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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.
Environnement : milieu / zone climatique / profondeur / gamme de distribution
Écologie
marin bathypélagique; profondeur 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).
Taille / Poids / Âge
Maturité: Lm ?  range ? - ? cm
Max length : 9.6 cm SL mâle / non sexé; (Ref. 87971)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 3; Rayons mous dorsaux (Total) : 17 - 18; Épines anales: 1; Rayons mous anaux: 8. Head with sharp angle. Gill rakers are widely compressed, closely packed and with spaces (Ref. 37108).
Body shape (shape guide): fusiform / normal.
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.
Cycle de vie et comportement reproducteur
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2025-2 (Global))
Menace pour l'homme
Harmless
Utilisations par l'homme
Pêcheries: sans intérêt
Outils
Articles particuliers
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Sources Internet
Estimations basées sur des modèles
Indice de diversité phylogénétique (Réf. 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=0.01096 (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). |
Niveau trophique (Réf. 69278) |
3.6 ±0.2 se; based on size and trophs of closest relatives |
Résilience (Réf. 120179) |
Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Assuming tm=2-4). |
Vulnérabilité de la pêche (Ref. 59153) |
Moderate to high vulnerability (50 of 100). 🛈 |