Journal ArticleDOI
Fish passage experience at small-scale hydro-electric power plants in France
TLDR
In this paper, an overview of the different types of fish facilities in use at small-scale hydro plants is given, with reference to the requirements of migratory species and the site-specific constraints.Abstract:
There are more than 1,700 small-scale hydro-electric power stations in France today, which can be found on the majority of rivers with migratory species in them. This article gives an overview of the different types of fish facilities in use at these small-scale hydro plants. The relative advantages and drawbacks of each type of fish pass are discussed, with reference to the requirements of migratory species and the site-specific constraints. Emphasis is placed on the problems of attraction and maintenance. The article also mentions the various techniques used to evaluate existing or recently constructed fish passes. Experience in using bypass facilities combined with trashracks for downstream juvenile salmonids and eels are related. The author points out the severe cumulative impact which may occur due to the existence of several small-scale hydro projects on the same river. He presents his view on the priorities for research on fish passage facilities, especially on “fish friendly” small-scale hydropower intakes.read more
Citations
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Journal ArticleDOI
A critical life stage of the Atlantic salmon Salmo salar: behaviour and survival during the smolt and initial post-smolt migration.
Eva B. Thorstad,Frederick G. Whoriskey,Ingebrigt Uglem,A. Moore,Audun H. Rikardsen,Bengt Finstad +5 more
TL;DR: In this paper, the authors synthesize and review the environmental factors affecting the migration behavior and survival of smolts and post-smolts during the river, estuarine and early marine phases, and how behavioral patterns are linked to survival.
Journal ArticleDOI
Ecological impacts of run-of-river hydropower plants—Current status and future prospects on the brink of energy transition
TL;DR: In this paper, the authors present a global-scale analysis of the major ecological impacts of three main small run-of-river hydropower types: dam-toe, diversion weir, and pondage schemes.
Journal ArticleDOI
The development of fish passage research in a historical context
TL;DR: The first concerted efforts to develop scientifically-based fishways for upstream migrating fish began in the early 1900s in Europe with field and laboratory testing of different fishway designs as discussed by the authors.
Journal ArticleDOI
Global proliferation of small hydropower plants – science and policy
TL;DR: The potential indiscriminate expansion of SHPs under the pretense of promoting sustainable energy is concerning, and several important steps to help ensure new scientific advances, effective management, and policy reform in the future are identified in this article.
Journal ArticleDOI
The impacts of ‘run-of-river’ hydropower on the physical and ecological condition of rivers
TL;DR: In this paper, the authors synthesize published literature on run-of-river hydropower, highlighting its potential to affect both the physical and ecological conditions of river systems and identify the key issues arising from their continued development.
References
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Book
Fish Migration and Fish Bypasses
TL;DR: Theoretical background of river corridors and fish migration can be found in this article, where a regional overview of fish passage problems and solutions for upstream and downstream fish passage solutions for downstream migrations are discussed.
Journal ArticleDOI
Tests of Two Types of Bypass for Downstream Migration of Eels at a Small Hydroelectric Power Plant
TL;DR: In this article, two bypasses, a surface and a bottom sluice, were tested for the natural downstream migration of silver eels Anguilla anguilla at a small hydroelectric power plant at Halsou, on the River Nive in France.