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 originale | Anglais |
|---|---|
| Pages (de - à) | 9-17 |
| Nombre de pages | 9 |
| journal | Ecotoxicology and Environmental Safety |
| Volume | 156 |
| Les DOIs | |
| Etat de la publication | Publié - 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 fonds | Numéro du bailleur de fonds |
|---|---|
| BOF-UGent | |
| FWO-Flanders | 1523814N |
| Fundação para a Ciência e a Tecnologia | UID/AMB//50017/2013, UID/MAR/04292/2013, SFRH/BPD/97210/2013, SFRH/BPD/112803/2015 |
| Universiteit Gent | |
| European Social Fund |
SDG des Nations Unies
Ce résultat contribue à ou aux Objectifs de développement durable suivants
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SDG 3 Bonne santé et bien-être
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SDG 12 Consommation et production responsables
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SDG 14 Vie sous l’eau
Empreinte digitale
Examiner les sujets de recherche de « Effects of a herbicide and copper mixture on the quality of marine plankton ». Ensemble, ils forment une empreinte digitale unique.Projets
- 1 Terminé
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Biodiversity and ecosystem functioning in stressed ecosystems
De Laender, F. (Promoteur), Mensens, C. (Chercheur), De Troch, M. (Responsable du Projet) & Janssen, C. (Responsable du Projet)
1/10/12 → 30/09/15
Projet: Projet de thèse
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