Argyropelecus hemigymnus Cocco, 1829

Half-naked hatchetfish

Catalog of Fishes (gen., sp.) | ITIS | CoL

Classification	Actinopterygii \| Stomiiformes \| Sternoptychidae \| Sternoptychinae
Synonyms	Argyripnus hemigymnus, Argyropelecus durvillei, Argyropelecus heathi, ... more
Common names	Halfnaked hatchetfish, Heath's hatchet fish, Axefish, ... more

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Image of Argyropelecus hemigymnus (Half-naked hatchetfish)

Picture by Patzner, R.

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This map was computer-generated and has not yet been reviewed.

AquaMaps Data sources: GBIF OBIS

Main reference

Gon, O. 1990. (Ref. 5168)
Other references | Biblio | Coordinator | Collaborators

Size / Weight / Age

Max length : 3.9 cm SL male/unsexed; (Ref. 4462); 3.9 cm SL (female); max. reported age: 1 years (Ref. 5168)

Environment

Bathypelagic; marine; depth range 0 - 2400 m (Ref. 74511), usually 250 - 600 m (Ref. 4054)

Climate / Range

Deep-water; 60°N - 56°S

Eastern Atlantic: north of British Isles to South Africa, including western Mediterranean. Western Atlantic: New Jersey, USA to Argentina (Ref. 26340). Northwest Atlantic: Canada (Ref. 5951). Eastern Pacific: throughout the California Current area, seaward of the continental shelf (Ref. 35838). Known from tropical and subtropical waters of all oceans (Ref. 47377). South China Sea (Ref.74511).
Countries | FAO areas | Ecosystems | Occurrences | Introductions

Short description

Dorsal spines (total): 0; Dorsal soft rays (total): 8 - 9; Anal spines: 0; Anal soft rays: 11 - 12; Vertebrae: 36 - 39. Body bright silvery in color; body and trunk with dusky coloration at night (Ref. 4054). Branchiostegal rays: 10 (Ref. 35838).

Oceanic (Ref. 4739) and mesopelagic, mainly at 250-650 m (Ref. 4054). Depth range from 100-700 m (Ref. 4462) and from 460-1082 m in the eastern Ionian Sea (Ref. 56504). Adults make marked vertical migrations (Ref. 4739). Found singly or in small groups (Ref. 4739). An opportunistic feeder at dusk on calanoid copepods, small fishes, etc (Ref. 4739). Sexual dimorphism with regard to body size (Ref. 5168), the males being slightly smaller than the females (Ref. 8966). Oviparous, with planktonic eggs and larvae (Ref. 35838). Occurs between 200 and 700 m depth during the day, concentrated between 350 and 550 m, and between 100 and 650 m at night, preferring a depth between 150 and 380 m Ref. 47377). Also Ref. 58302.


IUCN Red List Status (Ref. 57073)	Threat to humans
Not Evaluated	Harmless

Human uses
Fisheries: of no interest


More information
Countries FAO areas Ecosystems Occurrences Introductions Ecology Diet Food items Food consumption Ration	Common names Synonyms Metabolism Predators Ecotoxicology Reproduction Maturity Spawning Eggs Egg development	Age/Size Growth Length-weight Length-length Length-frequencies Morphometrics Morphology Larvae Larval dynamics Recruitment	Other references Biblio Aquaculture Aquaculture profile Strains Genetics Allele frequencies Heritability Diseases Processing	Collaborators Pictures Stamps Sounds Ciguatera Speed Swim. type Gill area Otoliths Brains Vision

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Internet sources

Estimation of some characteristics with mathematical models

Resilience (Ref. 69278)

High, minimum population doubling time less than 15 months (tm=1; tmax=1)


Vulnerability (Ref. 59153)	Price category (Ref. 80766)
Low vulnerability (13 of 100)	Not marketed/unknown

Entered by Jarre-Teichmann, Astrid

Modified by Ortañez, Auda Kareen

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Page last modified by : elaxamana, 15 July 2009

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