In the UK, cold-water coral reefs are found on the seabed off Scotland. Like their tropical counterparts, the reefs are a living organism built of thousands of individual polyps, anemone-like creatures that share a hard skeleton. These reefs develop over many hundreds of years, with live coral sitting on top of layers of now-empty skeleton, sand and mud. The polyps feed by extending their stinging tentacles into the water column to catch plankton, krill and other small crustaceans. Lophelia reefs can become large, highly branched colonies which create a very strong, long-lasting structure. The reef creates a habitat for other marine life, with many deep sea species depending on them for food and shelter.
How to identify
A highly branching white coral that forms reefs on the deep seabed.
Did you know?
Lophelia reefs grow very slowly - only between 4 - 25mm per year! As such, the biggest reefs are likely to be thousands of years old with some recorded as growing in iceberg plough marks made during the last ice age.
