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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Melamphaes: Greek, melan, -anos = black + Greek, amphi = both side (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina batypelagisk; djupintervall 0 - 1500 m (Ref. 559), usually 0 - 150 m (Ref. 37108). Deep-water
Atlantic and Pacific: in tropical waters.
Length at first maturity / Size / Vikt / Age
Maturity: Lm 9.1, range 8 - 10.6 cm
Max length : 10.6 cm SL hane/ej könsbestämd; (Ref. 4502)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 15 - 18; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 8 - 9. Head with sharp angle in frontal margin (Ref. 37108).
Uncommon species (Ref. 4241). Trawled at depths greater than 500 m (Ref. 4241).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Maul, G.E., 1990. Melamphaidae. p. 612-618. 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. 2. (Ref. 4502)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Fiskeri: saknar intresse
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 12.8 - 28.4, mean 24.4 °C (based on 4902 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01096 (0.00451 - 0.02668), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.6 ±0.2 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).