Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/3668
Título: Factors influencing the structure and spatial distribution of fishes in the headwater streams of the Jaú River in the Brazilian Amazon
Autor(es): KEMENES, A
Bruce Rider Forsberg
ISSN: 1519-6984
Revista: Brazilian Journal of Biology
Volume: 74
Resumo: The aim of this study was to investigate the influence of spatial variation in river channels and habitats on the distribution of fish communities in the headwater streams of the Jau River System, a blackwater tributary of the Negro River. Collections and measurements were made in 34 headwater streams during the period of November-December, 1998. Fish were captured with fish traps and hand nets along standard reaches of two meanders. Data on benthic habitat structure, stream depth and width were collected along lateral transects in each sample reach. A total of 66 fish species from 24 families were collected and classified into seven trophic guilds: allocthonous insectivore, autochthonous insectivore, general insectivore, piscivore, detritivorous planktivore, detritivorous insectivore and insectivorous piscivore. Variations in the distribution and diversity of bottom substrates were important factors influencing fish community structures in these systems. Also, variation in stream size explained the observed variability in fish communities.
URI: http://repositorio.inpa.gov.br/handle/123/3668
ISSN: 1519-6984
DOI: https://dx.doi.org/10.1590/1519-6984.06812
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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