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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Melamphaes: Greek, melan, -anos = black + Greek, amphi = both side (Ref. 45335).
More on author: Gilbert.
Environment: milieu / climate zone / depth range / distribution range
Ökologie
seewasser bathypelagisch; tiefenbereich 50 - 3400 m (Ref. 50550), usually 200 - 500 m (Ref. 36655). Deep-water; 60°N - 27°N, 135°E - 114°W
North Pacific: Japan (Ref. 559); Gulf of Alaska to northern Baja California, Mexico.
Size / Gewicht / Alter
Maturity: Lm ?  range ? - ? cm
Max length : 8.5 cm SL Männchen/unbestimmt; (Ref. 28981)
Kurzbeschreibung
Bestimmungsschlüssel | Morphologie | Morphometrie
Rückenflossenstacheln (insgesamt) : 3; Rückenflossenweichstrahlen (insgesamt) : 14 - 16; Afterflossenstacheln: 1; Afterflossenweichstrahlen: 7 - 9; Wirbelzahl: 28 - 31. Pectorals long and slender, reaching beyond anus but not as long as head (Ref. 6885). Dark brown or black in color; black on throat and branchiostegals (8-8) (Ref. 6885).
In the sub-arctic region, young may be found at depths between 50-300 m while older individuals occur at depths between 200-500 m (Ref. 6885). Further south, in the transition zone, young are found from 200-300 m and older individuals between 200-500 m (Ref. 6885). Oviparous, with planktonic larvae and eggs (Ref. 36655).
Life cycle and mating behavior
Maturities | Fortpflanzung | Spawnings | Egg(s) | Fecundities | Larven
Hart, J.L., 1973. Pacific fishes of Canada. Bull. Fish. Res. Board Can. 180:740 p. (Ref. 6885)
IUCN Rote Liste Status (Ref. 130435)
Bedrohung für Menschen
Harmless
Nutzung durch Menschen
Tools
Zusatzinformationen
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Internet Quellen
Estimates based on models
Preferred temperature (Ref.
123201): 1.1 - 7, mean 3.7 °C (based on 133 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).
Trophic level (Ref.
69278): 3.6 ±0.2 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.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).