Heliocidaris crassispina   (Agassiz, 1864)

Purple sea urchin
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Heliocidaris crassispina

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

Echinoidea | Camarodonta | Echinometridae

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

Benthic; depth range 0 - 70 m (Ref. 81020).  Tropical

Distribution Countries | FAO areas | Ecosystems | Occurrences | Introductions

Northwest Pacific: Hong Kong.

Length at first maturity / Size / Weight / Age

Maturity: Lm ?  range ? - ? cm Max length : 7.7 cm WD male/unsexed; (Ref. 126588); max. reported age: 11 years (Ref. 126586)

Biology     Glossary (e.g. epibenthic)

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

Chiu, S.T. 1990. (Ref. 85020)

IUCN Red List Status (Ref. 130435: Version 2024-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Tools

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Trophic Ecology
Food items
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Predators
Ecology
Ecology
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Population dynamics
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Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
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Reproduction
Maturity
Fecundity
Spawning
Eggs
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Larvae
Larval dynamics
Distribution
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FAO areas
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Introductions
Human Related
Aquaculture profile
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Taxonomy
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References
References

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

Resilience (Ref. 69278): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.17-0.29; tm=2; tmax=11).
Vulnerability (Ref. 71543): Moderate vulnerability (36 of 100).
Price category (Ref. 80766): Unknown.

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