Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; depth range 180 - 370 m (Ref. 7414). Polar
Antarctic Atlantic: Antarctica, South Shetland Island, South Georgia.
Length at first maturity / Size / Weight / Age
Maturity: Lm ? range ? - ? cm Max length : 38.0 cm H male/unsexed; (Ref. 7414)
Colonies with the appearance of a gorgonid, up to 38 cm high and for a large strongly polysiphonic. Hydrorhiza disc shaped or composed of a few thick stolonal tubes. Branching beginning at base of colony, in one plane and frequent, usually irregular, but sometimes alternate. Branches long, flattened arising branches from which they originate. Many basal branches also polysiphonic.
Length is based on colonies height. Inhabits stones, gravel and sand (Ref. 7414).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Members of the order Leptothecata include L-form hydroids. Life cycle: The zygote develops into planula and later into polyp then into free-swimming medusa.
Peña Cantero, A.L. and W. Vervoort. 2003. (Ref. 7414)
IUCN Red List Status (Ref. 130435)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Age/SizeGrowthLength-weightLength-lengthMorphologyLarvaeAbundance
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): 0.2 - 1.7, mean 0.9 (based on 6 cells).
Vulnerability
Low to moderate vulnerability (28 of 100).
