Classification / Names
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Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Coelorinchus: Greek, koilos = a hollow + Greek, rhyngchos = jaw (Ref. 45335); obscuratus: Name from the Latin for darkened or obscured..
More on authors: McMillan & Iwamoto.
Environment: milieu / climate zone / depth range / distribution range
Écologie
marin bathydémersal; profondeur 1013 - 1460 m (Ref. 80968). Deep-water
Western Pacific, known only from the continental slope of the West Norfolk ridge west of New Zealand and the Norfolk Ridge south of New Caledonia.
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 45.0 cm TL mâle / non sexé; (Ref. 80968)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
This species is distinguished by the following characters: almost no scales on the ventral surface of the head; nasal fossa with a large scaleless area anteriorly extending to nasal ridge and ventrally to or near suborbital ridge; lacks external evidence of a light organ; anus immediately before anal fin origin; long snout, about 2.0-2.3 into head length (HL), with strong terminal scute, which is elongate ventrally, anterolateral margins not completely supported by bone; grayish brown body, no prominent marking s; narrow blackish eye ring; dusky to black lips, mouth, and gill cavities (Ref. 80968).
Apparently a deepwater species and have a very low abundance as it was taken only in small numbers (Ref. 80968).
Life cycle and mating behavior
Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larves
McMillan, P. and T. Iwamoto, 2009. Two new species of Coelorinchus (Teleostei, Gadiformes, Macrouridae) from the Tasman Sea. Proc. Calif. Acad. Sci. 60(4):39-51. (Ref. 80968)
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
Preferred temperature (Ref.
123201): 2.9 - 4.9, mean 4 °C (based on 173 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00251 (0.00128 - 0.00492), b=3.19 (3.03 - 3.35), in cm total length, based on LWR estimates for this Genus-body shape (Ref.
93245).
Niveau trophique (Ref.
69278): 3.6 ±0.5 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Faible, temps minimum de doublement de population : 4,5 à 14 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low to moderate vulnerability (35 of 100).
