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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Pachystomias: Greek, pachys = fat + Greek, stoma = mouth (Ref. 45335).
More on author: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecologie
marien bathypelagisch; diepte 660 - 4000 m (Ref. 74511). Deep-water; 50°N - 37°S, 65°W - 154°W
Eastern Atlantic: scattered records from 50°N-31°N, then between 16°N-18°S and from 28°S-37°S but not taken close to the continent south of the equator. Western Atlantic: scattered records from 40°N-13°N. Also known from the Indian and Pacific oceans. South China Sea (Ref.74511).
Grootte / Gewicht / Leeftijd
Maturity: Lm ?  range ? - ? cm
Max length : 22.1 cm SL mannelijk / geslacht onbekend; (Ref. 4468)
Korte beschrijving
Determinatiesleutels | Morfologie | Morfometrie
Dorsale stekels (totaal) : 0; Dorsale zachte stralen (totaal) : 20 - 24; Anale stekels: 0; Anale zachte stralen: 23 - 28. Body moderately elongated, slightly compressed. Snout shorter than eye. Jaws slender, gape slightly curved upward. Barbel slender, tapering without a bulb. Velvety dark brown to black (Ref. 37473).
Levenscyclus en paargedrag
Maturities | Voortplanting | Spawnings | Egg(s) | Fecundities | Larven
Gibbs, R.H. and M.A. Barnett, 1990. Melanostomiidae. p. 308-337. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 1. (Ref. 4468)
Status op de Rode Lijst van het IUCN (Ref. 130435)
Gevaar voor de mens
Harmless
Gebruik door de mens
Tools
Speciale rapporten
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Internetbronnen
Estimates based on models
Preferred temperature (Ref.
123201): 2.3 - 5.4, mean 3.3 °C (based on 2272 cells).
Fylogenetische diversiteitsindex (Ref.
82804): PD
50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisch niveau (Ref.
69278): 4.2 ±0.73 se; based on food items.
Weerstandsvermogen (Ref.
120179): Gemiddeld, minimale populatieverdubbelingstijd 1,4-4,4 jaar (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (17 of 100).