Common names from other countries
Environment: milieu / climate zone / depth range / distribution range
Οικολογία
; εύρος βάθους 0 - 125 m (Ref. 95072). Temperate; 71°N - 32°N, 141°E - 117°W
Arctic and Northern Pacific.
Length at first maturity / Μέγεθος / Βάρος / Age
Maturity: Lm ?, range 4 - 5 cm Max length : 19.0 cm WD αρσενικό/απροσδιόριστο; (Ref. 128652); μεγ. αναφερόμενη ηλικία: 200 έτη (Ref. 128652)
Harvestable size is around 9-10 cm test diameter (4-5 years in age) (Ref. 121955). Found in relatively high energy environments on open rocky intertidal and subtidal shores (Ref. 121802). Herbivorous grazer in nearshore habitats (Ref. 121801). Kelp forest species (Ref. 121804). Found in concentrated amount at the apex of the holdfast of the giant kelp Macrocystis pyrifera (Ref. 121803).
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.
Bisby, F.A., M.A. Ruggiero, K.L. Wilson, M. Cachuela-Palacio, S.W. Kimani, Y.R. Roskov, A. Soulier-Perkins and J. van Hertum. 2005. (Ref. 19)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Human uses
αλιεία: Εμπορικό(ά)
| FishSource |
Εργαλεία
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): 4.1 - 10.7, mean 8.6 (based on 90 cells).
Ελαστικότητα
Χαμηλό, ελάχιστος χρόνος για διπλασιασμό πληθυσμού 4,5 - 14 έτη (K=0.08).
