An individual-based model of zebrafish population dynamics accounting for energy dynamics.
Developing population dynamics models for zebrafish is crucial in order to extrapolate from toxicity data measured at the organism level to biological levels relevant to support and enhance ecological risk assessment. To achieve this, a dynamic energy budget for individual zebrafish (DEB model) was coupled to an individual based model of zebrafish population dynamics (IBM model). Next, we fitted the DEB model to new experimental data on zebrafish growth and reproduction thus improving existing models. We further analysed the DEB-model and DEB-IBM using a sensitivity analysis. Finally, the predictions of the DEB-IBM were compared to existing observations on natural zebrafish populations and the predicted population dynamics are realistic. While our zebrafish DEB-IBM model can still be improved by acquiring new experimental data on the most uncertain processes (e.g. survival or feeding), it can already serve to predict the impact of compounds at the population level.
Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
Rémy
R
Beaudouin
Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
Benoit
B
Goussen
Unité Ecotoxicologie in vitro et in vivo (ECOT), Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
Benjamin
B
Piccini
Centre for Ocean Life, National Institute of Aquatic Resources, Technical University of Denmark, Charlottenlund, Denmark.
Starrlight
S
Augustine
CTIS, Rillieux La Pape, France.
James
J
Devillers
Unité Ecotoxicologie in vitro et in vivo (ECOT), Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France.
François
F
Brion
Unité Modèles pour l'Ecotoxicologie et la Toxicologie (METO), Institut National de l'Environnement Industriel et des Risques (INERIS), Verneuil en Halatte, France; AgroParisTech, Paris, France.
Alexandre R R
AR
Péry
D000465:Algorithms; D000818:Animals; D008962:Models, Theoretical; D011157:Population Dynamics; D015027:Zebrafish