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

[Walter Boeger]

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!

Cheers

Walter

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
Brazil
55-41-33611765
55-41-35730192
wboeger at ufpr.br
http://zoo.bio.ufpr.br/mono
http://gia.bio.ufpr.br
-------Original Message-------

From: John Bruner
Date: 03/31/06 16:05:42
To: TAXACOM at LISTSERV.NHM.KU.EDU
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.

John
******************************************************
* Mr. John C. Bruner *
* Department of Biological Sciences *
* University of Alberta *
* Edmonton, Alberta _______/////____/~~)______/==== *
* T6G 2E9 CANADA /_ @ > />...w...w.........===== *
* (780) 492-5408 \ ______________,__________===== *
* FAX: (780) 492-9234 \> \> \==== *
* VIRTUAL FAX: (780) 492-2216 *
* EMAIL: jbruner at ualberta.ca *
* HOME PAGE:http://www.ualberta.ca/~jbruner/ *
******************************************************



--
No virus found in this incoming message.
Checked by AVG Free Edition.
Version: 7.1.385 / Virus Database: 268.3.3/298 - Release Date: 30/3/2006

.