| Registro completo |
| Provedor de dados: |
BABT
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| País: |
Brazil
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| Título: |
Fish species diversity in headwaters streams of Paraguay and Paraná Basins
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| Autores: |
Súarez,Yzel Rondon
Valério,Sabrina Bigatão
Tondado,Karina Keyla
Florentino,Alexandro Cezar
Felipe,Thiago Rota Alves
Ximenes,Lidiani Queli Lubas
Lourenço,Luzia da Silva
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| Data: |
2007-11-01
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| Ano: |
2007
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| Palavras-chave: |
Community ecology
Fish diversity
Streams
Paraguay Basin
Paraná Basin
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| Resumo: |
The influence of spatial, temporal and environmental factors on fish species diversity in headwater streams in Paraguay and Paraná basins, Brazil was examined. A total of 4,605 individuals were sampled, distributed in 60 species. The sampled streams in Paraná basin presented a larger total species richness (42) than Paraguay streams (40). However the estimated richness was larger in Paraguay basin (53) than Paraná streams (50). The streams of Paraná basin had a greater mean species richness and evenness, while more individuals per sample were found in the Paraguay basin. Difference between the sub-basins were found in the Paraguay basin, while for the basin of Paraná, richness and evenness vary significantly between the sub-basins, but the number of individuals varied seasonally. The most important environmental factors to species diversity and abundance were altitude, water temperature, stream width and stream depth for both the basins.
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| Tipo: |
Info:eu-repo/semantics/article
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| Idioma: |
Inglês
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| Identificador: |
http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700014
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| Editor: |
Instituto de Tecnologia do Paraná - Tecpar
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| Relação: |
10.1590/S1516-89132007000700014
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| Formato: |
text/html
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| Fonte: |
Brazilian Archives of Biology and Technology v.50 n.6 2007
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| Direitos: |
info:eu-repo/semantics/openAccess
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