Natura 2000 A Panacea? Natura 2000 Site Oltul Mijlociucibin-Hârtibaciu (ROSCI0132) ‒ a Local Extinction of a Native Fish Species and a New Alien Fish Arrival Case Study

The Romanian Oltul Mijlociu-Cibin-Hârtibaciu Natura 2000 site of community importance (SCI) was designated for the purpose of protecting biodiversity and maintaining the wild flora and fauna in a favourable conservation status, as well as the natural habitats of conservation interest. This research focused on the possible disparition of one protected fish species Pelecus cultratus (Linnaeus, 1758) and the appearance of an alien one Babka gymnotrachelus (Kessler, 1857), as ecological indicators of the fact that at least this Natura 2000 site is far from being properly protected and a new, more responsible way should be followed and different administrators put in charge of the areas management.