Classification / Names
Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa
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; bathypelagic; depth range 290 - 1548 m (Ref. 51657). Deep-water; 32°N - 5°S
Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri
Western Central Atlantic.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 13.7 cm SL male/unsexed; (Ref. 90261)
Morphology | Morphometrics
soft rays: 8. This species is distinguished by the following characters: first gill arch with 19-21 rakers; vertebrae 26-27, including 11 abdominal ones; haemal arch of first caudal vertebra without a spine ('spur'); D III,14-16; A I,8; P 15; ventral fin I,8; ventral fin begins slightly anteriorly or beneath vertical of the posterior margin of pectoral fin insertion; anal fin begins beyond vertical of last ray of dorsal fin (Ref. 90261).
Juvenile fish of this species were reported to be seined with closing fishing gear at depths of 290-1060 m, while adults were seined at depths of 1483-1548 m. It was suggested that unlike adults, juveniles perform vertical migrations (Ref. 90261).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Kotlyar, A.N., 2012. Revision of genus Melamphaes (Melamphaidae): Part 4. Multi-raker species: M. ebelingi, M. occlusus sp. nova, and M. nikolayi sp. nova. Vopr. Ikhtiol. 52 (3):279-287. J. Ichthyol. 52(4):247-254. (Ref. 90261)
IUCN Red List Status (Ref. 125652)
Threat to humans
CountriesFAO areasEcosystemsOccurrencesIntroductionsStocksEcologyDietFood itemsFood consumptionRation
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningSpawning aggregationFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): 2.1 - 2.5, mean 2.3 °C (based on 590 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
): 3.7 ±0.2 se; based on size and trophs of closest relatives
Resilience (Ref. 120179
): Very Low, minimum population doubling time more than 14 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153
): Low vulnerability (10 of 100) .
Climate Vulnerability (Ref. 125649
): (0 of 100) .