Populational biology of tilapia, Oreochromis niloticus, in Guarapiranga Reservoir, São Paulo í  III. Alimentary activity

Authors

  • Geraldo BARBIERI Pesquisador Cientí­­fico - Centro de Estudos de Bacias Hidrográficas-Instituto de Pesca -SAA
  • Alcides Ribeiro TEIXEIRA FILHO Pesquisador Cientí­­fico - Centro de Pesquisa em Aquicultura -Instituto de Pesca -SAA
  • Elmar Cardoso CAMPOS Pesquisador Cientí­­fico - Centro de Estudos de Bacias Hidrográficas-Instituto de Pesca-SAA
  • Harry VERMULM Jr. Pesquisador Cientí­­fico -  Centro de Estudos de Bacias Hidrográficas-Instituto de Pesca-SAA
  • Maria Teresa Duarte GIAMAS Pesquisador Cientí­­fico - Centro de Estudos de Bacias Hidrográficas-Instituto de Pesca -SAA

Keywords:

alimentary activity, condition factor, Oreochromis niloticus, Reservoir

Abstract

This study was performed in order to obtain information regarding aspects of food dynamics of Oreochromis niloticus Linnaeus, 1757 in Guarapiranga Reservoir (São Paulo, Brazil). The specimens were collected monthly between August 1996 and July 1997. The analysis was established based on variations of the repletion index, relative frequency of repletion stages and condition factor. The specimens showed higher feeding activity before and after the reproductive period.

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Published

2018-10-27

Issue

Vol. 26 No. 1 (2000): BOLETIM DO INSTITUTO DE PESCA

Section

Scientific Article

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