期刊
BRAZILIAN ARCHIVES OF BIOLOGY AND TECHNOLOGY
卷 49, 期 2, 页码 239-248出版社
INST TECNOLOGIA PARANA
DOI: 10.1590/S1516-89132006000300009
关键词
maturity; Uca rapax; Ocypodidae; mangroves
类别
The gonad development of Uca rap was studied to achieve the size at onset of its sexual maturity. Crabs were sampled from April/2001 to March/2002 in the Itamambuca and Ubatumirim mangroves in Ubatuba, Sao Paulo, Brazil. The specimens were grouped in 10 size classes. Juveniles and adult crabs frequencies were assessed for each class. The size of carapace width in which 50% of males and females were considered mature was 14.8 and 12.1 mm (Itamambuca) and 13.6 and 11.4 mm (Ubatumirim), respectively for males and females. Males matured at higher sizes than females, probably due to a major investment in their somatic growth, while females spend their energy in the reproductive process, saving energy for eggs' production.
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