The Environment Agency has revealed that native oyster populations in England have dropped by 95 percent since the 1800s primarily due to over-fishing. To combat this decline, a new map data layer, available on ArcGIS, has been developed in partnership with universities and other organizations to track historic oyster records and distributions. This tool is designed to support restoration projects and is part of the ReMeMaRe initiative's focus on restoring three estuarine and coastal habitats. The data layer will be supported by maps and handbooks to guide restoration efforts, aiming to reverse the significant loss of native oyster reefs over the past two centuries.