Loch Creran SAC

Status: Designated


Site overview

Loch Creran is situated at the northern end of the Firth of Lorn, and is an important area for biogenic reefs of the calcareous tube-worm. The development by these worms into a type of reef is extremely rare; Loch Creran is the only known site in the UK to contain these living reefs.  There is also another Marine Protected Area here, the Loch Creran MPA. 

MPA Type

Special Area of Conservation

Special Areas of Conservation (SACs) are strictly protected sites designated under European legislation. They contribute both to the UK MPA network and set up to protect habitat types and species considered to be most in need of conservation at a European level (excluding birds).

Designation date

1 March 2001

Surface Area

12.26 km2 (4.73 mi.2)


38.08 km (23.66 mi.)

  • Reefs

    Areas where the bedrock, stable boulders and cobbles or structures created by animals arise from the surrounding seabed. They attract and provide a home to a huge variety of plant and animal life.

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Loch Creran contains some of the best examples of the biogenic serpulid reef habitat. These reefs are comprised of calcareous worm tubes which are very fragile and susceptible to damage from anchoring, mobile gear and adverse weather.

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Did you know?…

Over 170 parliamentarians from across the political spectrum signed up to our Marine Charter calling for a network of ‘marine protected areas’ in UK Seas

To the shelf limits, Scotland has 61% of UK waters, of which 23% are now in existing or new ‘marine protected areas’