Edited by Ken Whelan, Dylan Roberts and Janina Gray The Atlantic Salmon Trust, Salmon & Trout Conservation and the Game and Wildlife Conservation Trust are delighted to publish the proceedings of the 2019 SAMARCH Project International Salmonid Coastal and Marine Telemetry Workshop, which was held in Southampton on the 5th and 6th of November 2019. The aim of the workshop was to bring together leaders in the field, raise awareness of projects, discuss the techniques used, results found, emerging new…