Effect of the sexual proportion on reproductive performance of pink shrimp Farfantepenaeus brasiliensis (Decapoda: Penaeoidea)

Authors

  • Helaine dos Reis FLOR Universidade Federal Rural do Rio de Janeiro / CAPES http://orcid.org/0000-0003-1824-6212 (unauthenticated)
  • Lidia Miyako Yoshii OSHIRO Federal Rural University of Rio de Janeiro image/svg+xml
  • Tiago Viana da COSTA Universidade Federal do Amazonas, Instituto de Ciências Sociais, Educação e Zootecnia / CNPq
  • Michelle Midori Sena FUGIMURA Federal Rural University of Rio de Janeiro image/svg+xml
  • Felipe Nolasco Gomes RODRIGES Federal Rural University of Rio de Janeiro image/svg+xml
  • Luciana Antunes de MATTOS Federal Rural University of Rio de Janeiro image/svg+xml

DOI:

https://doi.org/10.20950/1678-2305.2016v42n2p343

Keywords:

fecundity, fertility, penaeid, reproduction

Abstract

Farfantepenaeus brasiliensis is a native species in Brazilian coast. It is one of the most exploited marine resources. In order to contribute to the development of techniques to promote the rearing their cultivation, the objective of this study was to evaluate the pink shrimp reproductive performance in captivity under different sex ratios. Breeders were captured in Sepetiba Bay/Brazil and maintained during 107 days in maturation tanks. One hundred and eight animals were randomly distributed into tanks 18 in the proportions 1:1 and 1:2 (M:F). Females have undergone unilateral ablation and identified by markings on their uropods. The evaluation of the reproductive performance was estimated by the number of spawning, fecundity and hatching rate. It was determined optimal size (32,00 mm CL) and minimum weight (24,00 g LW) for reproduction in females. The better fertility and nauplii hatching indicate that the sex ratio 1:2 is most suitable for this species.



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Published

2016-06-30

Issue

Vol. 42 No. 2 (2016): BOLETIM DO INSTITUTO DE PESCA

Section

Scientific Article

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