Spatial distribution of grazers in Noord-Friesland buitendijks
Jaeger, J. de (Student); Verburg, A. (Student); Hofman, P.A.G.; Strijkstra, A.M.
Season, sex and age variation in the diet of harbour porpoises (Phocoena phocoena) in the Dutch North Sea area
Nieuwenhuijsen, E. (Student); Hofman, P.A.G.; Strijkstra, A.M.



























