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Determinación de dimorfísmo y talla de madurez sexual mediante la ecuación alométrica en una población de Cancer plebejus Poeppig, 1836 (Decapoda, Brachyura) del sur de Chile = Determination of the dimorphism and size at sexual maturity for a population of Cancer plebejus Poeppig, 1836 (Decapoda, Brachyura) from the south of Chile
Weber, L.I. (1994). Determinación de dimorfísmo y talla de madurez sexual mediante la ecuación alométrica en una población de Cancer plebejus Poeppig, 1836 (Decapoda, Brachyura) del sur de Chile = Determination of the dimorphism and size at sexual maturity for a population of Cancer plebejus Poeppig, 1836 (Decapoda, Brachyura) from the south of Chile. Cah. Biol. Mar. 35(2): 177-192
In: Cahiers de Biologie Marine. Station Biologique de Roscoff: Paris. ISSN 0007-9723; e-ISSN 2262-3094, more
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    Marine/Coastal
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  • Weber, L.I.
Abstract
    Dimorphism and size at sexual maturity were determined by the allometric equation for a population of Cancer plebejus from the south of Chile. Eleven morphometric variables were measured and the cephalothorax width was used as a reference parameter. A prepubertal molt was identified only for females between 41 and 48 mm AnC by the variation in the relative growth of the maximum diameter of the gonopore. Sexual dimorphism starts to be evident from the prepubertal phase mainly by the dimensions of the cephalothorax, abdomen, and chelipeds, which increase after the pubertal molts.
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