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Echinothrix diadema   (Linnaeus, 1758)

Blue-black sea urchin

Native range | All suitable habitat | Point map | Year 2050
This map was computer-generated and has not yet been reviewed.
Echinothrix diadema  AquaMaps  Data sources: GBIF OBIS
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Echinothrix diadema

Classification / Names Common names | Synonyms | CoL | ITIS | WoRMS

Echinoidea | Diadematoida | Diadematidae

Environment: milieu / climate zone / depth range / distribution range Ecology

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

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Indo-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 (Ref. 81254), coral reefs and sandy areas (Ref. 129602). A generalist herbivore displaying nocturnal feeding behavior (Ref. 81254). Known to graze (Also Ref. 129602) on organic material and adults may also feed on live hard corals. Sometimes associated with commensal shrimp Stegopontonia commensalis (Ref. 800). Commonly found with Diadema spp. Bioeroder. Feeds on small and turf algae over hard substrates (Ref. 129602).

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. 130435)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Venomous (Ref. 129602)

Human uses

Fisheries: commercial
| FishSource | Sea Around Us

Tools

E-book | Field guide

More information

Countries
FAO areas
Ecosystems
Occurrences
Introductions
Stocks
Ecology
Diet
Food items
Common names
Synonyms
Predators
Reproduction
Maturity
Spawning
Fecundity
Eggs
Egg development
Age/Size
Growth
Length-weight
Length-length
Morphology
Larvae
Abundance
References
Mass conversion
Collaborators
Pictures

Internet sources

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

Estimates based on models

Preferred temperature (Ref. 115969): 24.7 - 28.9, mean 27.5 (based on 362 cells).
Price category (Ref. 80766): Unknown.
Nutrients: Calcium = 126 [75, 177] mg/100g; Iron = 5.08 [1.67, 7.92] mg/100g; Protein = 12%; Omega3 = 0.331 [0.263, 0.400] g/100g; Selenium = 0.04 [48.48, 67.17] μg/100g; VitaminA = 0 μg/100g; Zinc = 1.97 [0.92, 3.02] mg/100g (wet weight).