The overall aim of the working group "fishing gear technology" at the Thünen-Institute of Baltic Sea Fisheries is to improve the sustainability of fishing activity to reduce unwanted effects on populations and the environment (e.g. discards, adverse effects on populations, energy consumption, bottom contact). We are working on trawl gears and passive gears (e.g. reduction of bycatch of marine mammals and birds). The work can combine practical aspects (e.g. experiments at sea) with technology (gear technology and observation technology) and statistical work. The specific topic of the thesis will be discussed and can be chosen from a wide range of different topics - depending on the interests of the student and the current research foci from the group.