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Effects of a herbicide and copper mixture on the quality of marine plankton

  • Valentina Filimonova
  • , Marleen De Troch
  • , Fernando Gonçalves
  • , João C. Marques
  • , Sérgio M. Marques
  • , Ana M.M. Gonçalves
  • , Frederik De Laender

Résultats de recherche: Contribution à un journal/une revueArticleRevue par des pairs

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Résumé

Pesticides and metals are often used in agriculture and are therefore often simultaneously discharged to nearby estuarine and marine areas. The effects of this organic-inorganic chemical mixture on food quality of aquatic organisms are currently unknown. In this study we test if a mixture of copper (inorganic) and the herbicide Primextra® Gold TZ (organic) affects the quality of the diatom Thalassiosira weissflogii and the copepod Acartia tonsa – two key species that fuel the local food-web. We quantified quality (i.e. energy content as food for the next trophic level) in terms of fatty acids, proteins and thiobarbituric acid reacting substances. We found non-additive effects (positive and negative) of the metal-herbicide mixture on the diatom and copepod species. In general, nutritionally important biochemical parameters of Acartia tonsa were most sensitive to the chemical stressors.

langue originaleAnglais
Pages (de - à)9-17
Nombre de pages9
journalEcotoxicology and Environmental Safety
Volume156
Les DOIs
Etat de la publicationPublié - 1 juil. 2018

Financement

This work was funded through the Erasmus Mundus MARES Joint Doctorate programme ( FPA 2011-0016 ) ( www.mares-eu.org ). This study had also the support of Portuguese Foundation for Science and Technology (FCT, Portugal), through the strategic project UID/MAR/04292/2013 , granted to MARE, and UID/AMB//50017/2013 , granted to CESAM. A. M. M. Gonçalves and Sérgio M. Marques also thank FCT for financial support through the post-doctoral grants SFRH/BPD/97210/2013 and SFRH/BPD/112803/2015 respectively, co-funded by the Human Potential Operational Programme (National Strategic Reference Framework 2007–2013 and 2014–2020), European Social Fund (EU) and the program POPH/FSE. The FA analyses were supported by FWO-Flanders (research grant 1523814N ) and by the Special Research Fund of Ghent University (BOF-UGent) in the form of the starting grant ‘Energy transfer at the basis of marine food webs in a changing world’, both awarded to M. De Troch.

Bailleurs de fondsNuméro du bailleur de fonds
BOF-UGent
FWO-Flanders1523814N
Fundação para a Ciência e a TecnologiaUID/AMB//50017/2013, UID/MAR/04292/2013, SFRH/BPD/97210/2013, SFRH/BPD/112803/2015
Universiteit Gent
European Social Fund

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    Ce résultat contribue à ou aux Objectifs de développement durable suivants

    1. SDG 3 - Bonne santé et bien-être
      SDG 3 Bonne santé et bien-être
    2. SDG 12 - Consommation et production responsables
      SDG 12 Consommation et production responsables
    3. SDG 14 - Vie sous l’eau
      SDG 14 Vie sous l’eau

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