Pink Sea Fan

Overview

The Pink Sea Fan (Eunicella verrucosa) is a colonial, arborescent soft coral known for its distinct, fan-like structure. It is a temperate species primarily found in the northeastern Atlantic Ocean and the western Mediterranean Sea, where it plays a vital role in creating complex benthic habitats.

Distribution & habitat

This species is native to the northeastern Atlantic, ranging from the southwestern coasts of Britain and Ireland down to northwest Africa, including Mauritania. It is also present in the western Mediterranean. It typically inhabits rocky substrates, including bedrock and boulders, often in areas with moderate water movement such as tidal streams or wave-exposed sites. While it can be found in shallower waters, it also extends into mesophotic depths.

Appearance

Colonies are characterized by dense, profuse branching that usually grows in a single plane, oriented at right angles to prevailing currents to maximize feeding efficiency. The branches are covered in prominent, wart-like growths called calyces, from which small, anemone-like polyps emerge. While often salmon-pink or orange-pink, the coloration can vary significantly, ranging from deep red to white. Colonies typically reach heights of 25 to 50 cm, though they can occasionally grow larger.

Biology & behavior

As a colonial organism, the Pink Sea Fan functions as a single unit, with nutrients captured by individual polyps distributed throughout the colony via internal channels. It is a slow-growing species, which makes local populations vulnerable to physical disturbance. The species is considered sensitive and is listed as vulnerable on the IUCN Red List, with some regions implementing protective measures to prevent damage from activities like dredging.