After 25 years, the programme to reintroduce the European sturgeon into the Elbe and the Gironde is now bearing fruit – adult specimens have returned to the rivers for the first time this year. In an interview, IGB scientist Jörn Geßner tells of the obstacles encountered along the way, as well as more fortunate occurrences. And he explains why the task of reintroducing sturgeon into the North and Baltic Seas will continue to be difficult despite past successes.
