Coelorinchus nox

Coelorinchus nox Nakayama, 2020

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drawing shows typical species in Macrouridae.

Klassifizierung / Names Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa

> Gadiformes (Cods) > Macrouridae (Grenadiers or rattails)
Etymology: Coelorinchus: Greek, koilos = a hollow + Greek, rhyngchos = jaw (Ref. 45335)nox: Name from Latin noun 'nox' meaning 'darkness', referring to the characteristic dark coloration of the species.

Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet Ökologie

seewasser benthopelagisch; tiefenbereich 560 - 815 m (Ref. 123356). Temperate

Verbreitung Territorien | FAO Gebiete | Ökosysteme | Vorkommen | Punkt Karte | Einführungen | Faunafri

Northwest Pacific: Japan.

Größe / Gewicht / Alter

Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 44.0 cm TL Männchen/unbestimmt; (Ref. 123356)

Kurzbeschreibung Bestimmungsschlüssel | Morphologie | Morphometrie

This species is distinguished by the following characters: external light organ is a short, narrow, naked fossa immediately anterior to anus, its anterior margin falling far short of line connecting inner pelvic-fin bases; underside of head is mostly scaled except for a narrow to moderately broad naked area above the upper lip, and anterior parts of mandibular rami; dorsal surfaces of snout fully scaled; snout long and sharply pointed, its length 62-81% postrostral length (PRL); dorsal profile of snout is slightly concave in lateral view; terminal scute moderately short, diamond-shaped, dorsoventrally flattened, its length 12-17% PRL; lateral nasal ridge completely supported by a nasal bone, moderately convex in dorsal view, giving spade-shaped appearance to snout; anus is slightly separated from anal-fin origin; premaxillary teeth small, conical, arranged in a short, uniformly wide band, none distinctly enlarged (outer series slightly larger); posterior margin of tooth band falling far short of lateral corner of the mouth; body scales are covered with short, reclined, keel-like spinules in widely divergent, coarsely saw-tooth ridges, and every spinule row is complete, extending to posterior scale margin, the spinules in each row greatly overlapping, increasing in height posteriorl, while buttresses are narrowly developed; occipital scales covered with short, erect, needle-like spinules in 4 or more widely divergent, comb-like rows; orbit diameter 45-52% PRL; suborbital width 18-23% PRL; internasal width 27-31% PRL; interorbital width 39-41% PRL; pectoral-fin length 57-69% PRL; pectoral-fin rays i16-i17; transverse scale rows below first dorsal-fin midbase 3.5-4.5. Colouration: body uniformly dark brown, no dark saddles or blotches; lips pale to dusky; oral cavity blackish; gular and branchiostegal membranes are heavily peppered with small melanophores; first dorsal, pectoral, and pelvic fins are uniformly blackish (Ref. 123356).
Cross section: compressed.

Biologie     Fachlexikon (Englisch) (z.B. epibenthic)

Lebenszyklus und Paarungsverhalten Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven

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Nakayama, N., 2020. Grenadiers (Teleostei: Gadiformes: Macrouridae) of Japan and adjacent waters, a taxonomic monograph. Megataxa 3(1):1-383. (Ref. 123356)

IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))


CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Bedrohung für Menschen

  Harmless





Nutzung durch Menschen

Fischereien: nicht kommerziell
FAO - Publication: search | FishSource |

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Schätzungen auf der Grundlage von Modellen

Phylogenetischer Diversitätsindex (Ref. 82804):  PD50 = 0.5000   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00257 (0.00132 - 0.00501), b=3.19 (3.02 - 3.36), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophische Ebene (Ref. 69278):  3.6   ±0.5 se; based on size and trophs of closest relatives
Widerstandsfähigkeit (Ref. 120179):  niedrig, Verdopplung der Population dauert 4,5 - 14 Jahre. (Preliminary K or Fecundity.).
Anfälligkeit der Fischerei (Ref. 59153):  Low to moderate vulnerability (34 of 100). 🛈