Comparing single-feeding and multi-feeding approach for experimentally assessing trophic transfer of metals in fish - Archive ouverte HAL Accéder directement au contenu
Article Dans Une Revue Environmental Toxicology and Chemistry Année : 2017

Comparing single-feeding and multi-feeding approach for experimentally assessing trophic transfer of metals in fish

Michel Warnau
  • Fonction : Auteur
  • PersonId : 843445
François Oberhänsli
  • Fonction : Auteur
  • PersonId : 849795
Jean-Louis Teyssié
  • Fonction : Auteur
  • PersonId : 843443
Paco Bustamante
Marc Metian
  • Fonction : Auteur
  • PersonId : 864449

Résumé

Diet is an important pathway for metal uptake in marine organisms, and assimilation efficiency (AE) is one of the most relevant parameter to quantify trophic transfer of metals along aquatic food webs. The most commonly used method to estimate this parameter is pulse-chase feeding using radiolabeled food. This approach is, however, based on several assumptions that are not always tested in experimental context. The present work aimed at validating the approach by assessing single-feeding and multiple-feeding approaches, using a model species (the turbot Scophthalmus maximus). Using the kinetic data obtained from the single-feeding experiment, we tested whether the reconstruction of a multi-feeding was consistent with data provided by an actual multi-feeding performed under the same experimental conditions. Our results validated the single-feeding approach.

Domaines

Ecotoxicologie
Fichier principal
Vignette du fichier
Pouil et al 2017 ETC.pdf (879.75 Ko) Télécharger le fichier
Origine : Fichiers produits par l'(les) auteur(s)
Loading...

Dates et versions

hal-01694264 , version 1 (27-01-2018)

Identifiants

Citer

Simon Pouil, Michel Warnau, François Oberhänsli, Jean-Louis Teyssié, Paco Bustamante, et al.. Comparing single-feeding and multi-feeding approach for experimentally assessing trophic transfer of metals in fish. Environmental Toxicology and Chemistry, 2017, 36 (5), pp.1227-1234. ⟨10.1002/etc.3646⟩. ⟨hal-01694264⟩

Collections

CNRS UNIV-ROCHELLE
50 Consultations
172 Téléchargements

Altmetric

Partager

Gmail Facebook X LinkedIn More