Actinopterygii (ray-finned fishes) > Stomiiformes
(Lightfishes and dragonfishes) > Sternoptychidae
(Marine hatchetfishes) > Sternoptychinae
Etymology: Sternoptyx: Greek, sternon = sternon, + Greek, ptyx = fold (Ref. 45335).
Environment / Climate / Range
Marine; bathypelagic; depth range 0 - 1500 m (Ref. 4462). Deep-water, preferred ?
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: Lm ?  range ? - ? cm
Max length : 6.0 cm SL male/unsexed; (Ref. 5168)
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.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 109396)
CITES (Ref. 94142)
Threat to humans
Fisheries: of no interest
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5625 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00677 - 0.04889), b=3.00 (2.77 - 3.23), 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. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming Fec<1000).
Vulnerability (Ref. 59153
): Low vulnerability (19 of 100) .