Variation in the carbon isotope composition of Semaprochilodus insignis, a detritivorous fish associated with oligotrophic and eutrophic Amazonian rivers |
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| Authors: | E. Benedito-Cecilio,&Dagger C. A. R. M. Araujo-Lima,&dagger |
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| Affiliation: | Universidade Estadual de Maringá, Nupelia, PEA, Av. Colombo, 5790, Maringá, PR, 87020-900 Brazil;Instituto National de Pesquisas da Amazônia, INPA, C.P. 478, Manaus, AM, 69011-970 Brazil |
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| Abstract: | The Amazonian freshwater fish, Semaprochilodus insignis , varies in carbon isotopic composition during residence in different habitats within its home range. The results indicate that carbon produced in black-water systems contributes to fish stocks harvested from white-water systems, and S. insignis populations in the Central Amazonia are more integrated than previously thought. |
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| Keywords: | detritivory foodchain δ13C algae white-water black-water |
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