PelFish will provide fisheries and ecosystem knowledge to study the possibility to develop or restore small-scale 'niche' seasonal fisheries in the Belgian Part of the North Sea (BPNS). Acoustic and data storage telemetry will be used on several species of pelagic fish to study their movements and essential fish habitats within the BPNS, as well migratory movements at larger scales. The species of study will include Atlantic herring (Clupea harengus), Atlantic mackerel (Scomber scombrus), Twaite shad (Alosa fallax), and European seabass (Dicentrarchus labrax).