Actinopterygii (ray-finned fishes) > Stephanoberyciformes
(Pricklefishes, bigscales and gibberfishes) > 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
Marine; brackish; bathypelagic; depth range 500 - 1000 m (Ref. 31511). Deep-water; 29°N - 48°S
North Atlantic: including 7 specimens recorded between about 18° and 29°N and 15° and 25°W. Northwest Atlantic: Canada (Ref. 5951). Southwest Pacific: New South Wales, Australia (Ref. 7300) and New Zealand (Ref. 5755).
Length at first maturity / Size / Weight / Age
Maturity: Lm ?, range 9 - 9.7 cm
Max length : 10.0 cm SL male/unsexed; (Ref. 6747)
soft rays: 17. Light brown body; unpigmented fins; mouth and branchial cavity light brown. Well-developed post temporal spine, directed antero-dorsally. About 20 transverse rows of scales (nape to caudal fin) (Ref. 31511). Head with obtuse angle in lateral margin (Ref. 37108).
Adults occur below 500 m (Ref. 6747).
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. 119314)
CITES (Ref. 115941)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): 6.3 - 9.8, mean 8.1 (based on 43 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01023 (0.00406 - 0.02581), b=3.04 (2.82 - 3.26), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.8 ±0.2 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (50 of 100) .