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Pink sea fan

Did you know we have colourful corals in UK seas? Pink sea fans are a type of horny coral - related to the sea fans found in the tropics. Don't be fooled by their name though, pink sea fans can actually be pink, orange or white.

Enw gwyddonol

Eunicella verrucosa

Pryd i'w gweld

January to December

Species information

Ystadegau

Height: 25-50cm
Nationally scarce and globally vulnerable. Here in the UK, the pink sea fan is protected under the Wildlife and Countryside Act 1981. It is also a Priority Species under the UK Post-2010 Biodiversity Framework and a Feature of Conservation Importance for which Marine Conservation Zones can be designated. The pink sea fan is classified as Vulnerable on the global IUCN Red List.

Cynefinoedd

Ynghylch

Pink sea fans are a type of horny coral known as a "gorgonian". Each sea fan is a colony of individual animals, or polyps, that share a hard skeleton. They live affixed to rocky surfaces under the sea, often at right angles to the current to make the most of the food passing by; as the anemone-like polyps use their stinging tentacles to catch plankton from the water column. Most pink sea fans grow to a height of around 25cm, but some have been recorded at a whopping 50cm tall and 1m across - not bad when you consider how slowly they grow! Pink sea fans also provide a home to other sea creatures, including the rare sea fan anemone and a sea slug that actually feeds on its sea fan host.

Sut i'w hadnabod

Sea fans form branching fan shaped colonies affixed to rocks. Their branches are covered in warty protuberances from which the small anemone-like polyps emerge. Colonies may be up to 50 cm high but are more often up to 25 cm. Although known as the pink sea fan, they can vary in colour from white to orange to deep pink.

Dosbarthiad

In Britain, the pink sea fan is restricted to South West England and South Wales. Found in shallow waters between 10 and 50m deep.

Roeddech chi yn gwybod?

Pink sea fans grow incredibly slowly - only 1cm a year - so the largest sea fans may be over 50 years old!