Also in 2009, the Nature Conservancy received a $4 million grant for its Grand Isle shoreline-restoration project, which will create four miles of oyster reefs along the beach in Grand Isle and Biloxi Marsh. (see Oyster Reef Restoration) The frames eventually grow into oyster reefs that buffer the shore and create productive ocean habitats for fish. Once these reefs have fully restored themselves, they will also help filter the water. The Nature Conservancy hope that these oysters colonize on breakwater structures and that the space on these breakwater structures increase biodiversity.