Fw: Re: [TAXACOM] World's longest wood fish ladder?

Walter Boeger wboeger at UFPR.BR
Fri Mar 31 16:50:22 CST 2006

Dear John and all taxacomers

I don´t know if there is any other longer fish ladder, but I was impressed
with the one built in the State of Tocantins, Brazil. If I recall correctly,
it is about 800 meters long, about 2400 feet. However, another giant is the
so-called “Canal da Piracema” built at the Itaipu dam in the State of Paraná
 It is 8 km long, but includes ladder, natural channels and artificial
channels. It is 8 to 10 meters wide and up to 1,5 meters deep. You may want
to check http://www.itaipu.gov.br/meioa/aaqua_canal.htm. The text is in
Portuguese, but the figures are impressive!



Walter A. Boeger, PhD
Laboratory of Molecular Ecology and Evolutionary Parasitology
Grupo Integrado de Aquicultura e Estudos Ambientais (GIA)
Universidade Federal do Paraná
Caixa Postal 19073
Curitiba, PR 81531-990
wboeger at ufpr.br
-------Original Message-------

From: John Bruner
Date: 03/31/06 16:05:42
Subject: [TAXACOM] World's longest wood fish ladder?

Does anyone know if the wood fish ladder (1200 feet, built 1959) on the
Yukon River at Whitehorse rapids, Yukon, Canada, is still the world's
longest fish ladder?

Gordon, R. N., R. A. Crouter, & J. S. Nelson. 1960. The Fish Facilities at
the Whitehorse Rapids Power Development, Yukon Territory. Canadian Fish
Culturist. 27:1-14.

* Mr. John C. Bruner *
* Department of Biological Sciences *
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