Growth and mortality of Oligosarcus hepsetus (Cuvier, 1829) (Characiforms, Characidae) in Serra do Mar State Park, Santa Virgínia Unit, São Paulo, Brazil

Authors

  • Alberto Luciano Carmassi Universidade Estadual Paulista, Instituto de Biociências, Departamento de Zoologia
  • Giulianna Rodrigues Rondineli Universidade Estadual Paulista, Instituto de Biociências, Departamento de Zoologia
  • Leandro Muller Gomiero Universidade Estadual Paulista, Instituto de Biociências, Departamento de Zoologia
  • Francisco Manoel de Souza Braga Universidade Estadual Paulista, Instituto de Biociências, Departamento de Zoologia

Keywords:

dogfish, neotropical freshwater species, population parameters, length frequencies, Atlantic Forest

Abstract

Growth and mortality parameters were estimated for Oligosarcus hepsetus caught in the Serra do Mar State Park, Núcleo Santa Virginia. Monthly length frequencies distributions were analyzed with the ELEFAN method within the FISAT program, using the seasonal version of the Von Bertalanffy's growth curve. The instantaneous rate of natural mortality was calculated using the empirical formula proposed by Pauly. The estimated parameters were K = 0.72, L∞ = 23.3 cm, C = 0.3, Wp = 0.7 and M = 1.25. These parameters corroborate the characteristics of a predator species with long reproductive period, spawning parceled out without parental care, and that lives in a typical river of Atlantic forest.
Issue Cover Vol.: 11 Num: 2

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Published

2011-06-01

How to Cite

Carmassi, A. L., Rondineli, G. R., Gomiero, L. M., & Braga, F. M. de S. (2011). Growth and mortality of Oligosarcus hepsetus (Cuvier, 1829) (Characiforms, Characidae) in Serra do Mar State Park, Santa Virgínia Unit, São Paulo, Brazil. Biota Neotropica, 11(2). Retrieved from //www.biotaneotropica.org.br/BN/article/view/757

Issue

Vol. 11 No. 2 (2011): v11n2

Section

Articles

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