Artículos de revistas
Notes on the reproductive biology of the Brazilian electric ray Narcine brasiliensis (Elasmobranchii: Narcinidae)
Fecha
2015-09-16Registro en:
Journal Of Fish Biology, p. 1-7, 2015.
1095-8649
10.1111/jfb.12778
26377171
Autor
Universidade Estadual Paulista (Unesp)
Zoological Collection, Santa Cecilia University (UNISANTA), Rua Oswaldo Cruz, 266, Boqueirão, CEP 11045-907, Santos, SP, Brazil.
Institución
Resumen
This study provides information on the reproductive biology of Narcine brasiliensis based on 105 individuals (72 females and 33 males) sampled in São Paulo State, Brazil. The total length at maturity for females was 318·9 mm and for males was 279·8 mm; pregnant females were observed only during summer and autumn. The peak of the gonado-somatic index for females and condition factor for males in the spring suggest a preparation for pregnancy and a mating period during this season. The capture of immature individuals indicates a need for management of the species in this region.