Common name: long-spined urchin

General information

The Long-spined Sea Urchin, scientifically known as Centrostephanus longispinus, is a species of sea urchin that is notable for its long, sharp spines. These urchins are primarily nocturnal and can often be found hiding in crevices during the day. They are an important part of the reef ecosystem, as they graze on algae and help prevent algal overgrowth.

Care

In the aquarium, Centrostephanus longispinus requires a tank with plenty of live rock and hiding places to mimic its natural habitat. It is essential to maintain stable water parameters and provide a diet rich in algae or seaweed to keep these urchins healthy. They can be sensitive to sudden changes in water quality, so regular monitoring is crucial.

Reproduction

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

Symbiosis

While Centrostephanus longispinus does not have any well-known symbiotic relationships like clownfish with anemones, they do play a significant role in the ecosystem by controlling algae growth and providing habitat for small organisms among their spines.

Habitat

Centrostephanus longispinus is found in the Mediterranean Sea and the eastern Atlantic Ocean, from the British Isles to the coast of West Africa. They inhabit rocky substrates and can be found at depths ranging from shallow waters to over 200 meters.