Hydrozoa |
Leptothecata |
Campanulariidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Demersal; depth range 13 - 380 m (Ref. 7424). Polar
Circum-Antarctic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Stolonal hydrorhiza giving rise, by means of a short apophysis, to erect and slightly sinuous pedicels supporting a single hydrotheca resting on a basal spherule ca 4 cm high and 8.1 cm wide. Wall of pedicel smooth, but sometimes with a few distal annulations. Hydrotheca bell-shaped, ca 72.5 cm high, with a diaphragm (ca 11.3 cm wide) delimiting a small basal hamber (ca 6.4 cm high). Distinct inflexion point present between basal chamber and remaining part of hydrotheca. Hydrothecal diameter strongly increasing after basal chamber; thereafter almost
constant. Maximum diameter at aperture (ca 0.0435 cm). Hydrothecal aperture circular; rim provided with ca 12 blunt cusps, separated by shallow embayments.
Found at depths of 13 to 380 m on bottom of small rocks with red algae (Ref. 7424).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Found colonies with gonothecae in June and August.
Peña Cantero, A.L., A. Svoboda and W. Vervoort. 2004. (Ref. 7424)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
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 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): -1.7 - -0.9, mean -1.3 (based on 8 cells).