Reproductive period and size at the onset of sexual maturity of mottled purse crab, Persephona mediterranea (Herbst, 1794) (Brachyura, Leucosioidea) on the southeastern Brazilian coast

Autor(es)

Bertini, Giovana ^[1] ; Teixeira, Gustavo Monteiro ^[2] ; Fransozo, Vivian ^[2] ; Fransozo, Adilson ^[2]

Afiliação do(s) autor(es)

^[1] Univ Estadual Paulista, BR-11900000 Sao Paulo - Brazil

^[2] Univ Estadual Paulista, Inst Biociencias, Dept Zool, BR-18618000 Sao Paulo - Brazil

• Tipo de documento: Artigo Científico
• Fonte: INVERTEBRATE REPRODUCTION & DEVELOPMENT; v. 54, n. 1, p. 7-17, MAY 2010.
• Citações Web of Science: 12

Resumo

The reproductive biology of Persephona mediterranea was investigated in relation to the following aspects: population structure, size at the onset of sexual maturity, sexual size dimorphism, and reproductive period. A total of 1,283 specimens were obtained (565 males, 120 non-ovigerous females and 598 ovigerous females). CW(50) values were 22.8 and 22.3 mm CW for males and females, respectively, and the mean size of males was significantly larger than that of females. Persephona mediterranea shows continuous reproduction. However, there is a reduction M the proportion of ovigerous females and males with gonads in advanced developmental stage during the autumn and beginning of the winter. There was no significant correlation between the reproductive activity and variation in abiotic factors. Of the total captured specimens, 98.99% were sexually mature, which may indicate a differential spatial distribution among the distinct age groups, and sampling sites are probably areas occupied by adult individuals or this population. (AU)

• Processo FAPESP: 97/12108-6 - Biologia e distribuição espacial e temporal das espécies de camarões Dendrobranchiata (Crustacea: Decapoda) na região de Ubatuba (SP)
• Beneficiário: Rogério Caetano da Costa
• Modalidade de apoio: Bolsas no Brasil - Doutorado
• Processo FAPESP: 97/12106-3 - Biologia e distribuição espacial e temporal dos caranguejos (Crustacea: Decapoda: Brachyura) do substrato não-consolidado, na região de Ubatuba (SP)
• Beneficiário: Giovana Bertini
• Modalidade de apoio: Bolsas no Brasil - Doutorado