Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 310 - 1500 m (संदर्भ 7414). Polar
Southwest and Antarctic Atlantic: Patagonian coasts, Falkland Island and South Georgia.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ?  range ? - ? cm Max length : 15.0 cm DL पुल्लिंग / अलिंग; (संदर्भ 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
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | 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 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. (संदर्भ 7414)
IUCN Red List Status
(संदर्भ 130435: Version 2025-1)
CITES status (संदर्भ 108899)
Not Evaluated
CMS (संदर्भ 116361)
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
साधन
अधिक जानकारी
Trophic EcologyFood items (preys)
संघटक आहार
आहार खपत
परभक्षी
Population dynamicsबाढ़
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
बहुतायत
Life cycleपुनरुत्पत्तिपरिपक्व अवधिFecundityमछलीऔ का अंडे देनाEggsEgg developmentLarvae PhysiologyOxygen consumption
Human RelatedStamps, coins, misc.
इंटरनेट स्रोत
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).