This Database was developed in the Danubeparks project. It contains almost 10000 fish occurrence data of the Danube river. More about the Danubeparks project: http://danubeparks.org
This database was developed in the Bioregio Carpathians project. It contains 8845 data rows of 786 species. More about the BioRegio Carpatians project: http://www.bioregio-carpathians.eu/
A Duna-Ipoly National Park Directorate's (DINPI) species occurrence database.