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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: Günther.
Environment: milieu / climate zone / depth range / distribution range
Ecologia
marino batipelagico; distribuzione batimetrica 300 - 2516 m (Ref. 4241). Deep-water; 60°N - 47°S
Antitropical. South Atlantic: between 27°S and 46°S (off southwest tip of Africa); southern Indian Ocean, western south Pacific off New Zealand, eastern south Pacific (Ref. 51657). The holotype was caught in the sub-Antarctic Indian Ocean east of the Kara Dag Seamount. Northwest Atlantic: Canada (Ref. 5951). North Atlantic (between 30°N and 60°N) specimens are probable variants of M. falsidicus (Ref. 87970).
Size / Peso / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.6 cm SL maschio/sesso non determinato; (Ref. 87971)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 3; Raggi dorsali molli (totale) : 17 - 18; Spine anali: 1; Raggi anali molli: 8. Head with sharp angle. Gill rakers are widely compressed, closely packed and with spaces (Ref. 37108).
Rare species. May be a species complex (J.A. Moore, pers. Comm.). Trawled below 300 m off South Africa and New Zealand (Ref. 4241). Maximum depth from Ref. 58018.
Life cycle and mating behavior
Maturities | Riproduzione | Spawnings | Egg(s) | Fecundities | Larve
Gon, O., 1990. Melamphaidae. p. 218-221. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5189)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Pesca: di nessun interesse
Strumenti
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 2.3 - 5.9, mean 4.4 °C (based on 57 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
Resilienza (Ref.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Assuming tm=2-4).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).