Actinopteri (ray-finned fishes) > 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
Marine; benthopelagic; depth range 200 - 500 m (Ref. 51657). Deep-water
Eastern Pacific: off Colombia.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 8.6 cm SL male/unsexed; (Ref. 46892)
Adults can be found at depths below 200 meters; juveniles taken at depth of 150 meters (Ref. 51657).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Moore, J. and J.R. Paxton, 1999. Melamphaidae. Bigscales, ridgeheads. p. 2201-2202. In K.E. Carpenter and V.H. Niem (eds.) FAO species identification guide for fishery purposes. The living marine resources of the WCP. Vol. 4. Bony fishes part 2 (Mugilidae to Carangidae). FAO, Rome. (Ref. 27556)
IUCN Red List Status (Ref. 125652)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 1.7 - 17.4, mean 12.1 °C (based on 119 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01000 (0.00402 - 0.02488), b=3.05 (2.83 - 3.27), in cm total length, based on LWR estimates for this Subfamily-BS (Ref. 93245
Trophic level (Ref. 69278
): 3.6 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Low, minimum population doubling time 4.5 - 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .