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, Frédérik De Laender

Research output: Contribution to journalArticle

Abstract

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 nonadditive 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.
LanguageEnglish
Number of pages9
JournalEcotoxicology and Environmental Safety
StateAccepted/In press - 2018

Fingerprint

Plankton
Copepoda
Diatoms
Herbicides
Copper
Inorganic Chemicals
Metals
Aquatic Organisms
Food Quality
Food Chain
Agriculture
Inorganic chemicals
Pesticides
Gold
Aquatic organisms
Fatty Acids
Organic chemicals
Fatty acids
Food
Proteins

Keywords

  • food quality
  • generalized linear model
  • plankton
  • species sensitivity
  • biomarkers
  • fatty acids

Cite this

Filimonova, V., De Troch, M., Gonçalves, F., Marques, J. C., Marques, S. M., Gonçalves, A. M. M., & De Laender, F. (Accepted/In press). Effects of a herbicide and copper mixture on the quality of marine plankton.
Filimonova, Valentina ; De Troch, Marleen ; Gonçalves, Fernando ; Marques, João C. ; Marques, Sérgio M. ; Gonçalves, Ana M.M. ; De Laender, Frédérik. / Effects of a herbicide and copper mixture on the quality of marine plankton. In: Ecotoxicology and Environmental Safety. 2018
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Filimonova, V, De Troch, M, Gonçalves, F, Marques, JC, Marques, SM, Gonçalves, AMM & De Laender, F 2018, 'Effects of a herbicide and copper mixture on the quality of marine plankton' Ecotoxicology and Environmental Safety.

Effects of a herbicide and copper mixture on the quality of marine plankton. / Filimonova, Valentina; De Troch, Marleen; Gonçalves, Fernando; Marques, João C.; Marques, Sérgio M.; Gonçalves, Ana M.M.; De Laender, Frédérik.

In: Ecotoxicology and Environmental Safety, 2018.

Research output: Contribution to journalArticle

TY - JOUR

T1 - Effects of a herbicide and copper mixture on the quality of marine plankton

AU - Filimonova,Valentina

AU - De Troch,Marleen

AU - Gonçalves,Fernando

AU - Marques,João C.

AU - Marques,Sérgio M.

AU - Gonçalves,Ana M.M.

AU - De Laender,Frédérik

PY - 2018

Y1 - 2018

N2 - 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 nonadditive 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.

AB - 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 nonadditive 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.

KW - food quality

KW - generalized linear model

KW - plankton

KW - species sensitivity

KW - biomarkers

KW - fatty acids

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Filimonova V, De Troch M, Gonçalves F, Marques JC, Marques SM, Gonçalves AMM et al. Effects of a herbicide and copper mixture on the quality of marine plankton. Ecotoxicology and Environmental Safety. 2018.