Native European flat oyster (Ostrea edulis) reefs have strongly declined in the Dutch Delta, motivating restoration efforts that use engineered substrates to support settlement and early reef development. In Lake Veere, Project Asta tests the Mother Reef concept: biodegradable clay blocks that are conditioned …

The restoration of native flat oyster (Ostrea edulis) reefs in Lake Veere is a key ecological goal of the Oyster Heaven project. However, successful reef development may be hindered by predation. The European green crab *(Carcinus maenas),* a known bivalve predator in Lake Veere. This study investigated …

Oyster reefs were once abundant in European waters, but they are now rare. In Zeeland, the wild population of the native flat oyster (Ostrea edulis) has declined significantly in recent decades, with serious implications for coastal water health in relation to biodiversity and water quality (Colsoul …