Ophiuroidea |
Euryalida |
Gorgonocephalidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Benthic; depth range 20 - 1180 m (Ref. 87801). Polar
Southeast Pacific, Southwest Atlantic and Antarctic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm
It is found on gorgonians from the genera Primnoella and Thouarella at depths of 20 to 1180 m (Ref. 87801).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the class Ophiuroidea are mostly gonochoric, others are protandric. Fertilization is external. Brooding is common, bursae is used as brood chambers where the embryos develop into juveniles and later crawl out from the bursal slits. Life cycle: Embryos hatch into free-swimming planktotrophic larvae and later metamorphose into tiny brittle stars which sink down the bottom where they grow into adult form.
Stöhr, S. 2010 Astrotoma agassizii Lyman, 1875. In Stöhr, S., O’Hara, T. (Eds) (2010). World Ophiuroidea database. Accessed through: De Broyer, C.; Clarke, A.; Koubbi, P.; Pakhomov, E.; Scott, F.; Vanden Berghe, E. and Danis, B. (Eds). The SCAR-MarBIN Register of Antarctic Marine Species (RAMS) at http://www.scarmarbin.be/rams.php?p=taxdetails&id=173167 on 2011-07-25. (Ref. 87417)
IUCN Red List Status
(Ref. 130435: Version 2025-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items (preys)
Diet composition
Food consumption
Predators
Population dynamicsGrowthMax. ages / sizesLength-weight rel.Length-length rel.Length-frequenciesMass conversionAbundance Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 0.1 - 5.8, mean 1.2 (based on 501 cells).
