Today only approximately 12% of the historical acreage of underwater grasses remain in the Bay.Grasses are good for the Bay! They provide important habitat for juvenile fish and crabs, filter polluted runoff from land, release oxygen into Bay waters, and supply food for waterflow and other aquatic species. In the weeks prior to NOAA Restoration Day in Virginia, volunteers grew trays of wild celery in their offices and classrooms for planting at VCU's Rice Center.