Echinoidea |
Camarodonta |
Echinometridae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 0 - 70 m (Αναφ. 81020). Tropical
Northwest Pacific: Hong Kong.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ? range ? - ? cm Max length : 7.7 cm WD αρσενικό/απροσδιόριστο; (Αναφ. 126588); μεγ. αναφερόμενη ηλικία: 11 έτη (Αναφ. 126586)
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).
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.
Chiu, S.T. 1990 Age and growth of Anthocidaris crassispina (Echinodermata: Echinoidea) in Hong Kong. Bull. Mar. Sci. 47(1):94-103. (Αναφ. 85020)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Ελαστικότητα
Μεσαίο(α), ελάχιστος χρόνος για διπλασιασμό πληθυσμού 1,4 - 4,4 έτη (K=0.17-0.29; tm=2; tmax=11).
Fishing Vulnerability
Moderate vulnerability (36 of 100).
Price category
Unknown.
