Data/hora: 12/06/2024 17:17:50

Provedor de dados: 	52	
País: 	Brazil	
Título: 	Selection of an experimental fish ladder located at the dam of the Itaipu Binacional, Paraná River, Brazil	
Autores: 	Fernandez,Domingo Rodriguez; Agostinho,Angelo Antônio; Bini,Luis Mauricio.	
Data: 	2004-08-01	
Ano: 	2004	
Palavras-chave: 	Fish ladder; Fish migration; Selectivity; Fish transposition; Reservoir.	
Resumo: 	The specific selection of a weir and orifice type experimental fish ladder in the dam of the Itaipu Reservoir (Paraná River) was evaluated by samplings in the river downstream and at two points along the ladder (at heights of 10 m and 27 m) during 28 months. Among the 65 species recorded in the river (immediate downstream of the dam), 27 were captured on the ladder. The species that showed highest density on the ladder, the majority migratory, were moderately, or only slightly, abundant downstream. Among the most abundant species downstream, only one, non-migratory, was recorded in the ladder. The structure presented a negative selection in relation to large migratory pimelodids that might be overcome by enlarging the scale of its design. The sampling demonstrated a moderate selection of species along the ladder and its hydraulic model proved satisfactory regarding the attraction and efficient ascent of the fishes.	
Tipo: 	Info:eu-repo/semantics/article	
Idioma: 	Inglês	
Identificador: 	http://www.scielo.br/scielo.php?script=sci_arttext&pid=S1516-89132004000400012	
Editor: 	Instituto de Tecnologia do Paraná - Tecpar	
Relação: 	10.1590/S1516-89132004000400012	
Formato: 	text/html	
Fonte: 	Brazilian Archives of Biology and Technology  v.47 n.4 2004	
Fonte: 	info:eu-repo/semantics/openAccess