Autor(es): Fumis, Patricia B. ; Fransozo, Adilson ; Bertini, Giovana ; Braga, Adriane A.
Data: 2014
Identificador Persistente: http://hdl.handle.net/11449/19250
Origem: Oasisbr
Assunto(s): relative growth; Xanthoidea; heterochely; Hexapanopeus schmitti; relative growth; relative growth; Xanthoidea; Xanthoidea; heterochely; heterochely; Hexapanopeus schmitti; Hexapanopeus schmitti
Submitted by Guilherme Lemeszenski (guilherme@nead.unesp.br) on 2014-02-26T17:00:50Z No. of bitstreams: 0
Made available in DSpace on 2014-02-26T17:00:50Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-06-01
Submitted by Vitor Silverio Rodrigues (vitorsrodrigues@reitoria.unesp.br) on 2014-05-20T13:53:52Z No. of bitstreams: 0
Made available in DSpace on 2014-05-20T13:53:52Z (GMT). No. of bitstreams: 0 Previous issue date: 2007-06-01
A morphometric study of the xanthoid crab Hexapanopeus schmitti was carried out, using the allometric method. Samples were taken monthly for two years (1998-1999) in the Ubatuba region, northern coast of São Paulo, Brazil. Sex and size were assessed for each specimen, and all crabs were measured to obtain their carapace width (CW) and length (CL), abdomen width (AW) of females, major cheliped propodus length and height (PL and PH), and gonopod length (GL) of males. A total of 301 crabs were analyzed, 209 males and 92 females. The CWs of the crabs ranged from 2.5 to 9.8 mm for males and from 2.8 to 9.4 mm for females. The relative growth equation (y=ax(b)) based on the relationship between GL and CW suggested that males reach their morphological sexual maturity near 6.1 mm CW. In females, the estimated size at 50 % maturity was 4.8 mm CW, based on the relationship of AW vs. CW. Males reach larger sizes than females, which probably favors their ability to guard the females during courtship. In approximately 83 % of the crabs (n= 371), disregarding sex, the right cheliped was larger.
Univ Estadual Paulista, Inst Biocencias, Dept Zool, BR-18618000 Botucatu, SP, Brazil
Univ Estadual Paulista, Campus Expt Registro, BR-11900000 Registro, SP, Brazil
Univ Estadual Paulista, Inst Biocencias, Dept Zool, BR-18618000 Botucatu, SP, Brazil
Univ Estadual Paulista, Campus Expt Registro, BR-11900000 Registro, SP, Brazil
