Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches.
Pesticides have enabled humankind to protect its crops from pests, intensifying thus the crop yields to sustain the growing population. However, pesticides often end up in aquatic water bodies, e.g. via field runoff, where they may harm non-target organisms. The environmental concentrations of pesti...
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Other Authors: | , , , , , , , |
Format: | Doctoral or Postdoctoral Thesis |
Language: | English |
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HAL CCSD
2020
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Online Access: | https://tel.archives-ouvertes.fr/tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876/document https://tel.archives-ouvertes.fr/tel-03235876/file/ROZMANKOVA_ELISKA_2020.pdf |
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ftccsdartic:oai:HAL:tel-03235876v1 |
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record_format |
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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 |
Ecotoxicity Embryo-Larval stages Pacific oyster Pesticide Sublethal effect Zebrafish Ecotoxicité Effet sublétal Huître creuse Poisson zèbre Stades embryo-Larvaires [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
Ecotoxicity Embryo-Larval stages Pacific oyster Pesticide Sublethal effect Zebrafish Ecotoxicité Effet sublétal Huître creuse Poisson zèbre Stades embryo-Larvaires [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Rozmankova, Eliška Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. |
topic_facet |
Ecotoxicity Embryo-Larval stages Pacific oyster Pesticide Sublethal effect Zebrafish Ecotoxicité Effet sublétal Huître creuse Poisson zèbre Stades embryo-Larvaires [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
Pesticides have enabled humankind to protect its crops from pests, intensifying thus the crop yields to sustain the growing population. However, pesticides often end up in aquatic water bodies, e.g. via field runoff, where they may harm non-target organisms. The environmental concentrations of pesticides are often considered safe for aquatic ecosystems although they might induce sublethal changes in exposed organisms. Moreover, the organisms are generally not dealing with only one pesticide issued from a nearby field but with a complex mixture of various chemical compounds, interacting amongst themselves, and creating a toxic cocktail with unknown and hardly predictable impacts. These compounds, each with different environmental fate, eventually degrade and form more or less toxic and persistent metabolites aggravating the complexity of the mixtures.This dissertation thesis summarizes the state-of-the-art in pesticide mixture toxicity research and is composed of five research articles dealing with sublethal effects of selected pesticides on non-target aquatic species. Vulnerable embryo-larval stages of two model organisms: freshwater zebrafish (Danio rerio) and euryhaline bivalve Pacific oyster (Magallana gigas) were used to assess the sublethal toxicity of especially environmental concentrations (detected in selected European water bodies) of commonly used herbicide S metolachlor with its two metabolites metolachlor oxanilic acid and metolachlor ethanesulfonic acid, insecticide imidacloprid, and fungicide propiconazole, alone and in a mixture. A complementary in situ approach was carried out to evaluate a real impact on early-life stages of the Pacific oyster in Arcachon Bay in France, a final recipient of various substances including pesticides from respective watersheds.First, zebrafish embryo-larval stages were observed to be highly sensitive to environmentally relevant concentrations of propiconazole and to a lesser extent also to imidacloprid. In contrast, S-metolachlor and its metabolites had almost no ... |
author2 |
UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Université de Bordeaux Masarykova univerzita (Brno, République tchèque) Patrice Gonzalez Luděk Bláha |
format |
Doctoral or Postdoctoral Thesis |
author |
Rozmankova, Eliška |
author_facet |
Rozmankova, Eliška |
author_sort |
Rozmankova, Eliška |
title |
Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. |
title_short |
Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. |
title_full |
Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. |
title_fullStr |
Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. |
title_full_unstemmed |
Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. |
title_sort |
currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? laboratory and in situ approaches. |
publisher |
HAL CCSD |
publishDate |
2020 |
url |
https://tel.archives-ouvertes.fr/tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876/document https://tel.archives-ouvertes.fr/tel-03235876/file/ROZMANKOVA_ELISKA_2020.pdf |
geographic |
Pacific |
geographic_facet |
Pacific |
genre |
Pacific oyster |
genre_facet |
Pacific oyster |
op_source |
https://tel.archives-ouvertes.fr/tel-03235876 Ecotoxicology. Université de Bordeaux; Masarykova univerzita (Brno, République tchèque), 2020. English. ⟨NNT : 2020BORD0301⟩ |
op_relation |
NNT: 2020BORD0301 tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876/document https://tel.archives-ouvertes.fr/tel-03235876/file/ROZMANKOVA_ELISKA_2020.pdf |
op_rights |
info:eu-repo/semantics/OpenAccess |
_version_ |
1766162029791412224 |
spelling |
ftccsdartic:oai:HAL:tel-03235876v1 2023-05-15T17:54:17+02:00 Currently used pesticides and their mixtures : what are the risks to non-target aquatic organisms? Laboratory and in situ approaches. Pesticides largement utilisés et leurs mélanges : quels risques pour les organismes aquatiques non-cibles ? Approche en laboratoire et in situ. Rozmankova, Eliška UMR 5805 Environnements et Paléoenvironnements Océaniques et Continentaux (EPOC) Observatoire aquitain des sciences de l'univers (OASU) Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-Université Sciences et Technologies - Bordeaux 1-Institut national des sciences de l'Univers (INSU - CNRS)-Centre National de la Recherche Scientifique (CNRS)-École pratique des hautes études (EPHE) Université Paris sciences et lettres (PSL)-Université Paris sciences et lettres (PSL)-Centre National de la Recherche Scientifique (CNRS) Université de Bordeaux Masarykova univerzita (Brno, République tchèque) Patrice Gonzalez Luděk Bláha 2020-12-17 https://tel.archives-ouvertes.fr/tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876/document https://tel.archives-ouvertes.fr/tel-03235876/file/ROZMANKOVA_ELISKA_2020.pdf en eng HAL CCSD NNT: 2020BORD0301 tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876 https://tel.archives-ouvertes.fr/tel-03235876/document https://tel.archives-ouvertes.fr/tel-03235876/file/ROZMANKOVA_ELISKA_2020.pdf info:eu-repo/semantics/OpenAccess https://tel.archives-ouvertes.fr/tel-03235876 Ecotoxicology. Université de Bordeaux; Masarykova univerzita (Brno, République tchèque), 2020. English. ⟨NNT : 2020BORD0301⟩ Ecotoxicity Embryo-Larval stages Pacific oyster Pesticide Sublethal effect Zebrafish Ecotoxicité Effet sublétal Huître creuse Poisson zèbre Stades embryo-Larvaires [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/doctoralThesis Theses 2020 ftccsdartic 2021-11-21T00:01:07Z Pesticides have enabled humankind to protect its crops from pests, intensifying thus the crop yields to sustain the growing population. However, pesticides often end up in aquatic water bodies, e.g. via field runoff, where they may harm non-target organisms. The environmental concentrations of pesticides are often considered safe for aquatic ecosystems although they might induce sublethal changes in exposed organisms. Moreover, the organisms are generally not dealing with only one pesticide issued from a nearby field but with a complex mixture of various chemical compounds, interacting amongst themselves, and creating a toxic cocktail with unknown and hardly predictable impacts. These compounds, each with different environmental fate, eventually degrade and form more or less toxic and persistent metabolites aggravating the complexity of the mixtures.This dissertation thesis summarizes the state-of-the-art in pesticide mixture toxicity research and is composed of five research articles dealing with sublethal effects of selected pesticides on non-target aquatic species. Vulnerable embryo-larval stages of two model organisms: freshwater zebrafish (Danio rerio) and euryhaline bivalve Pacific oyster (Magallana gigas) were used to assess the sublethal toxicity of especially environmental concentrations (detected in selected European water bodies) of commonly used herbicide S metolachlor with its two metabolites metolachlor oxanilic acid and metolachlor ethanesulfonic acid, insecticide imidacloprid, and fungicide propiconazole, alone and in a mixture. A complementary in situ approach was carried out to evaluate a real impact on early-life stages of the Pacific oyster in Arcachon Bay in France, a final recipient of various substances including pesticides from respective watersheds.First, zebrafish embryo-larval stages were observed to be highly sensitive to environmentally relevant concentrations of propiconazole and to a lesser extent also to imidacloprid. In contrast, S-metolachlor and its metabolites had almost no ... Doctoral or Postdoctoral Thesis Pacific oyster Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) Pacific |