Green Surf Anemone

Scientific Name Anthopleura xanthogrammica

Native To Northern Pacific Ocean

Habitat Found in shaded tidal pools and surge channels on or near the shore

Diet Primarily feed on urchins, small fish, clams and mussels, and detritus

Size and Age These anemones reach a maximum size of 30 cm diameter and can live 75 years under human care.

Natural History

This anemone is green because of a symbiotic relationship with algae. The algae lives inside the anemones tissue (hence the green colour) and through photosynthesis can provide nourishment to the anemone.

Near Threatened

Conservation Status

Two major threats facing these anemones are loss of suitable habitat and pollution such as oil spills and agricultural runoff. As ocean levels rise the tidal pools these specialized animals live in become unsuitable.

Interesting Facts

  • To catch fish, these anemones can sting using their tentacles surrounding their mouth. Once the prey has been immobilized, it is brought into the anemones mouth and eaten.
  • A drug has been derived from Green Anemones that has been useful in combating heart disease.
  • Fish can develop a resistance to anemone stings by coating their body in mucus.