Use este identificador para citar ou linkar para este item: https://repositorio.inpa.gov.br/handle/1/19064
Título: Stable isotope analysis of energy sources for larvae of eight fish species from the Amazon floodplain
Autor: Leite, Rosseval Galdino
Araújo-Lima, Carlos Alberto Rego Monteiro
Victória, Reynaldo Luiz
Martinelli, Luiz Antônio
Palavras-chave: Aquatic Plant
Food Web
Ichthyofauna
Isotopic Analysis
Macrophyte
Stable Isotope
Poaceae
Data do documento: 2002
Revista: Ecology of Freshwater Fish
É parte de: Volume 11, Número 1, Pags. 56-63
Abstract: Aquatic macrophytes form the most productive habitat of the Amazon floodplain and account for more than 60% of the net primary production of the ecosystem. Aquatic grasses are the dominant macrophytes and the main feeding ground of Amazonian larval fish. The present study used stable isotopes of nitrogen and carbon to measure the contribution of aquatic grasses to the production of eight larval fish, and describes the structure of the trophic chain. The carnivore larvae were at the third trophic level, and the detritivores were at the second and third trophic levels. The contribution of aquatic grasses to larval fish production was variable. It could reach a mean value of 25% for three species, but its contribution probably did not exceed 12% in the other five species.
DOI: 10.1034/j.1600-0633.2002.110106.x
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