Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / depth range / distribution range
Ecology
Demersal; depth range 90 - 522 m (Ref. 7416). Polar
Antarctic Atlantic: South Shetland and Antarctica.
Length at first maturity / Size / Weight / Age
Maturity: Lm ?  range ? - ? cm Max length : 1.5 cm H male/unsexed; (Ref. 7416)
Tiny stems up to ca 0.5 cm long. Stem internodes long and distinctly arranged in zig-zag fashion. Hydrothecae situated at the end of stem internode. Hydrotheca almost tubular and directed up- and outwards. Hydrotheca free for most of its adcauline wall; free part of adcauline hydrothecal wall straight. Hydrotheca with a distinct inflexion point where adcauline wall becomes free. Abcauline wall straight or slightly abcaudally directed at its distal part. Cusps of hydrothecal aperture sharp and separated by deep embayments. Hydrotheca widening at the aperture.
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., 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
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Tools
More information
Trophic EcologyFood items
Diet
Food consumption
Ration
Predators
Population dynamicsGrowth
Age/Size
Length-weight
Length-length
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycleReproductionMaturityFecunditySpawningEggsEgg developmentLarvaeLarval dynamics Human RelatedAquaculture profile
Stamps, Coins Misc.
Internet sources
Estimates based on models
Preferred temperature
(Ref.
115969): -0.9 - 1.1, mean 0.1 (based on 22 cells).
Vulnerability
Low vulnerability (10 of 100).