| Summary: | The growth pattern for American plaice (Hippoglossoides platessoides) for two different populations in the Northwest Atlantic, the Grand Bank (3NO) population and the Flemish Cap (3M) population is modelled. Two non linear models are used from the Von Bertalanffy model in order to know the parameters involved in the equation. Results show that the youngest individuals of 3M growth faster than the 3NO individuals, although there is an intersection point between the two populations, around 38 cm for males and 51 cm in females, in which the growth of the 3NO American plaice is higher in both sexes. This population reaches higher lengths for both sexes. We discuss the possibility that the ontogenic changes in the feeding and the variations in the energy allocation for different reproductive needs could better explain the growth changes than the differences of temperature.
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