Does the site contain cold water coral reef?
Reefs are defined as any biologically created hard structures that rise from the sea floor. Cold water coral reefs grow in deep cold water (4 – 12 deg C, 50 to >2000 m depth). Most commonly occurring species is Lophelia pertusa. Source: http://www.unep.org/cold_water_reefs/comparison.htm and http://www.jncc.gov.uk/ProtectedSites/marine/coral.