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Sternoptyx diaphana  Hermann, 1781

Diaphanous hatchet fish
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Sternoptyx diaphana   AquaMaps   Data sources: GBIF OBIS
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Image of Sternoptyx diaphana (Diaphanous hatchet fish)
Sternoptyx diaphana
Picture by Orlov, A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

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 Ecology

Marine; bathypelagic; oceanodromous (Ref. 51243); depth range 400 - 3676 m (Ref. 26165), usually 500 - 800 m (Ref. 47377).   Deep-water, preferred ?; 52°N -

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

Atlantic, Indian and Pacific: mainly tropical regions (Ref. 47377). Eastern Atlantic: scattered records southwest of Ireland, also from Spain south to Angola. South China Sea and East China Sea (Ref.74511).

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 5.5 cm SL male/unsexed; (Ref. 47377)

Short description Morphology | Morphometrics

Dorsal spines (total): 0; Dorsal soft rays (total): 9-11; Anal spines: 0; Anal soft rays: 12 - 16. Triangular transparent membrane present above anal fin base (Ref. 13608).

Biology     Glossary (e.g. epibenthic)

Oceanic and non-vertical migrant (Ref. 4739). Mesopelagic at 275-1200 m (Ref. 58302). Commonly found in 500-800 m both day and night (Ref. 4054). Possibly a cyclic feeder of copepods, ostracods, euphausiids, amphipods, fishes and other taxa (Ref. 4739). Adult photophore complement acquired at 11-13 mm SL (Ref. 4739). Lipid content 1.4 % in fresh body weight and wax ester is 4.2 % in total lipids (Ref. 9193).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Quéro, J.-C., J.C. Njock and M.M. de la Hoz, 1990. Sternoptychidae. p. 275-282. 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. 4462)

IUCN Red List Status (Ref. 115185)

  Least Concern (LC) 

CITES (Ref. 94142)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: of no interest
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Internet sources

BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | ECOTOX | Faunafri | Fishes of Iran | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.5625   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01820 (0.00674 - 0.04911), b=3.00 (2.76 - 3.24), 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 diet studies.
Resilience (Ref. 69278):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tmax>3).
Vulnerability (Ref. 59153):  Low vulnerability (16 of 100) .