Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Sessile; depth range 20 - 640 m (Ref. 7416). Polar
Circum-Antarctic.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 4.5 cm H male/unsexed; (Ref. 7416)
Colonies composed of a stolonal hydrorhiza giving rise to erect, monosiphonic and sparingly branched stems up to 4.5 cm high. Branches irregularly branched in several planes, occasionally with anastomoses. Hydrothecae alternately arranged in approximately one plane. Hydrotheca large, almost cylindrical; markedly bent abcaudally, usually with a clear
inflexion point where adcauline hydrothecal wall becomes free. Adcauline hydrothecal wall adnate for approximately one-third of its length; free part of adcauline wall convex. Abcauline wall concave. Cusps of hydrothecal aperture sharp and separated by deep embayments.
Gonothecae oval, inserting at hydrothecal base. Gonothecal aperture situated at the end of a short and wide distal neck, slightly widening distally. Gonothecal wall slightly undulated and with fine striae.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Fertile colonies were collected on January.
Peña Cantero, A.L., A. Svoboda and W. Vervoort. 2002. (Ref. 7416)
IUCN Red List Status (Ref. 130435: Version 2024-1)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Tools
More information
Trophic EcologyFood items
Diet
Food consumption
Ration
Predators
Population dynamicsGrowthAge/SizeLength-weightLength-lengthLength-frequenciesMass conversionRecruitmentAbundance Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvaeLarval dynamics Human RelatedAquaculture profile
Stamps, Coins Misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): -1.8 - 0.3, mean -1 (based on 157 cells).
Vulnerability
Low vulnerability (10 of 100).