Dr. Gerjan Piet is a senior scientist in marine ecology, specialised in ecosystem effects of fishing and ecosystem-based management. He is heavily involved in developing MSFD descriptors and indicators (lead Task group descriptor 3, commercial fish and shellfish). He coordinated FP6 – 044227 (IMAGE) and was Work Package lead in many other projects (e.g. EFEP, INEXFISH, MEECE, MEFEPO, ODEMM). As part of the European Environment Agency’s European Topic Centre on Inland, Coastal and Marine waters, he is working on the development of a framework for marine ecosystem services and accounting. He was involved in the evaluation of Dutch Natura 2000 areas and will lead WP8 and the marine case study in AQUACROSS.