Marine Intertidal video of Wales, Pen Llyn a'r Sarnau SAC

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Uploaded by on Jul 16, 2009

The Countryside Council for Wales, in combination with Aquatic Survey and Monitoring Ltd (ASML) undertakes intertidal monitoring of the habitats and species of the Pen Llyn ar Sarnau Special Area of Conservation (SAC). An interesting rocky shore habitat is the honeycomb worm (Sabellaria alveolata) reef , which binds the cobbles and boulders, forming a species rich habitat on the sea shore. Changes in the reef alters boulder stability, effecting their role as coastal sea defences. CCW uses transect and quadrat techniques to measure the reef extent and diversity at Llandanwg and Criccieth.

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