The role of marine biotoxins on the trophic transfer of Mn and Zn in fish
International audience Essential nutrients are critical for physiological processes of organisms. In fish, they are obtained primarily from the diet, and their transfer and accumulation are known to be impacted by environmental variables such as water temperature, pH and salinity, as well as by diet...
Published in: | Aquatic Toxicology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://hal.science/hal-02015003 https://hal.science/hal-02015003/document https://hal.science/hal-02015003/file/Pouil%20et%20al%202018%20AQUATOX.pdf https://doi.org/10.1016/j.aquatox.2018.03.004 |
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ftunivrochelle:oai:HAL:hal-02015003v1 2024-02-11T10:08:27+01:00 The role of marine biotoxins on the trophic transfer of Mn and Zn in fish Pouil, Simon Clausing, Rachel, J Metian, Marc Bustamante, Paco Dechraoui Bottein, Marie-Yasmine Environment Laboratories (IAEA) International Atomic Energy Agency Vienna (IAEA) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) 2018 https://hal.science/hal-02015003 https://hal.science/hal-02015003/document https://hal.science/hal-02015003/file/Pouil%20et%20al%202018%20AQUATOX.pdf https://doi.org/10.1016/j.aquatox.2018.03.004 en eng HAL CCSD Elsevier info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquatox.2018.03.004 hal-02015003 https://hal.science/hal-02015003 https://hal.science/hal-02015003/document https://hal.science/hal-02015003/file/Pouil%20et%20al%202018%20AQUATOX.pdf doi:10.1016/j.aquatox.2018.03.004 info:eu-repo/semantics/OpenAccess ISSN: 0166-445X Aquatic Toxicology https://hal.science/hal-02015003 Aquatic Toxicology, 2018, 198, pp.198-205. ⟨10.1016/j.aquatox.2018.03.004⟩ Brevetoxins Teleost Metals Multiple stressors HABs Nuclear applications [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology info:eu-repo/semantics/article Journal articles 2018 ftunivrochelle https://doi.org/10.1016/j.aquatox.2018.03.004 2024-01-23T23:35:16Z International audience Essential nutrients are critical for physiological processes of organisms. In fish, they are obtained primarily from the diet, and their transfer and accumulation are known to be impacted by environmental variables such as water temperature, pH and salinity, as well as by diet composition and matrices. Yet, prey items consumed by fish may also contain toxic compounds such as marine toxins associated with harmful algae. These biotoxins have the potential to affect essential trace element assimilation in fish through chemical interactions such as the formation of trace element-toxin complexes or by affecting general fish physiology as in the modification of ion-specific transport pathways. We assessed the influence of dietary exposure to brevetoxins (PbTxs), ichthyotoxic neurotoxins produced by the dinoflagellate Karenia brevis, on trophic transfer of two essential trace elements, Mn and Zn, in a fish model. Using ecologically relevant concentrations of PbTxs and trace elements in controlled laboratory conditions, juvenile turbots Scophthalmus maximus were given food containing PbTxs before or at the same time as a feeding with radiotracers of the chosen essential elements (54 Mn and 65 Zn). Treatments included simultaneous exposure (PbTxs + 54 Mn + 65 Zn) in a single-feeding, 3-week daily pre-exposure to dietary PbTx followed by a single feeding with 54 Mn and 65 Zn, and a control (54 Mn and 65 Zn only). After a 21-day depuration period, turbot tissue brevetoxin levels were quantified and assimilation efficiencies of 54 Mn and 65 Zn were assessed. PbTxs were found in turbot tissues in each exposure treatment, demonstrating dietary trophic transfer of these toxins; yet, no differences in assimilation efficiencies of Mn or Zn were found between treatments or the control (p > 0.05). These results indicate that, in our experimental conditions, PbTx exposure does not significantly affect the trophic transfer of Mn and Zn in fish. Article in Journal/Newspaper Scophthalmus maximus Turbot HAL - Université de La Rochelle Aquatic Toxicology 198 198 205 |
institution |
Open Polar |
collection |
HAL - Université de La Rochelle |
op_collection_id |
ftunivrochelle |
language |
English |
topic |
Brevetoxins Teleost Metals Multiple stressors HABs Nuclear applications [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
spellingShingle |
Brevetoxins Teleost Metals Multiple stressors HABs Nuclear applications [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology Pouil, Simon Clausing, Rachel, J Metian, Marc Bustamante, Paco Dechraoui Bottein, Marie-Yasmine The role of marine biotoxins on the trophic transfer of Mn and Zn in fish |
topic_facet |
Brevetoxins Teleost Metals Multiple stressors HABs Nuclear applications [SDV.TOX.ECO]Life Sciences [q-bio]/Toxicology/Ecotoxicology |
description |
International audience Essential nutrients are critical for physiological processes of organisms. In fish, they are obtained primarily from the diet, and their transfer and accumulation are known to be impacted by environmental variables such as water temperature, pH and salinity, as well as by diet composition and matrices. Yet, prey items consumed by fish may also contain toxic compounds such as marine toxins associated with harmful algae. These biotoxins have the potential to affect essential trace element assimilation in fish through chemical interactions such as the formation of trace element-toxin complexes or by affecting general fish physiology as in the modification of ion-specific transport pathways. We assessed the influence of dietary exposure to brevetoxins (PbTxs), ichthyotoxic neurotoxins produced by the dinoflagellate Karenia brevis, on trophic transfer of two essential trace elements, Mn and Zn, in a fish model. Using ecologically relevant concentrations of PbTxs and trace elements in controlled laboratory conditions, juvenile turbots Scophthalmus maximus were given food containing PbTxs before or at the same time as a feeding with radiotracers of the chosen essential elements (54 Mn and 65 Zn). Treatments included simultaneous exposure (PbTxs + 54 Mn + 65 Zn) in a single-feeding, 3-week daily pre-exposure to dietary PbTx followed by a single feeding with 54 Mn and 65 Zn, and a control (54 Mn and 65 Zn only). After a 21-day depuration period, turbot tissue brevetoxin levels were quantified and assimilation efficiencies of 54 Mn and 65 Zn were assessed. PbTxs were found in turbot tissues in each exposure treatment, demonstrating dietary trophic transfer of these toxins; yet, no differences in assimilation efficiencies of Mn or Zn were found between treatments or the control (p > 0.05). These results indicate that, in our experimental conditions, PbTx exposure does not significantly affect the trophic transfer of Mn and Zn in fish. |
author2 |
Environment Laboratories (IAEA) International Atomic Energy Agency Vienna (IAEA) LIttoral ENvironnement et Sociétés (LIENSs) La Rochelle Université (ULR)-Centre National de la Recherche Scientifique (CNRS) |
format |
Article in Journal/Newspaper |
author |
Pouil, Simon Clausing, Rachel, J Metian, Marc Bustamante, Paco Dechraoui Bottein, Marie-Yasmine |
author_facet |
Pouil, Simon Clausing, Rachel, J Metian, Marc Bustamante, Paco Dechraoui Bottein, Marie-Yasmine |
author_sort |
Pouil, Simon |
title |
The role of marine biotoxins on the trophic transfer of Mn and Zn in fish |
title_short |
The role of marine biotoxins on the trophic transfer of Mn and Zn in fish |
title_full |
The role of marine biotoxins on the trophic transfer of Mn and Zn in fish |
title_fullStr |
The role of marine biotoxins on the trophic transfer of Mn and Zn in fish |
title_full_unstemmed |
The role of marine biotoxins on the trophic transfer of Mn and Zn in fish |
title_sort |
role of marine biotoxins on the trophic transfer of mn and zn in fish |
publisher |
HAL CCSD |
publishDate |
2018 |
url |
https://hal.science/hal-02015003 https://hal.science/hal-02015003/document https://hal.science/hal-02015003/file/Pouil%20et%20al%202018%20AQUATOX.pdf https://doi.org/10.1016/j.aquatox.2018.03.004 |
genre |
Scophthalmus maximus Turbot |
genre_facet |
Scophthalmus maximus Turbot |
op_source |
ISSN: 0166-445X Aquatic Toxicology https://hal.science/hal-02015003 Aquatic Toxicology, 2018, 198, pp.198-205. ⟨10.1016/j.aquatox.2018.03.004⟩ |
op_relation |
info:eu-repo/semantics/altIdentifier/doi/10.1016/j.aquatox.2018.03.004 hal-02015003 https://hal.science/hal-02015003 https://hal.science/hal-02015003/document https://hal.science/hal-02015003/file/Pouil%20et%20al%202018%20AQUATOX.pdf doi:10.1016/j.aquatox.2018.03.004 |
op_rights |
info:eu-repo/semantics/OpenAccess |
op_doi |
https://doi.org/10.1016/j.aquatox.2018.03.004 |
container_title |
Aquatic Toxicology |
container_volume |
198 |
container_start_page |
198 |
op_container_end_page |
205 |
_version_ |
1790607801401212928 |