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://doi.org/10.1007/s10646-007-0190-9 https://hal.univ-brest.fr/hal-00675562 |
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fttriple:oai:gotriple.eu:10670/1.5gf44i 2023-05-15T15:58:20+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 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 2008-01-01 https://doi.org/10.1007/s10646-007-0190-9 https://hal.univ-brest.fr/hal-00675562 en eng HAL CCSD Springer Verlag hal-00675562 doi:10.1007/s10646-007-0190-9 10670/1.5gf44i https://hal.univ-brest.fr/hal-00675562 undefined Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0963-9292 EISSN: 1573-3017 Ecotoxicology Ecotoxicology, Springer Verlag, 2008, 17 (4), pp.235-245. ⟨10.1007/s10646-007-0190-9⟩ microcosm oyster toxicity pesticide bentazon epoxiconazole envir geo Journal Article https://vocabularies.coar-repositories.org/resource_types/c_6501/ 2008 fttriple https://doi.org/10.1007/s10646-007-0190-9 2023-01-22T17:40:07Z 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 Unknown Ecotoxicology 17 4 235 245 |
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Open Polar |
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language |
English |
topic |
microcosm oyster toxicity pesticide bentazon epoxiconazole envir geo |
spellingShingle |
microcosm oyster toxicity pesticide bentazon epoxiconazole envir geo 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 envir geo |
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 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://doi.org/10.1007/s10646-007-0190-9 https://hal.univ-brest.fr/hal-00675562 |
genre |
Crassostrea gigas |
genre_facet |
Crassostrea gigas |
op_source |
Hyper Article en Ligne - Sciences de l'Homme et de la Société ISSN: 0963-9292 EISSN: 1573-3017 Ecotoxicology Ecotoxicology, Springer Verlag, 2008, 17 (4), pp.235-245. ⟨10.1007/s10646-007-0190-9⟩ |
op_relation |
hal-00675562 doi:10.1007/s10646-007-0190-9 10670/1.5gf44i https://hal.univ-brest.fr/hal-00675562 |
op_rights |
undefined |
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 |
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1766394072773165056 |