Biblioteca Digital da UEM: Sistema Nou-Rau
Pgina Principal  Portugus   English  Español   Aumentar Texto  Texto Normal  Diminuir Texto
  Principal | Apresentao | Objetivos | Instrues Autores | Estatsticas | Outras Bibliotecas Digitais
  Sistema Integrado de Bibliotecas - SIB / UEM
Entrar | acessos | verso 1.1  
ndice
Pgina principal
Documentos
Novidades
Usurios

Aes
Consultar
Procurar
Exibir estatsticas

Procurar por:
Procura avanada

Dvidas e sugestes


Consultar: Artigo

Incio > Produo Cientfica do Nuplia/PEA > Artigo

Ttulo: Energy budgets of fish populations in two tributaries of the Paran River, Paran, Brazil
Autor(es): PENCZAK, T.; AGOSTINHO, A.A.; HAHN, N.S.; FUGI, R.; GOMES, L.C.
Palavras-chave [PT]:

Peixe. Populaes. Paran, Rio. Brasil. Afluentes. Eficincia ecolgica. Energia.
Palavras-chave [EN]:
Energy budget. Ecological efficiency. Fish populations. Food consumption. Paran River catchment. Brazil. Small tributaries.
Resumo:
Abstract: The energy budget of all fish populations was estimated in two small tributaries of the Paran River (Paran, Brazil). Total energy consumed by fish in the Caracu and the Agua do Rancho Rivers was 4.1 and 1.8 MJ m-2 y-1, and food items consumed were 2284 and 994.5 g wet weight m-2 y-1, respectively. The gross (K1) and net (K2) ecological efficiency coefficients were very low, but 43.2 and 59.6% of the total fish diet in these two streams, respectively, consisted of plant detritus. In both fish communities, omnivorous (opportunist) species dominated and specialists were rare. Although the Caracu River was more affected by human activity than was the Agua do Rancho, ecological efficiency coefficients calculated for the dominant fish populations were not significantly different.
Descrio:
PENCZAK, Tadeusz; AGOSTINHO, Angelo Antonio; HAHN, Norma Segatti; FUGI, Rosemara; GOMES, Luiz Carlos. Energy budgets of fish populations in two tributaries of the Paran River, Paran, Brazil. Journal of Tropical Ecology, New York, v.15, no.2, p.159-177, 1999.
Cdigo: 196

Responsavel: admin
Categoria: Aplicao
Formato: Documento PDF
Arquivo: 082-JTE-Penczak-etal.pdf
Tamanho: 127 Kb (129680 bytes)
Criado: 23-04-2008 18:27
Atualizado: 25-06-2008 11:48
Visitas: 1738
Downloads: 80

[Visualizar]  [Download]

Todo material disponvel neste sistema de propriedade e responsabilidade de seus autores.