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A bioenergetics model for juvenile flounder Platichthys flesus Stevens, M.; Maes, J.; Ollevier, F.P. (2006). A bioenergetics model for juvenile flounder Platichthys flesus, in: Stevens, M. Intertidal and basin-wide habitat use of fishes in the Scheldt estuary = Getij- en bekkengebonden habitatgebruik door vissen in het Schelde-estuarium. pp. 81-92 In: Stevens, M. (2006). Intertidal and basin-wide habitat use of fishes in the Scheldt estuary = Getij- en bekkengebonden habitatgebruik door vissen in het Schelde-estuarium. PhD Thesis. Katholieke Universiteit Leuven, Laboratorium voor Aquatische Ecologie: Heverlee. ISBN 978-90-8649-073-8. 150 pp. Is gerelateerd aan: Stevens, M.; Maes, J.; Ollevier, F.P. (2006). A bioenergetics model for juvenile flounder Platichthys flesus. J. Appl. Ichthyol. 22(1): 79-84. https://dx.doi.org/10.1111/j.1439-0426.2006.00708.x, meer

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Beschikbaar in	Auteurs
VLIZ: Open Marine Archive 114522 [ download pdf ]

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Trefwoorden

Feeding Population functions > Growth Platichthys flesus (Linnaeus, 1758) [WoRMS] ANE, British Isles, Scotland, Grampian, Ythan Estu [Marine Regions] Marien/Kust; Zoet water

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Project	Top | Auteurs
Habitat quality of flounder (Platichthys flesus) in the Scheldt estuary: a field and modelling study

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Auteurs		Top
Stevens, M. Maes, J. Ollevier, F.P.

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Abstract

Despite the numerous physiological studies on flatfish and their economic and ecologic importance, only a few attempts have been made to construct a bioenergetics model for these species. Here we present the first bioenergetics model for European flounder (Platichthys flesus), using experimentally derived parameter values. We tested model performance using literature derived field-based estimates of food consumption and growth rates of an estuarine flounder population in the Ythan estuary, Scotland. The model was applied to four age-classes of flounder (age 0–3). Sensitivity of model predictions to parameter perturbation was estimated using error analysis. The fit between observed and predicted series was evaluated using three statistical methods: partitioning mean squared error, a reliability index (RI) and an index of modelling efficiency (MEF). Overall, model predictions closely tracked the observed changes of consumption and growth. The results of the different validation techniques show a high goodness-of-fit between observed and simulated values. The model clearly demonstrates the importance of temperature in determining growth of flounder in the estuary. A sex-specific estimation of the energetic costs of spawning in adult flounder and a more accurate description of the thermal history of the fish may further reduce the error in the model predictions.

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