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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
Écologie
marin bathypélagique; profondeur 200 - 2250 m (Ref. 51657). Deep-water; 34°N - 31°S
Circumtropical in North Atlantic (3°56'N, 12°33'W and 10°21'N, 17°59'W in the eastern Atlantic). Indo-Pacific: including Japan (Ref. 599) and New Zealand (Ref. 5755). Southeast Pacific: Chile (Ref. 9068).
Taille / Poids / Âge
Maturity: Lm ? range ? - ? cm
Max length : 7.9 cm SL mâle / non sexé; (Ref. 126117); poids max. publié: 11.10 g (Ref. 126117)
Description synthétique
Clés d'identification | Morphologie | Morphométrie
Épines dorsales (Total) : 3; Rayons mous dorsaux (Total) : 13 - 15; Épines anales: 1; Rayons mous anaux: 7 - 8. The species is characterized by the following: first gill arch with 20-22 rakers; vertebrae 29 (28-30 reported by Ebeling, 1962), abdominal vertebrae 11 (rarely, 12); two ventrolateral-oriented spurs on the haemal arch of the first caudal vertebra; D III 14-15 (rarely, III 13); P 15; soft rays in the ventral fin 7; ventral fin starts after the vertical line of the posterior margin of the pectoral fin basement (rarely, from this vertical line); anal fin starts under the last ray of the dorsal fin or just after the dorsal fin; operculum with 4 scales (Ref. 87970).
This species is caught by open-mouth nets at 4228-0 m, with original sampling done by closing-mouth nets at 1000 m (Ref. 87970).
Life cycle and mating behavior
Maturité | Reproduction | Frai | Œufs | Fécondité | Larves
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)
Statut dans la liste rouge de l'IUCN (Ref. 130435: Version 2024-2)
Menace pour l'homme
Harmless
Utilisations par l'homme
Outils
Articles particuliers
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Sources Internet
Estimates based on models
Preferred temperature (Ref.
123201): 3.4 - 10.6, mean 6.4 °C (based on 1720 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01202 (0.00648 - 0.02231), b=3.09 (2.92 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Niveau trophique (Ref.
69278): 3.5 ±0.2 se; based on size and trophs of closest relatives
Résilience (Ref.
120179): Milieu, temps minimum de doublement de population : 1,4 à 4,4 années (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
