, suggests that the impacts of pesticides could be a real threat for oysters in estuarine areas. |
author2 |
Laboratoire Universitaire de Microbiologie Appliquée de Quimper (LUMAQ) Université de Brest (UBO) Biogéochimie et Ecotoxicologie (IFREMER BE) Institut Français de Recherche pour l'Exploitation de la Mer - Atlantique (IFREMER Atlantique) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER)-Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) AGROCAMPUS OUEST Institut national d'enseignement supérieur pour l'agriculture, l'alimentation et l'environnement (Institut Agro) Laboratoire de Physiologie des Invertébrés (LPI) Institut Français de Recherche pour l'Exploitation de la Mer (IFREMER) Institut Départemental d'analyse de conseil et d'expertise en Hygiène alimentaire, Eau et environnement et Santé Animale (IDHESA) IDHESA |
format |
Article in Journal/Newspaper |
author |
Stachowski-Haberkorn, Sabine Quiniou, Françoise Nedelec, Morgane Robert, René Limon, Gwendolina De La Broise, Denis |
author_facet |
Stachowski-Haberkorn, Sabine Quiniou, Françoise Nedelec, Morgane Robert, René Limon, Gwendolina De La Broise, Denis |
author_sort |
Stachowski-Haberkorn, Sabine |
title |
In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) |
title_short |
In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) |
title_full |
In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) |
title_fullStr |
In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) |
title_full_unstemmed |
In-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (Crassostrea gigas) |
title_sort |
in-situ microcosms, a tool for assessment of pesticide impacts on oyster spat (crassostrea gigas) |
publisher |
HAL CCSD |
publishDate |
2008 |
url |
https://hal.univ-brest.fr/hal-00675562 https://doi.org/10.1007/s10646-007-0190-9 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
ISSN: 0963-9292 EISSN: 1573-3017 Ecotoxicology https://hal.univ-brest.fr/hal-00675562 Ecotoxicology, Springer Verlag, 2008, 17 (4), pp.235-245. ⟨10.1007/s10646-007-0190-9⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1007/s10646-007-0190-9 hal-00675562 https://hal.univ-brest.fr/hal-00675562 doi:10.1007/s10646-007-0190-9 |
op_doi |
https://doi.org/10.1007/s10646-007-0190-9 |
container_title |
Ecotoxicology |
container_volume |
17 |
container_issue |
4 |
container_start_page |
235 |
op_container_end_page |
245 |
_version_ |
1766394090031677440 |