Use este identificador para citar ou linkar para este item: http://repositorio.inpa.gov.br/handle/123/5953
Título: Autotrophic Carbon Sources For Fish Of The Central Amazon
Autor(es): ARAUJO-LIMA
L.A. MARTINELLI
R.L. VICTORIA
J.A. BONASSI
Bruce Rider Forsberg
Assunto: Amazônia
peixe
isotopos estaveis
ISSN: 0012-9658
Revista: Ecology (Durham)
Volume: 74
Resumo: Stable isotope data for plants and 35 fish species were used to identify autotrophic carbon sources for the central Amazon fish community. δ13C values for plants ranged from -39.4 to -11.9‰ with averages of -33.3, -28.8, -27.6, -26.2, and -12.8‰ for phytoplankton, flooded forest trees, C3 aquatic macrophytes, periphyton, and C4 macrophytes, respectively. The average for all C3 plants (phytoplankton, trees, C3 macrophytes, and periphyton) was -29.1‰, while the average for C4 plants (mainly C4 macrophytes) was -12.8‰. Mean δ13C calues for adult fish ranged from -37.0 to -19.8‰ with an average of -28.8‰. C4 macrophytes, which contributed over half of the primary production on the floodplain, accounted on average for only 2.5-17.6% of the carbon in fish. the C3 plants, as a group, were the primary carbon source for 34 fish species, and accounted for 82.4-97.5% of the carbon in all species. Phytoplankton, a minor C3 producer, accounted for a minimum of 36.6% of fish carbon on average, and was the principal carbon source for the commercially important characiform detritivores. -from Authors
URI: http://repositorio.inpa.gov.br/handle/123/5953
ISSN: 0012-9658
DOI: http://dx.doi.10.2307/1940793
Local de publicação: Estados Unidos
Aparece nas coleções:Coordenação de Dinâmica Ambiental (CDAM)

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