Echinoidea |
Echinolampadacea |
Dendrasteridae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 0 - 90 m (Ref. 95072). Temperate
Eastern Pacific: Alaska to Mexico.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 100.0 cm WD male/unsexed; (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
Maturity | Reproduction | Spawning | 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 |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowth
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
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.
