Phymatolithon calcareum,ithothamnion corallioides

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Phymatolithon calcareum

Maerl beaches, the cast-up remains of coralline algae, are stunnily beautiful marine phenomena found at a few remote locations in the west of Ireland. The beach above is at An Cheathrú Rua (Carreroe or Carraroe), Co. Galway about 25 miles west of Galway city. Frequently called "coral strands" or "coral Beaches" they have nothi to do with animal corals but are the remains of seaweeds that grow in detached, rock-like growths in the subtidal. These beaches are a unique and very fragile part of our natural heritage and no such material should be removed; in fact it is illegal to remove any material from Irish beaches without a license. People think that small amounts won't matter, but they do when there are 1000's of people involved. /

Location/common name:- Ma?rl Coral beaches Coral strands chalk weed lithothamne maerle merl

lower mid-littoral