Database of the widely distributed data for freshwater fish occurrences of the countries of the Western Balkans (Slovenia, Croatia, Bosnia & Herzegovina, Montenegro, Macedonia). These data are actually hidden in databases of national fisheries institutes, databases of regional fish collections and as well in grey literature (about 700 references). These databases and literature resources will be collected together, and the records will be georeferenced and organized into one database (using Artedian http://artedi.nrm.se/fishbase_se/software/artedian/). More information on this dataset can be found in the Freshwater Metadatabase - BF_CF13 (http://www.freshwatermetadata.eu/metadb/bf_mdb_view.php?entryID=BF_CF13).