The effects of sand and shell extraction on hydrography and morphology, sediment transport, turbidity, nutrients, oxygen and trace metals, on suspended matter concentrations in organisms and the disturbance of birds and seals have been examined. A brief summary is given.
auteur(s): by K. Essink; Ministerie van Verkeer en Waterstaat, Rijkswaterstaat, Tidal Waters Division = Dienst Getijdewateren