A survey by JNCC in partnership with Cefas to Wight Barfleur Reef Special Area of Conservation. Located in the central English Channel, Wight Barfleur Reef is characterised by a series of well-defined exposed bedrock ridges, up to 5 m high, together with areas of flat, smooth mudstone and sandstone with overlying coarse sediment (gravels, cobbles and boulders), which in places forms stony reef, which has been designated to protect the EU Habitats Directive (1992) Annex I habitat feature Reefs.

This dataset contains the findings from the analyses of data gathered during a seabed survey of Scanner Pockmark SCI. The pockmark and unit pockmark features present are a series of crater-like depressions on the seafloor. These structures consist of large blocks, pavements, slabs and smaller fragments of carbonate rock, including methane-derived authigenic carbonate (MDAC). The features are classified as the Directives Annex I habitat Submarine structures made by leaking gases even in the absence of MDAC as the qualifying feature has been recorded in the past, and the presence of leaking gases is inferred from high reflectance backscatter data.

This dataset includes the findings from the seabed survey of the Braemar Pockmarks and Scanner Pockmark Sites of Community Importance (SCI), as defined in the European Commission Habitats Directive 92/43/EEC. The pockmark features present within both of the SCIs are a series of crater-like depressions on the seafloor, and can include the Directives Annex I habitat Submarine structures made by leaking gases. These structures consist of large blocks, pavements, slabs and smaller fragments of carbonate rock, including methane-derived authigenic carbonate (MDAC).