Pycnogonida |
Pantopoda |
Ammotheidae
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
Récifal; profondeur 0 - 910 m (Réf. 9). Subtropical
Indo-Pacific and Southwest Atlantic. Tropical to temperate.
Longueur à la première maturité / Taille / Poids / Âge
Maturité: Lm ? range ? - ? cm Max length : 0.1 cm TRKL mâle / non sexé; (Réf. 1666)
Description synthétique
Morphologie
Trunk: suture lines complete, partial or lacking. 2 or more dorsomedian tubercles on trunk with or without similar tubercles on abdomen. Lateral processes: broad, more or less contiguous, with distal tubercles which differs in size and number. Proboscis: a slender ovoid as long as trunk. Chelifores: 2-segmented, scape longer than usual, with short dorsodistal tubercles or without. Chelae: tiny nubs, atrophied in adults. Palps: 8 segmented. Ovigers: 10 segmented, smaller in females, armed with 1-2 denticulate spines per distal 3 segments. Legs: slender, with or without low to tall tubercles, mostly dorsal if present. Male femur with 1 dorsodistal cement gland pore. Propodus: well curved, with 3-4 larger heel spines, 7-8 smaller sole spines, robust claw and stout auxiliaries of varying lengths (Ref. 9).
Among intertidal tufts of Cladophora prolifera; in coral reefs (Ref. 1666), until to a depth of at least 250 m (Ref. 92910). Inhabits hydrozoan trees, stones, dead corals and red algae (Ref. 92908).
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) |
Low vulnerability (10 of 100). |
Catégorie de prix
(Réf. 80766): |
Unknown. |
