Pycnogonida |
Pantopoda |
Ammotheidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Benthic; profondeur 90 - 300 m (Réf. 9). Tropical
Indo-West Pacific.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Description synthétique
Morphologie
Trunk: moderately long, completely segmented, glabrous. Lateral processes: well separated, armed with 1-2 dorsodistal setae. Cephalic segment: extending slightly dorsal to tiny chelifores, ocular tubercle at centre of segment, little taller than basal diameter, small eyes at mid-length. Proboscis: short, only about 1.5 times longer than cephalic segment, cylindrical, slightly tapered distally. Abdomen: moderately short, erect. Chelifores: very slender, short, chelae atrophied, armed with few short distal setae. Palps: 9-segmented, Achelia-like, with few ventral setae. Ovigers: 10 segmented, fourth segment longest, second segment longer than fifth, sixth segment with denticulate spine, strigilis segments with 1 -2 denticulate spines with small single denticles to larger spines with many lateral denticles. Leg: major segments with several short tubercles each with long feathered (with many lateral setules) seta. Propodus: short, well curved, claw long, robust, tiny auxiliaries present, shorter than basal claw diameter. Male characters known (Ref. 9).
Continental shelf, slope (Ref. 1456 and 19).
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
Members of the class Pycnogonida are gonochoric and sexually dimorphic. During copulation, male usually suspends itself beneath the female. Fertilization occurs as the eggs leave the female's ovigers. Males brood the egg masses until they hatch. Life cycle: Eggs hatch into protonymphon larva then to adults.
Child, C.A. 1998 The marine fauna of New Zealand: Pycnogonida (sea spiders). NIWA Biodiversity Memoire 109. National Institute of Water and Atmospheric Research (NIWA). Washington, D.C. 20530, USA. 71 p. + Figure 2A-G, 3A-F, 4, 5. (Réf. 9)
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
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). |
Catégorie de prix
(Réf. 80766): |
Unknown. |
