To better understand the ecology and conservation needs of thornback rays along the Swedish west coast, we aim to tag approximately 60 individuals and track their movements using the acoustic receiver infrastructure maintained by our team, as well as the expanding networks operated by DTU Aqua (Denmark) and the Institute of Marine Research (Norway). This work is part of several broader initiatives, including the ETN-associated DTOTrack project, which seeks to develop a Digital Twin of the Ocean by integrating movement data from marine animals. Through this study, we aim to gain new insights into the spatial behaviour and habitat use of spiny dogfish across coastal and offshore areas of the Skagerrak and Kattegat seas. The Department of Wildlife, Fish, and Environmental Studies at the Swedish University of Agricultural Sciences manages this work.