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...

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Published in:Aquatic Toxicology
Main Authors: Pouil, Simon, Clausing, Rachel, J, Metian, Marc, Bustamante, Paco, Dechraoui Bottein, Marie-Yasmine
Other Authors: 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
Language:English
Published: HAL CCSD 2018
Subjects:
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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spelling 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
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