scubaseason

Plumose Anemone

Metridium senile

Sighting evidence at Svolvær Wall, Lofoten Islands

Plumose anemones colonise virtually every square centimetre of Svolvær Wall below 10 metres, their feathery white crowns waving in the gentle current to create an otherworldly snowfield effect along the rock face. They are filter feeders that benefit from the nutrient-rich Arctic water flowing through Lofoten's passages, and colonies here grow to exceptional size — individual animals can reach 30 centimetres in height and live for many decades. The dense anemone beds shelter large numbers of juvenile fish, amphipods, and tiny crustaceans that form the base of the reef food web.

Evidence at this site

No confirmed records on file at this site

Plumose Anemone 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