Ross worm (Credit Peter Tinsley)
The ross worm and the horse mussel are both features of conservation importance species and have been identified as nationally important to protect.
This recommended MCZ includes a variety of important habitats off the coast of Anglesey, Wales.
The nature of the seabed has been shaped by glacial and subterranean activity forming glacial drumlins and carbonate slabs. The site also hosts rocky habitat, mixed sediments, sands and gravel, which create a base for many species to colonise.
Did you know that the carbonate slabs in this area are structures formed by leaking methane gas from the seabed? They support a rich mixture of species including ross worms and sponges. Ross worms and horse mussels are features of conservation importance species and have been identified as nationally important to protect.
This recommended Marine Conservation Zone is ON HOLD at the moment as Defra has indicated that there is not enough evidence to support designation.
We need you to urge Defra to use this data gathered as soon as possible to consider designation of this site in a future tranche:
Defra has indicated that it requires additional evidence for all but one of the species or habitats recommended for protection by stakeholders before it can consider designation of this site. This site contains the largest area of subtidal coarse sediments and mixed sediments in the region and is the only site proposed for high energy coastal rock within the Irish Sea. Furthermore, it contains a glacial feature - drumlins. These are large, egg-shaped ridges and not currently protected within the Irish Sea. Defra has carried out additional survey work in this site in 2012 but that has not been taken into account in this consultation.
We need you to urge Defra to use this data as soon as possible to consider designation of this site in a future tranche.
Other nearby MCZs
Mid St. Georges Channel Hilbre Island Group
Location map
North St Georges Channel recommended MCZ is located in the map below.

Contains UKHO Law of the Sea data. Crown copyright and database right and contains Ordnance Survey Data Crown copyright and database 2012
Downloads
| Filename | File size |
|---|---|
| North St George’s Channel.pdf | 285.01 KB |





