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Longitudinal patterns of fish assemblages in mountain streams from tropical forest biome Biota Neotropica
Silva,João Fernando Marques da; Raio,Cibele Bender; Bernardino,Débora Fernandes Silva; Bennemann,Sirlei Terezinha.
The aim of this study was to verify structure patterns in fish assemblages in mountain streams of the Rio Tibagi basin through the characterization of spatial and temporal variations in the composition of fish species. Samples were collected in three segments of the Varanal, João Pinheiro and Rio Preto streams. We collected 1154 specimens belonging to 21 species. The most abundant orders were Characiformes (59.01 ± 2.84%) and Siluriformes (39.34 ± 2.82%). Phalloceros harpagos was the most abundant species with 433 individuals, followed by Trichomycterus aff.davisi, with 292 individuals. No temporal variations (between seasons) were detected, but the cluster analysis suggests a separation of species composition between the segments closer to the headwaters...
Tipo: Info:eu-repo/semantics/article Palavras-chave: Ichthyofauna; Freshwater fishes; Neotropical fishes; Low order streams; Tibagi river basin.
Ano: 2013 URL: http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1676-06032013000300064
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