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Anguilliformes (Eels and morays) >
Ophichthidae (Snake eels) > Ophichthinae
Etymology: Apterichtus: From the Greek απτερόν (apteron), without fins, and ίχθύς (ichtus, more correctly written ichthys; masculine), fish.; orientalis: The name orientalis refers to its type locality, the Far East..
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin démersal; profondeur 79 - 81 m (Ref. 101270). Temperate
Northwest Pacific: known only from the type locality, off the Kii Peninsula, western Japan.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 44.3 cm TL mâle / non sexé; (Ref. 13362); 31.8 cm TL (female)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 0; Rayons mous dorsaux (Total) : 0; Épines anales: 0; Rayons mous anaux: 0; Vertèbres: 133. This species is distinguished by the following characters: tail 1.8, head 12-14, and body depth 53-55 in total length; preopercular pores 3 and pores in supratemporal canal 7; conical teeth, uniserial, 9 in ethmoidal region, 1 tooth on vomer; body coloration uniform pale yellow with small brownish dots, lighter ventrally; MVF 54-132, total vertebrae 131-133 (n=2) (Ref. 101270).
Inhabits sandy mud bottoms.
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Machida, Y. and S. Ohta, 1994. A new snake-eel, Apterichtus orientalis, from the Pacific coast of western Japan (Opichthinae, Ophichthidae). Jap. J. Ichthyol. 41(1):1-5. (Ref. 13362)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
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Sources Internet
Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00089 (0.00039 - 0.00204), b=3.00 (2.80 - 3.20), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.9 ±0.7 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Haut, temps minimum de doublement de population inférieur à 15 mois (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (34 of 100).