Echinoidea |
Camarodonta |
Strongylocentrotidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 125 m (Ref. 95072). Temperate; 71°N - 32°N, 141°E - 117°W
Arctic and Northern Pacific.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?, range 4 - 5 cm Max length : 19.0 cm WD hane/ej könsbestämd; (Ref. 128652); rapporterad maxålder: 200 år (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).
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.
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 Species 2000 & ITIS Catalogue of Life: 2005 Annual Checklist. CD-ROM; Species 2000: Reading, U.K. (Ref. 19)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
Fiskeri: kommersiell
| FishSource |
Verktyg
Ytterligare information
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 4.1 - 10.7, mean 8.6 (based on 90 cells).
Resiliens
Låg, lägsta populationsfördubblingstid 4,5-14 år (K=0.08).
Fishing Vulnerability
Moderate vulnerability (40 of 100).
