Crescimento, recrutamento e mortalidade de Astyanax altiparanae Garutti & Britski, 2000 e A. schubarti, Britski, 1964 (Pisces, Characidae) na planície de inundação do alto rio Paraná, Brasil- DOI: 10.4025/actascibiolsci.v26i4.1524

Maria de Los Angeles Perez Lizama; Angela Maria Ambrósio

doi:10.4025/actascibiolsci.v26i4.1524

Growth, recruitment, and mortality parameters for Astyanax altiparanae Garutti and Britski, 2000 and A. schubarti, Britski, 1964 (Pisces, Characidae) in the Upper Paraná River floodplain - DOI: 10.4025/actascibiolsci.v26i4.1524

Maria de Los Angeles Perez Lizama UEM
Angela Maria Ambrósio UEM

DOI: https://doi.org/10.4025/actascibiolsci.v26i4.1524

Abstract

Data for the characid Astyanax altiparanae and A. schubarti, collected from March 1993 to February 1994, were used for studies of growth, recruitment, and mortality. The results for the A. altiparanae indicated asymptotic growth (L∞) of 18.0cm (standard length) and growth rate (k) of 0.26; the total mortality (Z) estimated from the different methods was 2.23 and two recruitment periods were observed during the year, one in March and the other in November, coinciding with the reproductive season of the species. For A. schubarti a k value of 0.25 and an asymptotic length value of 12.0cm were obtained; the natural mortality rate was 0.84; for this species two recruitment periods were also observed, the first coinciding with the highest spawning level, and the second soon afterwards

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Author Biography

Maria de Los Angeles Perez Lizama, UEM

Maria de Los Angeles Perez Lizama possui graduação em Biologia pela Universidade de Mogi das Cruzes (1988), mestrado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (1994) e doutorado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (2003). Atualmente realiza atividades de pesquisa na Universidade Estadual de Maringá. Tem experiência na área de Parasitologia, com ênfase em Helmintologia Animal, atuando principalmente nos seguintes temas: parasitologia, biologia, bionomia, peixes, planície de inundação do alto rio paraná, Prochilodus lineatus e Brasil. Currículo Lattes

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Published

2008-03-31

How to Cite

Lizama, M. de L. A. P., & Ambrósio, A. M. (2008). Growth, recruitment, and mortality parameters for Astyanax altiparanae Garutti and Britski, 2000 and A. schubarti, Britski, 1964 (Pisces, Characidae) in the Upper Paraná River floodplain - DOI: 10.4025/actascibiolsci.v26i4.1524. Acta Scientiarum. Biological Sciences, 26(4), 437-442. https://doi.org/10.4025/actascibiolsci.v26i4.1524

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Issue

Vol 26 No 4 (2004)

Section

Biology Sciences

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