Relative growth and sexual maturity of the stone crab Menippe nodifrons Stimpson, 1859 (Brachyura, Xanthoidea) in southeastern Brazil

Brazilian Archives of Biology and Technology

Giovana Bertini²  Adriane Araújo Braga¹  Adilson Fransozo¹  Michéle De Oliveira Dias Alves Corrêa¹  Fulvio Aurélio De Morais Freire¹ 

[1] ,Universidade Estadual PaulistaRegistro SP ,Brasil

关键词: Growth;    Sexual Maturity;    Menippe;    Xanthoidea;   

DOI  :  10.1590/S1516-89132007000200011

来源: SciELO

【 摘 要 】

The relative growth and size at onset of morphological sexual maturity of the stone crab Menippe nodifrons were investigated. A total of 399 crabs was captured on Praia Grande and Tenório beaches at Ubatuba. Carapace width (CW) and length, cheliped propodus length and height, abdomen width in females, and gonopod length in males were recorded. In females, the abdominal width showed negative allometry for juveniles and positive allometry for adults; the puberty molt occurred at 31.6 mm CW. In males, the size at onset of morphological sexual maturity was estimated as 29.7 mm CW; the gonopod growth showed positive allometry for juveniles, and an isometric relationship for adults. The gonopod length and the abdominal width were the most appropriate morphometric variables to estimate size at onset of sexual maturity in this stone crab.

【 授权许可】

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