Heliocidaris crassispina, Purple sea urchin

Heliocidaris crassispina   (Agassiz, 1864)

Purple sea urchin
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Heliocidaris crassispina

Classification / Names Populärnamn | synonymer | CoL | ITIS | WoRMS

Echinoidea | Camarodonta | Echinometridae

Environment: milieu / climate zone / djupintervall / distribution range Ekologi

; djupintervall 0 - 70 m (Ref. 81020).  Tropical

Distribution Länder | FAO områden | Ekosystem | Förekomster | Utplanteringar

Northwest Pacific: Hong Kong.

Length at first maturity / Size / Weight / Age

Könsmognad: Lm ?  range ? - ? cm Max length : 7.7 cm WD hane/ej könsbestämd; (Ref. 126588); rapporterad maxålder: 11 år (Ref. 126586)

Biologi     Ordlista (t.ex. epibenthic)

Found on shallow waters (<5 meters), in intertidal pools (Ref. 124789) with rocky substrate (Ref. 119717). Occur on both sheltered and exposed shores. Clustered in rock crevices, or at the base and undersides of boulders. Aggregation suggests adaptive behavior to wave turbulence (Ref. 127097). An opportunistic feeder, but feeds mainly on algae (Ref. 125532).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | 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 referenser | Koordinator | Medarbetare

Chiu, S.T. 1990 Age and growth of Anthocidaris crassispina (Echinodermata: Echinoidea) in Hong Kong. Bull. Mar. Sci. 47(1):94-103. (Ref. 85020)

IUCN Red List Status (Ref. 130435: Version 2025-1)

  Not Evaluated 

CITES status (Ref. 108899)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Human uses


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Ytterligare information

Trophic Ecology
Food items (preys)
Födosammansättning
Födointag
Predatorer
Ekologi
Ekologi
Population dynamics
Tillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
Life cycle
Reproduktion
Könsmognad
Fecundity
Lek
Eggs
Egg development
Larvae
Distribution
Länder
FAO områden
Ekosystem
Förekomster
Utplanteringar
Physiology
Syreförbrukning
Human Related
Stamps, coins, misc.
Outreach
Medarbetare
Taxonomy
Populärnamn
synonymer
Morfologi
Bilder
referenser
referenser

Internet-källor

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, sök) | Zoological Record

Estimates based on models

Resiliens (Ref. 69278): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.17-0.29; tm=2; tmax=11).
Fishing Vulnerability (Ref. 71543): Moderate vulnerability (36 of 100).
Price category (Ref. 80766): Unknown.

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