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The Oder is the last major river in Germany where fish and other animals can still migrate freely over long stretches. Since 2006, it has been the focus area for the reintroduction of the Baltic sturgeon. What is the fate of the sturgeon now?

Neueste Untersuchungen erhärten den Verdacht, dass die Massenentwicklung einer giftigen Brackwasser-Alge in der Oder stattgefunden hat. Von einem natürlichen Phänomen gehen die Forschenden nach wie vor nicht aus, denn die Algenart Prymnesium parvum kommt auf den betroffenen Oder-Abschnitten unter natürlichen Bedingungen nicht massenhaft vor. 

The environmental disaster on the Oder river also leaves researchers from the IGB in a great sense of shock. They the are currently tracking down a strong toxin that can be produced by the algae species Prymnesium parvum. Even if this suspicion is confirmed, it is not a natural phenomenon, but definitely a man-made problem.

Low-growing species such as stoneworts were last sighted in the Müggelsee over a century ago. Now, after 20 years of intensive mapping and diving surveys, not just one but three of these desirable species of underwater vegetation have been found.

Is there an "excess" of aquatic plants? IGB has now published a fact sheet to give all interested parties a brief research-based overview.

German scientists have summarised in a policy brief what smart flood protection should look like and what benefits nature-based solutions in particular provide. 

IGB researchers gave feedback on European energy policy plans.

IGB gives feedback on the EU Call for Evidence.