Abstract

Individual growth subject to fishing use is modeled through von Bertalanffy equation, this model takes implicit that length increases are inversely proportional to individual length; starting from this assumption derive methods to estimate parameters of the von Bertalanffy equation, when estimates are made with tagged-recapture data. Crustacean growth is carried out in abrupt increase that require matter and energy accumulation and a exoskeleton size change, this characteristic it allows to suppose that while individuals are bigger they will have major capacity to accumulate matter and energy and therefore this will grow more until a limit in which stop to grow. Goal of this work was to explore relationship between length increment and lobster sizes. Data used, come from tagged-recapture experiments in juvenil lobsters, carried out in Biosphere Reserve of Banco Chinchorro, Quintana Roo located in Mexican Caribbean, of June 2005 to August 2007. Were used regression analysis technical. Results show a lineal relationship among the size (cm) and length increment for time unit (cm/year) in a size interval of 3 cm to 7.5 cm. Implication on estimates of growth parameters of von Bertalanfy model applied to iP. argus/i when tagged-recapture data are used, are discusses.

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