Echinoidea |
Spatangoida |
Spatangidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
Revassocierade; djupintervall 0 - 60 m (Ref. 800). Tropical
Entire tropical Indo-West Pacific, except Arabian Gulf, Pakistan and West India.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ? range ? - ? cm
Occurs at depths from 0 to 60 m in sandy intertidal and seagrass areas. Feeds by non-selective deposit feeding (Ref. 824).
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.
Schoppe, S. 2000 A guide to common shallow water sea stars, brittle stars, sea urchins, sea cucumbers and feather stars (echinoderms) of the Philippines. Times Media Private Limited, Singapore. 144 p. (Ref. 800)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFood items (preys)
Födosammansättning
Födointag
Predatorer
Population dynamicsTillväxtMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundans PhysiologySyreförbrukning
Human RelatedStamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): 24.7 - 28.9, mean 27.7 (based on 580 cells).
Price category
Unknown.
