One of the documents underlying the ecological reconstruction measures was the report entitled The study of the conservation status of the fish population on the Gilort River. The study focused mainly on species of community interest, namely: southern barbel, golden spined loach, brook lamprey, white - finned gudgeon, danube whitefin gudgeon and european bitterling. Samples were collected from 21 sampling sections (13 at the Natura 2000 site, 8 outside it)