Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / εύρος βάθους / distribution range
Οικολογία
βενθικό(ς); εύρος βάθους 15 - 640 m (Αναφ. 7414). Polar
Antarctic-Patagonian.
Length at first maturity / Μέγεθος / Weight / Age
Γεννητική Ωρίμανση: Lm ?  range ? - ? cm Max length : 9.0 cm COLD αρσενικό/απροσδιόριστο; (Αναφ. 7414)
Monosiphonic colonies composed of a mass of branches and stems, irregularly branched in several planes and with anastomoses, up to 90mm in diameter, with the appearance of closely knitted net. Hydrothecae arranged in decussate pairs forming four longitudinal rows of hydrothecae. Hydrothecae immersed into the branches for approximately one-quarter of their volume and strongly curving outwards. Adcauline hydrothecal wall with a considerable free portion, adnate to internode for ca half or slightly more of its length. Free part of adcauline wall straight or slightly convex; abcauline wall concave. Hydrothecal aperture circular and tilted downwards; rim even and usually with numerous renovations. Female and male gonothecae present, both inserting individually at hydrothecal base. Female gonotheca urn-shaped; basal part ovoid, widening distally, apex contracted into a short neck bearing the aperture. Male gonotheca fusiform, with a distal, cone-shaped neck provided with a small, circular aperture.
Gonothecae with a few striae at base of neck.
Species had been found at depths 15 to 640 m on stony bottoms (Ref. 7414).
Life cycle and mating behavior
Γεννητική Ωρίμανση | Αναπαραγωγή | Γεννοβολία | Eggs | Γονιμότητα | Larvae
Fertile colonies are found in February.
Peña Cantero, A.L. and W. Vervoort. 2003. (Αναφ. 7414)
IUCN Red List Status
(Αναφ. 130435: Version 2024-2)
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): 0.3 - 7.6, mean 5.4 (based on 227 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).