Variação temporal e espacial de ovos e de larvas das espécies de interesse para a pesca na sub-bacia do rio Miranda, Pantanal, Estado do Mato Grosso do Sul, Brasil - DOI: 10.4025/actascibiolsci.v27i3.1314

Flavio Lima Nascimento; Keshyiu Nakatani

doi:10.4025/actascibiolsci.v27i3.1314

Temporal and spatial variation of fish eggs and larvae of the main exploited species in the sub-basin of Miranda River, Pantanal wetland, State of Mato Grosso do Sul, Brazil - DOI: 10.4025/actascibiolsci.v27i3.1314

Flavio Lima Nascimento UEM
Keshyiu Nakatani UEM

DOI: https://doi.org/10.4025/actascibiolsci.v27i3.1314

Abstract

The aim of this study was to analyze temporal variation of fish eggs and larvae of the main exploited species in Miranda river, Pantanal wetland (Piaractus mesopotamicus, Prochilodus lineatus, Salminus maxillosus, Leporinus macrocephalus, and Pseudoplatystoma spp., which were collected from October to March, biweekly, from 1996 to 1999. The river was divided into superior, medium and inferior sections, of 15 collection sites. Conical-cylindrical plankton net with a fluxometer and samples fixed in formol 4% were utilized. Morphological and meristic characteristics, notochord flexion degree and caudal fin elements were utilized for identification. A total of 5,979 larvae and 1,075 eggs were collected in the first period; 108,912 larvae and 1,836 eggs in the second; 13,465 larvae and 1,855 eggs in the third. Results showed that ANOVA, between the years and the river stretches, was significant (F = 6.5, p >0.05) in the medium section, which indicates that the reproduction occurs from medium to superior section from November to January

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Author Biography

Flavio Lima Nascimento, UEM

possui graduação em Ciências Biológicas pela Universidade Federal de Juiz de Fora (1978), especialização "Latum Senso" em Comportamento Animal pela Universidade Federal de Juiz de Fora (1986)mestrado em Ciências Biológicas (Biologia Aquática e Pesca Interior) pelo Instituto Nacional de Pesquisas da Amazônia (1992) e doutorado em Ecologia de Ambientes Aquáticos Continentais pela Universidade Estadual de Maringá (2004). Atualmente é pesquisador "A" - Embrapa Pantanal. Tem experiência na área de Zoologia, com ênfase em Conservação das Espécies Animais, atuando principalmente nos seguintes temas: peixes, pantanal, ecologia, cichla, reprodução, crescimento e piscicultura Currículo Lattes

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Published

2008-03-26

How to Cite

Nascimento, F. L., & Nakatani, K. (2008). Temporal and spatial variation of fish eggs and larvae of the main exploited species in the sub-basin of Miranda River, Pantanal wetland, State of Mato Grosso do Sul, Brazil - DOI: 10.4025/actascibiolsci.v27i3.1314. Acta Scientiarum. Biological Sciences, 27(3), 251-258. https://doi.org/10.4025/actascibiolsci.v27i3.1314

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Issue

Vol 27 No 3 (2005)

Section

Ecology and Limnology

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