1987•Journal of Applied IchthyologyRequires access

Fitting of von Bertalanffy growth function (VBGF) with two growth checks per year

J. Moreau, Isabelle Moreau

Abstract

Two growth stops per year occur in some equatorial fishes. The paper provides a method for fitting a generalized von Bertalanffy growth function (VBGF) allowing a mathematical description of such growth stops occurring twice a year; this method is illustrated with a growth curve for Oreochromis niloticus (Cichlidae) from Madagascar.

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Key concepts: Biology, Growth function, Growth curve (statistics), Growth model, Function (biology), Zoology, Fishery, Statistics