Echinoidea |
Echinolampadacea |
Dendrasteridae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 0 - 90 m (Ref. 95072). Temperate
Eastern Pacific: Alaska to Mexico.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm Max length : 100.0 cm WD hane/ej könsbestämd; (Ref. 865)
It is found partially or completely buried in sand from the low intertidal to a depth of 90 meters (Ref. 865).
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.
Sept, J.D. 2008 Common seashore creatures of the Pacific Northwest. Canada, Calypso Publishing, 95p. (Ref. 94194)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundans
PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 7.9 - 12.9, mean 9.7 (based on 104 cells).
Fishing Vulnerability
High vulnerability (60 of 100).
Price category
Unknown.
