Echinoidea | 
Camarodonta | 
Strongylocentrotidae
			
			
			
				Environment: milieu / climate zone / εύρος βάθους / distribution range				
				
					Οικολογία				
				
			
			
				;  εύρος βάθους 0 - 125 m (Αναφ. 95072).  Temperate; 71°N -   32°N, 141°E -   117°W			
			
			
				
			
			
			
				Arctic and Northern Pacific.
			
			
			
			
			
				Length at first maturity / Μέγεθος / Weight / Age
			
			
				Γεννητική Ωρίμανση: Lm ?, range 4 -  5 cm Max length : 19.0 cm WD αρσενικό/απροσδιόριστο; (Αναφ. 128652); μεγ. αναφερόμενη ηλικία: 200 έτη (Αναφ. 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 Species 2000 & ITIS Catalogue of Life: 2005 Annual Checklist. CD-ROM; Species 2000: Reading, U.K. (Αναφ. 19)
			
			
			
			
			
			
			
					
						IUCN Red List Status    
						 (Αναφ. 130435: Version 2025-1)
					
					
					
				
			
			
			
			
				CITES status   (Αναφ. 108899)
			
			
				
					Not Evaluated				
			
			
			
			
			
			
				
					Not Evaluated				
			
			
			
			
			
				Threat to humans  
			
			
				
									
			
			
			
			
			
			
			
			
				Human uses  
			
			
				αλιεία: Εμπορικό(ά)			
			
			
				 | FishSource | 			
			
			
			
			
			
Εργαλεία
			
			
			
			
				
					Περισσότερες πληροφορίες				
				
					 Human RelatedStamps, coins, misc.
  
			 
			
			
			
				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).				
			
			
						
							
				
					
						Fishing Vulnerability  					
					
					
						Moderate vulnerability (40 of 100).