Echinoidea |
Holasteroida |
Pourtalesiidae
Environment: milieu / climate zone / depth range / distribution range
Ecologia
; distribuzione batimetrica ? - 1353 m (Ref. 116836). Polar
Antarctic: Antarctica, Kerguelen and Crozet Islands.
Length at first maturity / Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | Larve
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.
Murray, J. 1896. (Ref. 87480)
IUCN Red List Status (Ref. 130435: Version 2024-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Strumenti
Informazioni ulteriori
Trophic EcologyPrede
Dieta
Consumo di cibo
Razione
Predatori
Population dynamicsAccrescimento
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Reclutamento
Abbondanza
Life cycleRiproduzioneMaturitàFecundityDeposizioneUovaEgg developmentLarveDinamica popolazioni larvali Human RelatedProfilo di acquacoltura
Stamps, Coins Misc.
Fonti Internet
Estimates based on models