Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / गहराई सीमा / distribution range
पारिस्थितिकी
; गहराई सीमा 45 - 1042 m (संदर्भ 7414). Polar
Circum-Antarctic.
Length at first maturity / आकार / Weight / Age
परिपक्व अवधि: Lm ? range ? - ? cm Max length : 13.0 cm COLD पुल्लिंग / अलिंग; (संदर्भ 7414)
Colonies formed by a mass of stems and branches up to 13 cm in diameter. Branching frequent and irregular, with frequent anastomoses, giving the colony a compact appearance. Hydrothecae arranged in decussate pairs, forming four longitudinal rows. Hydrotheca small, with a small part immersed into the branch, cylindrical, more or less abcaudally directed. Adcauline hydrothecal wall adnate to internode for ca seven-eighths to one-half of its length. Free adcauline wall straight, or slightly concave or convex. Abcauline hydrothecal wall concave or straight. Hydrothecal aperture laterally depressed, resulting in the presence of both an adcauline and an abcauline cusp; the latter sometimes much better developed than the former. Hydrothecal diaphragm mushroom-shaped.
Eurybathic species found on bottoms of small rocks with red algae, formed by bryozoans, hydrozoans, sponges, alcyonarians and ascidians; bottoms of pebble and gravel, mud with stones (Ref. 7414).
Life cycle and mating behavior
परिपक्व अवधि | पुनरुत्पत्ति | मछलीऔ का अंडे देना | Eggs | Fecundity | Larvae
Found in gonothecae in January, February and December. Fertile colonies were found in January to March and May to June.
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): -1.5 - 1.2, mean -0.5 (based on 306 cells).
Fishing Vulnerability
Low vulnerability (10 of 100).
