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Hydrobiologia

, Volume 411, Issue 0, pp 65–70 | Cite as

Reproduction of the annual fish Cynopoecilus melanotaenia (Regan, 1912) in a temporary water body in Rio Grande do Sul, Brazil (Cyprinodontiformes, Rivulidae)

  • Alexandre Arenzon
  • Alberto Carvalho Peret
  • Maria Beatriz Camino Bohrer
Article

Abstract

The reproductive cycle of the annual fish Cynopoecilus melanotaenia was studied in its natural environment, in order to obtain relevant information about its biology. This data would be valuable for culturing optimization in the laboratory. A total of 797 specimens of C. melanotaenia were collected on a monthly basis between April 1994 and March 1995 in a temporary water body, located in Rio Grande do Sul State, Brazil. The frequency distribution of oocyte diameters indicates a continuous spawning life history style over a long period of time. The estimated Lpm to females was 18.55 mm, when they are 54 days old.

annual fish reproduction Cynopoecilus melanotaenia Brazil 

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Copyright information

© Kluwer Academic Publishers 1999

Authors and Affiliations

  • Alexandre Arenzon
    • 1
  • Alberto Carvalho Peret
    • 1
  • Maria Beatriz Camino Bohrer
    • 1
  1. 1.Ecology CenterFederal University of Rio Grande do Sul (UFRGS)Porto AlegreBrazil E-mail

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