The Department of Wildlife, Fish and Environmental Studies, at the Swedish University of Agricultural Sciences (SLU), operates a number of acoustic telemetry networks both nationally and internationally. We consider some of our networks as permanent, as we aim to keep some infrastructure in place indefinitely. That said, the exact position and the number of receivers will change over time.
Here we present our 69kHz network in lake Hjälmaren. This network is led primarily by Dr. Gustav Hellström.