DBPapers
DOI:10.5593/SGEM2013/BE5.V1/S20.015

ASPECTS REGARDING ENSURING OF FISH MIGRATION ON THE IAD RIVER. CASE STUDY - BULZ DAM

E. Luca, R. Voicu
Tuesday 6 August 2013 by Libadmin2013

References: 13th SGEM GeoConference on Ecology, Economics, Education And Legislation, www.sgem.org, SGEM2013 Conference Proceedings, ISBN 978-619-7105-04-9 / ISSN 1314-2704, June 16-22, 2013, Vol. 1, 107 - 112 pp

ABSTRACT

This paper treats issues related to longitudinal connectivity of the river Iad, affluent of Crisul Repede River, affected by building of hydro technical construction on his course.
From source to mouth of the Iad River there are located three dams and reservoirs (Lesu, Munteni and Bulz), which are part of the Crisul Repede hydropower establishment.
In order to propose a solution to ensure fish migration upstream to Iad River, it was selected as a case study Bulz dam (H = 17 m), located near the confluence of Iad with Crisul Repede River. The main purpose of Bulz Dam is to allow partial discharge of the diffluent flows, with a satisfactory leveling till the average daily flows.
The solution proposed in this paper, provides a system for facilitate fish migration, made of metal or carbon fiber, fastened to the right abutment of the dam.
Applying the proposed solution will lead to the longitudinal connectivity restoration of Iad River, ensuring the reconnection of habitats and maintaining its diversity on a length of about 5 km upstream the dam.

Keywords: longitudinal connectivity, fish migration, dams, fish pass