Prerequisite: Undergraduate course in marine science. Students from programs other than MarS must have instructor permission to register for this course. The course will address one or a few central topics in pelagic ecology in-depth. It will primarily be based on seminars in which the students will present and discuss scientific papers. The aims are to acquire knowledge of the state-of-the-art of current research questions, as well as to train communication skills and the ability to critically read research papers. Assessment includes a final oral exam.