Since 2023, FrauVonDa// has been accompanying the ODER~SO project of the Leibniz Institute of Freshwater Ecology and Inland Fisheries. Claudia van Hasselt and Nicolas Wiese are extensively documenting the acoustic diversity of the Oder River and mapping the diversity of life forms. Along the entire course of the river, they are in contact with residents, scientists, art institutions, and colleagues who are dedicated to this unique European body of water.