<abstract xml:lang="en" xmlns="http://www.w3.org/1999/xhtml"><p>This article gives an overview the impact hydroelectric power facilities on ichthyofauna and river ecosystems. Issues addressed include the destruction of fish by grates and turbines; disturbances in the hydrological regime of rivers; changes in the water physicochemical regime resulting from damming; the muddying of spawning and feeding grounds. Suggestions are made for counteracting these disadvantageous transformations. This is achieved by equipping hydroelectric facilities with appropriate safety devices that lead fish away from the facility to a secure place where they can swim safely downstream, and also eliminate sharp fluctuations in water level that can occur below dams. It was determined that none of the existing methods eliminate ichthyofauna losses. It is recommended to combine several protection methods such as grates and electric barriers. Due to the negative impact hydroelectric plants have on the ichthyofauna, it is essential that the energy consumers participate in the costs of fish stocking to compensate for losses.</p></abstract>

This article gives an overview the impact hydroelectric power facilities on ichthyofauna and river ecosystems. Issues addressed include the destruction of fish by grates and turbines; disturbances in the hydrological regime of rivers; changes in the water physicochemical regime resulting from damming; the muddying of spawning and feeding grounds. Suggestions are made for counteracting these disadvantageous transformations. This is achieved by equipping hydroelectric facilities with appropriate safety devices that lead fish away from the facility to a secure place where they can swim safely downstream, and also eliminate sharp fluctuations in water level that can occur below dams. It was determined that none of the existing methods eliminate ichthyofauna losses. It is recommended to combine several protection methods such as grates and electric barriers. Due to the negative impact hydroelectric plants have on the ichthyofauna, it is essential that the energy consumers participate in the costs of fish stocking to compensate for losses.

Hydroelectric Facilities And Fish

Department of River Fisheries, The Stanisław Sakowicz Inland Fisheries Institute, Olsztyn, Poland

Fisheries & Aquatic Life

{"article-title":"Hydroelectric Facilities And Fish"}

This article gives an overview the impact hydroelectric power facilities on ichthyofauna and river ecosystems. Issues addressed include the destruction of fish...

Hydroelectric Facilities And Fish

Publié en ligne: 30 déc. 2008

Pages: 203 - 212

DOI: https://doi.org/10.2478/s10086-008-0017-1

Mots clés
Hydroelectric Facilities, Ichthyofauna, Consequential Effects, River Ecosystems

This content is open access.

Hydroelectric Facilities And Fish

Publié en ligne: 30 déc. 2008

Pages: 203 - 212

DOI: https://doi.org/10.2478/s10086-008-0017-1

Mots clésHydroelectric Facilities, Ichthyofauna, Consequential Effects, River Ecosystems

This content is open access.

Mots clés
Hydroelectric Facilities, Ichthyofauna, Consequential Effects, River Ecosystems