Native Oyster Historic Locations (MMO)

Sites in England (and Wales) where native oyster may either be currently present, or used to be historically. Point data based on a spreadsheet provided by AER (Aquatic Environmental Research), which was in turn derived by downloading relevant records from OBIS (a global open-access database on marine biodiversity). Irrelevant/duplicate columns were deleted from the spreadsheet, and records classed according to age. The rationale of presenting the data is that the shown points would likely still/again be able to support new, or more extensive, biogenic reefs. This is particularly the case as larval recruitment is thought to be a key condition for the successful restoration or creation of a site. Limitations include those commonly related to the use of open source data (including possible errors, including in the use of species names, geo-referencing, data handling, and mapping), as well as the fact that the presence of a record does not necessarily indicate the presence of a biogenic reef, but may merely show records of individuals. It does also not indicate that all environmental conditions are still suitable for biogenic reef creation (further investigation recommended once preferred sites have been identified). The data may also become outdated, and regular updates should be considered. When investigating Native Oyster presence in a given area, records from further databases should ideally also be consulted, notably that of the National Biodiversity Network. Dataset created as part of the project: Identifying sites suitable for marine habitat restoration or creation (MMO1135) The project aimed to develop a national dataset of sites that are suitable for habitat restoration or creation. The dataset provides information to inform policy development that can help increase the amount of ecologically important habitat, where appropriate and in line with current legislation. More information, supporting documents and guidance can be found HERE.