 Application of a temperature-dependent von Bertalanffy growth model to bullhead (Cottus gobio)J. Kielbassa, M.L. Delignette-Muller, D. Pont and S. Charles Ecological Modelling, 2010, vol. 221, issue 20, 2475-2481 Abstract: The most studied and commonly applied model of fish growth is the von Bertalanffy model. However, this model does not take water temperature into account, which is one of the most important environmental factors affecting the life cycle of fish, as many physiological processes that determine growth, e.g. metabolic rate and oxygen supply, are directly influenced by temperature. In the present study we propose a version of the von Bertalanffy growth model that includes mean annual water temperatures by correlating the growth coefficient, k, explicitly and the asymptotic length, L∞, implicitly to water temperature. All relationships include parameters with an obvious biological relevance that makes them easier to identify. The model is used to fit growth data of bullhead (Cottus gobio) at different locations in the Bez River network (Drme, France). We show that temperature explains much of the growth variability at the different sampling sites of the network. Keywords: Growth model; Model comparison; Warming scenario; Cottus gobio; River network (search for similar items in EconPapers) Downloads: (external link) Related works: Export reference: BibTeX RIS (EndNote, ProCite, RefMan) HTML/Text Persistent link: https://EconPapers.repec.org/RePEc:eee:ecomod:v:221:y:2010:i:20:p:2475-2481 DOI: 10.1016/j.ecolmodel.2010.07.001 Access Statistics for this article Ecological Modelling is currently edited by Brian D. Fath More articles in Ecological Modelling from Elsevier |
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