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Aspectos da reprodução do peixe-porco, Balistes capriscus (Gmelin) (Actinopterygii, Tetraodontiformes, Balistidae) coletado na costa sul do Estado de São Paulo, Brasil

2000; Sociedade Brasileira de Zoologia; Volume: 17; Issue: 3 Linguagem: Inglês

10.1590/s0101-81752000000300014

ISSN

1806-969X

Autores

Roberto Ávila Bernardes, June Ferraz Dias,

Tópico(s)

Aquaculture Nutrition and Growth

Resumo

Reproductive aspects of lhe grey triggerfish, Balistes caprisclIs (Gmelin) (Actinopterygii, Tetraodontiformes, Balistidae) from South São Paulo state coast, Brazil.The monthly analysis of maturity stage ti'equency suggested that spawning ofthe grey triggerfish Balisles capriscus (Gmelin, 1788) is annual, total and occurs from Novemberto FebrualY in the south ofSào Paulo State, Brazil.Size at firsl .Illaturity is 169 mm for temales and 200 mm for males.Condition factor estimated cOllsidering and disconsidering gonad weight (K and K') showed maximum values relatcd to periods ofhigher frequency offemales at advanced maturity stage.óK was higher in December, JanualY and FebrualY, and was relaled to the maximulll frequency of mature females.As K estimates lhe gonad condition it could be used as a Illaturity and breeding season index for this species.The gonadosomatic relation behaved lhe sallle as K values.

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