Hydrozoa |
Leptothecata |
Sertulariidae
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
; djupintervall 45 - 1042 m (Ref. 7414). Polar
Circum-Antarctic.
Length at first maturity / Size / Weight / Age
Könsmognad: Lm ?  range ? - ? cm Max length : 13.0 cm COLD hane/ej könsbestämd; (Ref. 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
Könsmognad | Reproduktion | Lek | 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. (Ref. 7414)
IUCN Red List Status
(Ref. 130435: Version 2024-2)
CITES status (Ref. 108899)
Not Evaluated
Not Evaluated
Threat to humans
Harmless
Human uses
| FishSource |
Verktyg
Ytterligare information
Trophic EcologyFödoslag
Födosammansättning
Födointag
Food rations
Predatorer
Population dynamicsTillväxt
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Rekrytering
Abundans
Life cycleReproduktionKönsmognadFecundityLekEggsEgg developmentLarvaeLarvdynamik Human RelatedAquaculture profiles
Stamps, coins, misc.
Internet-källor
Estimates based on models
Preferred temperature
(Ref.
115969): -1.5 - 1.2, mean -0.5 (based on 306 cells).
Vulnerability
Low vulnerability (10 of 100).