Teleostei (teleosts) >
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
Ecology
Marine; bathypelagic; depth range 50 - 400 m (Ref. 51657), usually 300 - 400 m (Ref. 37108). Deep-water; 40°N - 10°N
Western Atlantic: between 40° and 10°N. Eastern Atlantic: west of 25° or 30°W and one specimen at 24°34'N, 28°04'W.
Length at first maturity / Size / Weight / Age
Maturity: Lm 2.0, range 2 - 2.25 cm
Max length : 2.3 cm SL male/unsexed; (Ref. 4502)
Short description
Identification keys | Morphology | Morphometrics
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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: Version 2025-2 (Global))
Threat to humans
Harmless
Human uses
Fisheries: of no interest
Tools
Special reports
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Internet sources
Estimates based on models
Phylogenetic diversity index (Ref. 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). |
Trophic level (Ref. 69278) |
3.1 ±0.2 se; based on size and trophs of closest relatives |
Resilience (Ref. 120179) |
High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.). |
Fishing Vulnerability (Ref. 59153) |
Low to moderate vulnerability (25 of 100). 🛈 |