Today, Federal Environment Minister Steffi Lemke visited the Leibniz Institute of Freshwater Ecology and Inland Fisheries (IGB) in Berlin to learn about the first interim results of the special investigation programme on the environmental disaster in the Oder River (“ODER~SO”), which has been funded by the Federal Ministry for the Environment, Nature Conservation, Nuclear Safety and Consumer Protection (BMUV) since February 2023. Fish stocks in the Oder River have declined by 53 to 67 per cent as a result of last summer’s environmental disaster, especially midstream.