Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
; εύρος βάθους 310 - 1500 m (Αναφ. 7414). Polar
Southwest and Antarctic Atlantic: Patagonian coasts, Falkland Island and South Georgia.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 15.0 cm DL αρσενικό/απροσδιόριστο; (Αναφ. 7414)
Stems up to 15 cm long, polysiphonic over a great extension. Branching dichotomous and in one plane. Branches strongly contracted at their base and originating at a position corresponding to a hydrotheca. Both stems and branches flattened. Hydrothecae arranged in subopposite or alternate pairs, forming two longitudinal series. In these series, hydrothecae may be closely approximated.
Length based on stem length. Known at depths of 310 to 2727 m (Ref. 7414).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | 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 Species of Staurotheca Allman, 1888 (Cnidaria; Hydrozoa: Sertulariidae) from US Antarctic expeditions, with the description of three new species. Journal of Natural History 37:2653-2722. (Αναφ. 7414)
IUCN Red List Status
(Αναφ. 130435: Version 2025-1)
CITES status (Αναφ. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Εργαλεία
Περισσότερες πληροφορίες
Τροφική ΟικολογίαFood items (preys)
Σύσταση δίαιτας
Κατανάλωση τροφής
Θηρευτές
Population dynamicsΑύξηση
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Αφθονία
Life cycleΑναπαραγωγήΓεννητική ΩρίμανσηΓονιμότηταΓεννοβολίαEggsEgg developmentLarvae PhysiologyΚατανάλωση οξυγόνου
Human RelatedStamps, coins, misc.
Διαδικτυακές πηγές
Estimates based on models
Preferred temperature
(Ref.
115969): 1.7 - 3.4, mean 2.6 (based on 18 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).