scubaseason

Feather Star

Antedon bifida

Sighting evidence at Dunstaffnage Wall, Oban

Feather stars cling to exposed rock and dead man's fingers colonies on the upper wall, extending their ten feathery arms into the current to capture drifting organic particles. When dislodged, they can swim with a surprisingly graceful undulating motion before settling again on a new perch. Their density on current-exposed sections of the Dunstaffnage wall indicates the high food particle content of the water — a direct result of the adjacent loch's outflow.

Evidence at this site

No confirmed records on file at this site

Feather Star is listed as a curated species here based on historical reports.

How is this calculated?

Sighting evidence is compiled from iNaturalist observation records within a set proximity radius, filtered for quality-grade observations. “Last confirmed” is the date of the most recent research-grade record. Record count covers a rolling 24-month window. Confidence reflects record count, recency, and consistency of seasonal signal.

Also seen at other sites