 | COPESCAL TECHNICAL PAPER 5 Structures assisting the migrations of non-salmonid fish: Latin Americaby  FOOD AND AGRICULTURE ORGANIZATION OF THE UNITED NATIONS |
| The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. |
The designations employed and the presentation of material in this publication do not imply the expression of any opinion whatsoever on the part of the Food and Agriculture Organization of the United Nations concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries.
M-43
ISBN 92-5-102683-1
All rights reserved. No part of this publication may be reproduced, stored in a retrieval system, or transmitted in any form or by any means, electronic, mechanical, photocopying or otherwise, without the prior permission of the copyright owner. Applications for such permission, with a statement of the purpose and extent of the reproduction, should be addressed to the Director, Publications Division, Food and Agriculture Organization of the United Nations, Via delle Terme di Caracalla, 00100 Rome, Italy.
PREPARATION OF THIS DOCUMENT
During discussions on international riverine watershed management at the second meeting of the Latin American Inland Fishery Commission (Santo Domingo, 1981), the Commission identified the major points to be studied by the Working Party on Fishery Resources in an attempt to reduce the negative effects of dam construction in the region's large catchment basins. One of these points concerned the design and installation of structures to help fish migrate. The subject was dealt with in later meetings of the Working Party and the data available at regional level, contained in this paper, were compiled by a consultant engaged by FAO to put the Commission's recommendation into effect. The paper was edited by FAO's Inland Water Resources and Aquaculture Service.
Another publication on the same subject dealing with the experience in the USSR, by D.S. Pavlov, is published as FAO Fisheries Technical Paper, No. 308, under the title: Structures assisting the migrations of non-salmonid fish: USSR.
Distribution:
FAO Latin American Offices
Members of the Working Party
on Fishery Resources
Author
© FAO 1989
| Quirós, R. Structures assisting the migrations of non-salmonid fish: Latin America. COPESCAL Technical Paper. No. 5. Rome, FAO. 1989. 41p. |
| ABSTRACT |
| This technical paper summarizes data available in Latin America on structures designed to help fish surmount the obstacles which hinder their migrations and which are due to dam construction. It analyses installation designs, modes of operation and efficiency and discusses the reasons on which the decision to construct these facilities rather than use other fishery management methods, such as the stocking of migratory species were based. Reference is made to the existing laws which require fish pass structures to be built in dams. |
1. INTRODUCTION AND BACKGROUND
2. EFFECTS OF DAM CONSTRUCTION ON FISH COMMUNITIES NATIVE TO LATIN AMERICAN RIVERS
3. SWIMMING CHARACTERISTICS OF LATIN AMERICA'S FISH
4. FISH PASS INSTALLATIONS CURRENTLY IN USE
5. PLANNED FISH PASS INSTALLATIONS
6. ASSESSING THE EFFICIENCY OF FISH PASS INSTALLATIONS
6.1 Cachoeira de Emas Fish Ladder, Brazil
6.2 Borland-Type Lock, Salto Grande, Argentina - Uruguay
8. HATCHERIES FOR PRODUCTION OF FISH FOR STOCKING AND FISH PASS INSTALLATIONS