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Súarez,Yzel Rondon; Valério,Sabrina Bigatão; Tondado,Karina Keyla; Florentino,Alexandro Cezar; Felipe,Thiago Rota Alves; Ximenes,Lidiani Queli Lubas; Lourenço,Luzia da Silva. |
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... |
Tipo: Info:eu-repo/semantics/article |
Palavras-chave: Community ecology; Fish diversity; Streams; Paraguay Basin; Paraná Basin. |
Ano: 2007 |
URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132007000700014 |
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