Common name: Bispinosus Sand Star

Scientific name: Astropecten bispinosus (Otto, 1823)
Giovane esemplare di stella marina, Astropecten bispinosus, tra la sabbiaSea star, Astropecten Bispinosus, Tarkarli beach, Malvan, Maharashtra, India

General information

The Bispinosus Sand Star, Astropecten bispinosus, is a species of sea star found in the Mediterranean Sea and parts of the Atlantic Ocean. It is known for its distinctive two rows of spines along the margins of its arms, which give it its common name. This sea star is an active predator, primarily nocturnal, feeding on a variety of invertebrates such as mollusks and small crustaceans.

Details

Recommended minimum tank volume
150 liter (40 gallons)
Salinity
S.G. 1.023 to 1.025
Temperature
22 to 26 °C (72 to 79 °F)
Acidity
pH 8.1 to 8.4
Average size
20 cm (8″)
Care level
Moderate to easy Sand bed required for burrowing
Diet
Carnivore Feeds on benthic invertebrates
Reefsafe
Yes
Aggression
Peaceful
Captive bred
No

Taxonomy

  1. Kingdom
    Animals
    Animalia
  2. Phylum
    Echinoderms
    Echinodermata
  3. Class
    Starfish
    Asteroidea
  4. Order
    Sand Stars
    Paxillosida
  5. Family
    Sand Sifting Starfish
    Astropectinidae
  6. Genus
    Sand Sifting Starfish
    Astropecten
  7. Species
    Bispinosus Sand Star
    Astropecten bispinosus (Otto, 1823)
  8. Synonyms
    Asterias bispinosa Otto, 1823
    Astropecten echinatus Gray, 1840
    Astropecten myosurus Perrier, 1869
    Stellaria bispinosa Nardo, 1834

Care

In the aquarium, Astropecten bispinosus requires a sandy substrate to mimic its natural habitat where it can burrow and hide. It is important to provide a tank with ample space for this sea star to roam. They are sensitive to water quality, so maintaining pristine conditions with stable parameters is crucial. They should be fed a varied diet that includes meaty foods like chopped clams, shrimp, and other marine-based proteins.

Reproduction

Reproduction in Astropecten bispinosus typically involves the release of gametes into the water column, where fertilization occurs externally. In an aquarium setting, breeding is less common, but with optimal conditions, it is possible to observe spawning behavior.

Habitat

The Bispinosus Sand Star is found in a range of depths from shallow waters to about 100 meters deep. It prefers sandy or muddy substrates where it can easily burrow. Its natural range extends from the Mediterranean Sea to the eastern Atlantic, including the coasts of West Africa.