Classification / Names
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Ophidiiformes (Cusk eels) >
Ophidiidae (Cusk-eels) > Neobythitinae
Etymology: Penopus: Greek, penia, -as, penomai = poverty + Greek, pous = feet; japonicus: Named for the type locality, Japanese waters..
More on authors: Nielsen & Ohashi.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin benthopélagique; profondeur ? - 3924 m (Ref. 87601). Subtropical
Northwest Pacific: Ryukyus, Japan.
Taille / Poids / Âge
Maturity: Lm ?  range ? - ? cm
Max length : 22.9 cm SL mâle / non sexé; (Ref. 87601)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Rayons mous dorsaux (Total) : 117; Rayons mous anaux: 89; Vertèbres: 75. This species is distinguished from the Atlantic species by having fewer rays in the dorsal 117 (vs. 135-158) and anal 89 (vs. 106-122) fins; head squamation restricted to the middle part of the preopercle (vs. head almost fully scaled - over the dorsum, preopercle and the opercle in part); a distinct spine behind the posterior nostril (vs. spine hardly visible); 9 spines on the hind margin of the preopercle (vs. 4-7 spines) (Ref. 87601).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
Nielsen, J.G. and S. Ohashi, 2011. A new species of Penopus (Teleostei: Ophidiidae) from the Ryukyu Trench, the West Pacific, with remarks on Penopus microphthalmus. Ichthyol. Res. 58(3):232-237. (Ref. 87601)
Statut dans la liste rouge de l'IUCN (Ref. 130435)
Menace pour l'homme
Harmless
Utilisations par l'homme
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00110 (0.00041 - 0.00296), b=3.08 (2.85 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.5 ±0.6 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 vulnerability (18 of 100).