Pycnogonida |
Pantopoda |
Ammotheidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Bathypélagique; profondeur 183 - 1789 m (Réf. 9). Subtropical
Southeast Atlantic and Indo-West Pacific.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm
Description synthétique
Morphologie
Trunk: fully segmented with long neck and closely spaced lateral processes. Tall dorsomedian trunk tubercles have 2 to 3 long lateral setae, ocular tubercle at extreme anterior of segment is tall slender cone without eyes, with pair of long setae flanking posterior base. Anterior of cephalic segment flaring, with low tubercles each having short seta which match dorsodistal rims of lateral processes. Some short setae on anterior and posterior of each lateral process. Proboscis: large, ovoid, without constrictions. Abdomen: moderately long, distally swollen, bearing 2 to short dorsal setae. Chelifores: very short, scapes 2 segmented, first segment extremely short, hidden by cephalic segment hood, both armed with several long setae. Chelae: atrophied, tiny slender cones with lateral stub representing movable finger. Palps: typical, 9 segmented. Ovigers: Ammothella-like, with non-functioning strigilis having 2 to 3 slender denticulate spines. Terminal: segment not longer than wide. Legs: long, slender, with many long lateral and dorsal setae. Propodus: slender, well curved, with 3 larger heel spines and many smaller sole spines. Claw: quite long, strongly curved, auxiliaries very short. Male cement gland tube: not within conical tubercle, situated at about 0.6 length of femur dorsum, angled distally (Ref. 9).
Depth based on occurrence record; to be replaced with better reference.
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. |
