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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Eustomias: Greek, eu = good + Greek, stoma = mouth (Ref. 45335); problematicus: Named in reference to the initial enigma posed by its short branches (Ref. 45801).

Environment: milieu / climate zone / depth range / distribution range Ecology

Marine; bathypelagic; depth range 0 - 800 m (Ref. 45801). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Eastern Central Pacific: near Hawaii and from one station about 5 degrees south of Hawaii.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 13.8 cm SL (female)

Short description Identification keys | Morphology | Morphometrics

Barbel with three small unpigmented branches arising from stem; medial branch length less than 20% of distal barbel; lateral branch lengths less than 50% of distal barbel; distal tip of terminal bulb with two prominent medially based filaments each with numerous small, short side filaments; a similar, shorter filament and several simple filaments ventral to these (Ref. 45801).

Epi- and mesopelagic (Ref. 58302).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Clarke, T.A., 2001. Pelagic fishes of the genus Eustomias, subgenus Dinematochirus (Stomiidae), in the Indo-Pacific with the description of twelve new speices. Copeia 2001(3):683-699. (Ref. 45801)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; Date assessed: 13 August 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Estimates based on models

Preferred temperature (Ref. 123201): 5.6 - 14.1, mean 7.8 °C (based on 4 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00302 (0.00117 - 0.00783), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 4.2 ±0.8 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 vulnerability (10 of 100).

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Eustomias problematicus Clarke, 2001