This study is the first research paper in a series of three, prepared for a PECH Committee Workshop. It reviews the state of the art of transmitted positional data systems, high resolution and synthetic aperture radar (SAR) for satellite image data used in fisheries control and fisheries research. It identifies the strengths and weaknesses of such systems and provides policy recommendations for a more effective fisheries control system based on currently applied electronic technologies (ET).Source : © European Union, 2021 - EP