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Teleostei (teleosts) > Stomiiformes (Lightfishes and dragonfishes) > Sternoptychidae (Marine hatchetfishes) > Sternoptychinae
Etymology: Sternoptyx: Greek, sternon = sternon, + Greek, ptyx = fold (Ref. 45335).

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

Marine; bathypelagic; depth range 0 - 1500 m (Ref. 4462). Deep-water

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Circumglobal in subtropical and temperate waters of the southern hemisphere. Another (possibly disjunct) population found in the tropical northeast Atlantic. A few specimens from the sub-Antarctic waters of the Pacific Ocean.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 5168)

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Dorsal spines (total): 0; Dorsal soft rays (total): 9 - 13; Anal spines: 0; Anal soft rays: 12 - 13. Adults with pigment streaks on ventral caudal rays (Ref. 4054).

Mesopelagic species (Ref. 75154). Life history stages apparently stratified vertically, depth of occurrence increasing with age. No marked vertical migration (Ref. 5168). Minimum depth from Ref. 58018.

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Main reference Upload your references | References | Coordinator | Collaborators

Gon, O., 1990. Sternoptychidae. p. 123-126. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5168)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 09 February 2015

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: of no interest

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Estimates based on models

Preferred temperature (Ref. 123201): 6.6 - 15.5, mean 10.1 °C (based on 302 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.02239 (0.01007 - 0.04976), b=2.98 (2.79 - 3.17), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.4 ±0.2 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec<1000).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

Sternoptyx pseudodiaphana Borodulina, 1977