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Red sea star (Echinaster sepositus)

Photo of Red sea star (Echinaster sepositus)

Key facts

Scientific name
Echinaster sepositus
Common name
Red sea star
Category
Echinoderms
Family
Echinasteridae
Genus
Echinaster
Size
10–30 cm
Depth
1–250 m
IUCN status
Least concern (LC)
Danger level
Harmless
Habitats
rocky-reef, seagrass
Behaviours
benthic, predator
Ocean zones
East Atlantic, Macaronesia, Mediterranean

Description

Echinaster sepositus reaches 30 cm. Mediterranean and temperate East Atlantic sea star with body of 5 very elongated thin arms (cylindrical) with scattered papulae, characteristic uniform vivid red color (hence red sea star), sometimes orange or purple. Lives from 1 to 250 m on rocky bottoms, seagrass and coralligenous of Mediterranean. Opportunistic carnivore feeding on sponges, hydroids, ascidians and detritus. Capable of regenerating complete arms. Iconic photo subject of Med dives for its bright red and graceful silhouette.

Photo of Red sea star

Photo of Red sea star (Echinaster sepositus)Photo of Red sea star (Echinaster sepositus)Photo of Red sea star (Echinaster sepositus)

Frequently asked questions

How big is the Red sea star?
Red sea star (Echinaster sepositus) reaches 10–30 cm in length.
At what depth can you find the Red sea star?
Red sea star is found between 1–250 m deep.
Is the Red sea star dangerous to divers?
Danger level: Harmless.
What is the conservation status of the Red sea star?
IUCN status: Least concern (LC).
Where can you find the Red sea star?
Found in: East Atlantic, Macaronesia, Mediterranean.

Similar species

  • Paracentrotus lividus - Purple sea urchin
  • Astropecten aranciacus - Red comb star
  • Ophiothrix fragilis - Common brittle star
  • Holothuria tubulosa - Tubular sea cucumber
  • Ophidiaster ophidianus - Purple sea star
  • Hacelia attenuata - Attenuated sea star

Sources

  • Taxonomy: WoRMS (AphiaID 241001)
  • Photos: iNaturalist (CC BY-NC)
  • Distribution: GBIF (taxonKey 2273623)
  • Conservation: IUCN Red List
  • Encyclopedia: Wikipedia