Allochthonous ichthyofauna of certain water bodies in North-Eastern Bosnia

Abstract

Researches on fish diversity in North-Eastern Bosnia have been intensified in the last few years, and they have included several flowing rivers and two reservoirs. Ichthyological investitations were performed on the Gostelja, Spreča, Tinja and Brka rivers and the hydro reservoirs of Modrac and Sniježnica. During the research relatively wide fish species diversity was noted, and the presence of allochthonous species of the Salmonidae, Cyprinidae, Ameiuridae and Centrarchidae families was registered. There were the Prussian carp and the pseudorasbora of the Cyprinidae family; the rainbow trout of the Salmonidae family; the brown bullhead of the Ameiuridae family; the perch – Percidadae family; the pumpkinseed – Centrarchidae family. All of these registered allochthonous species have large habitats in Bosnia & Herzegovina, and in the broader region.