10th Symposium on the Flora of Southeastern Serbia and ...

10 th <strong>Symposium</strong> on the Flora of Southeastern Serbia and Neighbouring regions,Vlasina 17 to 20 June 2010Ichthyological integral indices, the history of developmentand possibility of application on rivers in Serbia:Stojković, M. 1 , Simić, V. 21 Odsek za biologiju i ekologiju, Prirodno-matematički fakultet, Univerzitet uNišu, Srbija2 Institut za biologiju i ekologiju, Prirodno-matematički fakultet, Univerzitet uKragujevcu, Srbijamilicastojkovic83@gmail.comBased on a literature review, the different approaches in the water qualityassessment using fish communities in freshwaters are summarized. Fish assemblageindicators, developed throughout the world, were reviewed and the main differencesin methodologies, number of metrics and values are summarized. We have drawnattention to the methods used for designing a fish-based index with a particular focuson original developments in North America and its adaptations in many differentregions and habitat types. Gaps in ecological information and classification could bea serious problem to ecological assessments. The lack of knowledge is especiallytrue for species assemblages in the relatively unexplored river basins of Europe, e.g.The Balkans peninsular.Axenically culturing the bryophyte Herzogiella seligeri(Brid.) Z. Iwats.Vujičić, M., Sabovljević, A., Sabovljević, M.Institute of Botany and Garden Jevremovac, Faculty of Biology, University ofBelgrade, Serbiamilorad@bio.bg.ac.rsA moss genus Herzogiella, from the pleurocarpous family Hypnaceaecontains only seven species world wide. It occurs in North, Central and SouthAmerica, Europe and Asia. In Europe, only three species occurred, namely H.seligeri, H. striatella and H. turfacea of which, the last one is threatened. With aimto develop the methodology for protection, conservation and active propagation ofH. turfacea, more commonly distributed counterpart, H. seligeri, were taken fromthe National Park Fruška Gora and axenically culture were established. The studygives overview into the problems of sterilization, in vitro establishing, development,propagation and biology of species, as well as indices applicable to threatenedcounterpart.65