Echinothrix diadema   (Linnaeus, 1758)

blue-black sea urchin

Native range | All suitable habitat | Point map | Year 2100
This map was computer-generated and has not yet been reviewed.
Echinothrix diadema   AquaMaps   Data sources: GBIF OBIS
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Echinothrix diadema
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Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Echinoidea | Diadematoida | Diadematidae

Environment / Climate / Range Ecology

Reef-associated; depth range 1 - 40 m (Ref. 800).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-West Pacific: from Indian Ocean to Tahiti and from Japan to South Pacific Islands.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 20.0 cm WD male/unsexed; (Ref. 87895)

Biology     Glossary (e.g. epibenthic)

Occurs in shallow coral and coral rubble areas at depths of 1 to 40 m. A generalist herbivore displaying nocturnal feeding behavior (Ref. 81254). Known to graze on organic material and adults may also feed on live hard corals. Sometimes associated with commensal shrimp Stegopontonia commensalis (Ref. 800). Members of the class Echinoidea are gonochoric. Fertilization is external. Brooding is common, eggs are held either on the peristome, around the periproct or deep into the concavities on the petaloids. Life cycle: Embryos develop into planktotrophic larvae (echinoplateus) and live for several months before they sink to the bottom using their tube feet to adhere on the ground where they metamorphose into young urchins (Ref. 833).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Members of the class Echinoidea are gonochoric. Fertilization is external. Brooding is common, eggs are held either on the peristome, around the periproct or deep into the concavities on the petaloids. Life cycle: Embryos develop into planktotrophic larvae (echinoplateus) and live for several months before they sink to the bottom using their tube feet to adhere on the ground where they metamorphose into young urchins.

Main reference References | Coordinator | Collaborators

Schoppe, S. 2000. (Ref. 800)

IUCN Red List Status (Ref. 115185)

CITES status (Ref. 108899)

Not Evaluated

Threat to humans

Human uses


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More information

Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion

Internet sources

BHL | BOLD Systems | CISTI | DiscoverLife | FAO(Publication : search) | GenBank (genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | ispecies | PubMed | Scirus | Tree of Life | uBio | uBio RSS | Wikipedia (Go, Search) | Zoological Record

Estimates of some properties based on models

Price category (Ref. 80766)
Unknown