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Please use this identifier to cite or link to this item: http://acervodigital.unesp.br/handle/11449/69069
Title: 
Relative growth of the mangrove crab Ucides cordatus (Linnaeus, 1763) (Crustacea, Brachyura, Ocypodidae) at Iguape, São Paulo, Brazil
Author(s): 
Institution: 
Universidade Estadual Paulista (UNESP)
ISSN: 
1516-8913
Abstract: 
A total of 2,130 individuals of Ucides cordatus (1,255 males and 875 females) were captured in a mangrove forest at Iguape, São Paulo, Brazil. For each crab, the following body structures were measured: carapace (width = CW; length = CL; depth = CD), 5th abdominal somite (AW), major chelar propodus (length = PL; width = PW; depth = PD), and 1st and 2 nd gonopod pairs (length = GL1 and GL2). The Student t and Snedecor F tests were used to verify any changes in growth allometric rates during ontogeny. The relationships CLxCW, PLxCW (for both sexes), GL1xCW and GL2xCW (males) and AWxCW (females), showed a better fit by two equations for the juvenile and adult phases (p<0.01). The inflexion point size between regression lines, indicated by each morphometric relationship, allowed to propose four morphotypes for U. cordatus. Males were classified in juvenile (CW le; 32 mm), pre-puberty (32 ≤ CW ≤ 51 mm), sub-adult (51 ≤ CW ≤ 59 mm) and adult (CW > 59 mm). Females showed a similar size interval: (juvenile CW ≤ 39 mm, pre-puberty 39 ≤ CW ≤ 53 mm, sub-adult 53 ≤ CW ≤ 58 mm, adult CW > 58 mm).
Issue Date: 
1-Sep-2006
Citation: 
Brazilian Archives of Biology and Technology, v. 49, n. 5, p. 813-823, 2006.
Time Duration: 
813-823
Keywords: 
  • Brachyura
  • Ocypodidae
  • Relative growth
  • Ucides
  • Crustacea
  • Decapoda (Crustacea)
  • Scylla
  • Ucides cordatus
Source: 
http://dx.doi.org/10.1590/S1516-89132006000600016
URI: 
Access Rights: 
Acesso aberto
Type: 
outro
Source:
http://repositorio.unesp.br/handle/11449/69069
Appears in Collections:Artigos, TCCs, Teses e Dissertações da Unesp

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