Klassifizierung / Names
Namen | Synonyme | Catalog of Fishes(Gattung, Arten) | ITIS | CoL | WoRMS | Cloffa
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Gadiformes (Cods) >
Macrouridae (Grenadiers or rattails)
Etymology: Hymenocephalus: Named for its transparent membrane-like head covering (‘‘hymen head’’) and fragile nature of head bones (Ref. 100825).
More on authors: Gilbert & Cramer.
Umwelt: Milieu / Klimazone / Tiefenbereich / Verbreitungsgebiet
Ökologie
seewasser benthopelagisch; tiefenbereich 450 - 799 m (Ref. 58302). Deep-water
Eastern Central Pacific: Hawaiian Islands.
Größe / Gewicht / Alter
Geschlechtsreife: Lm ?  range ? - ? cm
Max length : 16.5 cm TL Männchen/unbestimmt; (Ref. 31667)
This species is distinguished by the following characters: pelvic fin rays 11-12 (usually 12); pectoral fin rays 13-15 (seldom 16); short projecting snout, 15-18% HL; short barbel, 3-4% HL, large orbit diameter, 35-40% HL; infraorbital width 8-10% HL; moderately long preopercular supporter, with obtuse angle at rear margin, 5-7% HL; 21-24 gill rakers; ventral striae reaching to ½ distance from pelvic fin bases to periproct; otolith has high predorsal lobe, with colliculi separated, closely placed across collum, with occasional tendency to partly join, terminating at some distance from anterior and posterior rims of otolith; otolith length to height (OL:OH), 0.95-1.1; total colliculum length to pseudocolliculum length (TCL:PCL), 1.6-1.7 (Ref. 98298).
Cross section: compressed.
Benthopelagic (Ref. 58302).
Lebenszyklus und Paarungsverhalten
Geschlechtsreife | Fortpflanzung | Ablaichen | Eier | Fruchtbarkeit | Larven
Sazonov, Y.I. and T. Iwamoto, 1992. Grenadiers (Pisces, Gadiformes) of the Nazca and Sala y Gomez ridges, southeastern Pacific. Proc. Calif. Acad. Sci. 48(2):27-95. (Ref. 9949)
IUCN Rote Liste Status (Ref. 130435: Version 2025-2 (Global))
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Schätzungen auf der Grundlage von Modellen
Phylogenetischer Diversitätsindex (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00219 (0.00112 - 0.00429), b=3.20 (3.03 - 3.37), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trophische Ebene (Ref. 69278) |
3.3 ±0.4 se; based on size and trophs of closest relatives |
Widerstandsfähigkeit (Ref. 120179) |
mittel, Verdopplung der Population dauert 1,4 - 4,4 Jahre. (Preliminary K or Fecundity.). |
Anfälligkeit der Fischerei (Ref. 59153) |
Low to moderate vulnerability (32 of 100). 🛈 |