Echinoidea |
Camarodonta |
Strongylocentrotidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 0 - 125 m (संदर्भ 95072). Temperate; 71°N - 32°N, 141°E - 117°W
Arctic and Northern Pacific.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ?, range 4 - 5 cm Max length : 19.0 cm WD पुल्लिंग / अलिंग; (संदर्भ 128652); अधिकतम सूचित उम्र: 200 वर्षो (संदर्भ 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. (संदर्भ 19)
IUCN Red List Status
(संदर्भ 130435: Version 2024-2)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
Human uses
मात्स्यिकी: व्यापारिक
| FishSource |
साधन
अधिक जानकारी
Human RelatedStamps, coins, misc.
इंटरनेट स्रोत
Estimates based on models
Preferred temperature
(Ref.
115969): 4.1 - 10.7, mean 8.6 (based on 90 cells).
लौटाव
निम्न, न्यूनतम जनसंख्या दुगनी होने का समय 4.5 - 14 वर्ष। (K=0.08).
Fishing Vulnerability
Moderate vulnerability (40 of 100).