Background
Tiengemeten is an island estuary of the rivers Rhine and Meuse, just south of Rotterdam. Since the last embankment in 1860, Tiengemeten consists of 700 ha arable land and 300 ha reedbeds. As a result of the construction of a dam in 1970, the tidal ebb and flow in the estuary practically ceased. The effect has had serious consequences for the ve ...