Plumose Anemone

Photo: Attila Oláh · CC BY

Snow-white plumose anemones have carpeted the superstructure and rails of the Dettifoss, their feathery tentacles creating a ghostly halo effect in torch light. This species thrives on hard substrate in cold nutrient-rich water, and the wreck provides ideal settlement surface in an otherwise soft-bottomed fjord environment. Colonies can persist for decades, making long-established wrecks like this one among the most biodiverse artificial reefs in Arctic waters.