Abstract
Due to its natural features, the Neretva River has been interesting throughout its stream for the construction of energy facilities, as well as its tributaries Rama, Trebišnica, Tihaljina, Lištica. Jablanica (1955), HPP Rama (1968), CHE Čapljina (1979), HPP Salakovac (1981), HPP Grabovica (1982), HPP Mostar (1987), HPP Peć Mlini, HPP Mostarsko blato have been built on the Neretva River and its tributaries. HPP. The aim of this paper is to determine the state of chemical and physical parameters of water in reservoirs and streams, as well as the parameters of the aquatic environment in which endemic salmonids previously lived and the possibility of revitalization of these watercourses. The ecological conditions of the Neretva reservoirs for the life of Neretva-endemic fish and the similarity to the conditions in the natural course of Neretva before the construction of the dam were examined. The research was conducted during 2017 and 2018 at several locations in the Neretva river basin (reservoirs and streams).