• » Scientific Report
    This Scientific Report contains an overview of the key scientific findings made during the Fourth Joint Danube Survey (JDS4, 2019-2020).
  • » Public Report
    This report presents the public with a snapshot of the scientific findings of the Joint Danube Survey 4 (JDS4).
  • » Fish cards
    As part of the efforts surrounding JDS4, these cards were produced as an introduction to the fish families of the Danube River Basin.