Horse mussel beds - Modiolus modiolus beds on open coast circalittoral mixed sediment (Priority Marine Feature) (SNH WMS)

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The Priority Marine Feature (PMF) list contains 81 habitats and species considered to be of conservation importance in Scotland's seas. It includes many features which are characteristic of the Scottish marine environment, ranging from flame shell beds in coastal waters, to cold-water coral reefs of the deeper seas, and mobile species such as minke whale and basking shark.

This layer shows the distribution of Horse mussel (Modiolus modiolus)  beds on open coast circalittoral mixed sediments . They are typically found in current swept areas at depths of 50-100m, the horse mussels support a rich diversity or organisms, especially polychate worms, bivalves and brittlestars. The only known records from Scotland are from Sullom Voe, Shetland and Hoy Sound, Orkney.

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