Use este identificador para citar ou linkar para este item: http://repositorio.bc.ufg.br/handle/ri/14243
Tipo do documento: Artigo
Título: Stonefly (Plecoptera) fauna of streams in a mountainous area of central Brazil: abiotic factors and nymph density
Autor: Bispo, Pitágoras da Conceição
Froehlich, Cláudio Gilberto
Oliveira, Leandro Gonçalves
Resumo: The stonefly (Plecoptera) nymphs of streams of the Almas River basin, Pirenópolis, Goiás State, Central Brazil, and some abiotic factors that might affecttheir temporal distribution were studied. Nymphs were sampled monthly (June 1993to July 1994) in five stations with a Surber sampler, and each sample consisted of 20 unils totalling 2 m2 ln each station, stream velocity, discharge, temperature, electrical conductivity and pH were measured in order to assess their influence on the density of nymphs. Nymphs were identified to genus leveI. ln general, lhe annual variation in density of nymphs, in four slations, showed lhal lhe seasonal variation was not clearly influenced by the annual rain cycle. ln the case ofthe one oflhe slalions, where numbers of stonefly nymphs were low and the anlhropic action high, there was a density peak in lhe rainy season. This peak was probably related to dilution of lhe organic pollution in lhe rainy season, improving lhe environmental condilions for lhe Plecoptera.
Palavras-chave: Plecoplera
Nymphs
Central Brazil
Abiolic factors
Seasonality
País: Brasil
Unidade acadêmica: Instituto de Ciências Biológicas - ICB (RG)
Citação: BISPO, Pitágoras da Conceição; FROEHLICH, Cláudio Gilberto ; OLIVEIRA, Leandro Gonçalves. Stonelfy (Plecoptera) fauna of streams in a mountainous area of central Brazil: abiotic factors and nymph density. Revista Brasileira de Zoologia, Curitiba, v. 19, suppl. 1, p. 325-334, July. 2002.
Tipo de acesso: Acesso Aberto
URI: http://repositorio.bc.ufg.br/tede/handle/ri/14243
Data de publicação: Jul-2002
Aparece nas coleções:ICB - Artigos publicados em periódicos

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