Since 2017, Herwig Turks artistic research has focused on the Tagliamento in northern Italy and on other river ecologies, such as the Danube in the Viennese area, or the rivers in the Bolzano area for which he regularly collaborates with a number of artists, scientists, and environmental organisations. Central topics revolve around landscapes as more-than-anthropocentric laboratories, as exemplary ecological assemblages characterised by various conflicts between economy, technology, culture, and non-human agencies, between appropriation, exploitation, and care. Turk uses the term ‘interstitial space’ [Lückenraum] to frame the frictions, the differences between these different systems of practice and knowledge, as well as to describe a common ground for actors and agencies who largely remain invisible when articulating the conflict in the first place.