Technical Solutions to Mitigate Shifting Fish Fauna Zones Impacted by Long Term Habitat Degradation in the Bistra Mărui River – Study Case

Abstract

The Bistra Mărului River fish fauna has been severely impacted by man-made activities, especially through longitudinal fragmentation, over the past 40 years. Fish fauna monitoring revealed structural changes and technical methods have been proposed, in order to restore the natural connectivity and the conservation of fish species. Benefits should accrue for key species: Salmo trutta fario, Cottus gobio, Thymallus thymallus, Eudontomyzon danfordi, Eudontomyzon vladykovi, Gobio uranoscopus, Barbus meridionalis, and Condrostoma nasus.

Caraş River Gorge Aspects of Salmonids’ Communities Management – Technical Solutions

“…Human-made obstacles in lotic systems (culverts, weirs, and dams) generally have environmental impact, often affecting freshwater fish species, many of which are of economic importance (Gumpinger and Scheder, 2008;Trichkova et al, 2009;Jeeva et al, 2011;Rumana et al, 2015; Curtean- Bănăduc et al, 2015;Weis, 2018). The fish populations in Carpathian streams and rivers of Romania are no exception in this respect, with numerous reports of impacted populations (Curtean- Bănăduc et al, 2014Bănăduc et al, , 2018Costiniuc and Davideanu, 2006;Bănăduc et al, 2002Bănăduc et al, , 2010.…”