8bde6fd1-871f-46da-ae82-f40f84314107
De makrofauna van het harde substraat in de Grevelingen, zeven jaar na de afsluiting (1978). - (The macrofauna of the hard substrate in Lake Grevelingen seven years after the closure)Studies on the black goby (Gobius niger, Gobiidae, Pisces) in the Veerse Meer, SW-NetherlandsDe verspreiding van Rotganzen in het Deltagebied in relatie tot de verspreiding van hun voedsel. (The distribution of Brent Geese in the Delta-area in relation to the distribution of their food)Leaf Production and Nutrient Contents of the Seagrass Thalassodendron-Ciliatum in the Proximity of a Mangrove Forest (Gazi Bay, Kenya)