Hydrozoa |
Leptothecata |
Sertulariidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Bathydémersal; profondeur 100 - 1158 m (Réf. 7414). Polar
Circum-Antarctic.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Description synthétique
Morphologie
Hydrothecae arranged in decussate verticils of three to four hydrothecae forming six to eight longitudinal rows. Hydrothecae immersed into the stem and branches for approximately half their volume and adnate for almost full adcauline length. In lateral view hydrotheca cylindrical and slightly curved outwards. In frontal view maximum hydrothecal diameter at the hydrothecal base, from where diameter smoothly decreasing towards the aperture. Abcauline hydrothecal wall slightly concave. Hydrothecal aperture circular and tilted downwards, forming an acute angle with long axis of stem. Rim of hydrotheca even, frequently with a few, short renovations. Diaphragm mushroom-shaped, with two abcauline projections pointing towards the hydrothecal lumen. Both male and female gonothecae present, originating at the hydrothecal base. Proximal part of female gonotheca cone-shaped, distally with a wide neck bearing a strongly laterally depressed aperture due to the presence of two lips of approximately equal development. Male gonotheca fusiform, provided with a distal neck bearing a small, circular aperture.
Maximum depth from Ref. 92909. Found on pebbles, gravel bottoms and stones at depths between 100 m (Ref. 7414) to 1,158 m (Ref. 92909).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Fertile colonies were collected in January, February and April; materials were collected in January and March having gonothecae.
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. (Réf. 7414)
Statut dans la liste rouge de l'IUCN
(Réf. 130435: Version 2025-2 (Global))
statut CITES (Réf. 108899)
Not Evaluated
Not Evaluated
Menace pour l'homme
Harmless
Utilisations par l'homme
FAO - Publication: search | FishSource |
Outils
Plus d'informations
Écologie trophiqueAliments (proies)
Composition du régime alimentaire
Consommation alimentaire
Prédateurs
Dynamique des populationsCroissance
Âges / tailles maximales
Longueur-poids rel.
Rel. longueur-longueur.
Fréquences de longueurs
Conversion de masse
Abondance
Cycle de vieReproductionMaturitéFéconditéFraiŒufsDéveloppement de l'œufLarves PhysiologieConsommation d'oxygène
Liées à l'hommeTimbres, pièces de monnaie, divers
Sources Internet
Estimations basées sur des modèles
Vulnérabilité de la pêche (Réf. 71543) |
(0 of 100). |