Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Stomiidae
(Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335).
Environment / Climate / Range
Marine; pelagic-oceanic; depth range 20 - ? m (Ref. 58018). Deep-water, preferred ?; 52°N - 34°S, 98°W - 154°W
Atlantic Ocean: roughly between 35°N and 27°S. Eastern Central Pacific: near Hawaii and just south of the equator. Western Central Pacific: several stations north of the equator. Also known from the Western Indian Ocean.
Length at first maturity / Size / Weight / Age
Maturity: Lm 11.0, range 10 - 11.7 cm
Max length : 19.3 cm SL male/unsexed; (Ref. 4468)
Morphology | Morphometrics
Barbel with a single-based branch arising from stem; a pair of bifurcate lateral branches arising from medial branch well distal to its origin; medial branch prominent and extending well beyond origin of laterals, with a small bulblet at distal end; terminal bulb with both medial and laterally paired, relatively simple terminal filaments, their lengths less than 50% of distal barbel.
Mesopelagic (Ref. 27000). Also Ref. 58302.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Gibbs, R.H. and M.A. Barnett, 1990. Melanostomiidae. p. 308-337. 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. 1. (Ref. 4468)
IUCN Red List Status (Ref. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00389 (0.00180 - 0.00842), b=3.12 (2.94 - 3.30), based on all LWR estimates for this body shape (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.73 se; Based on food items.
Resilience (Ref. 69278
): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (30 of 100) .