Classification / Names
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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Astronesthinae
Etymology: Astronesthes: Greek, astra = ray + Greek, esthes, -es = suit, something used to wrap (Ref. 45335); zharovi: Named after V.L. Zharov, one of the first national investigators of the epipelagial of the World Ocean (Ref. 30704).
Eponymy: Dr Viktor L Zharov (1932–1998) was a Russian ichthyologist at the Atlantic Research Institute of Marine Fisheries and Oceanography, Kaliningrad, and a specialist in scombroid fishes. [...] (Ref. 128868), visit book page.
Environment: milieu / climate zone / djupintervall / distribution range
Ekologi
marina batypelagisk; djupintervall ? - 600 m (Ref. 58018). Deep-water; 27°N - 17°S
Atlantic Ocean: known only between the eastern part of the Gulf of Mexico (27°N, 86°W) and southern Angola (17°S, 10°E).
Size / Vikt / Age
Könsmognad: Lm ? range ? - ? cm
Max length : 11.0 cm SL (female)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 12 - 13; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 11 - 13; Ryggkotor: 45 - 46. Chin barbel half as long as the head and bears a small explanate bulb lacking appendages. Base of anal fin significantly behind the vertical of the dorsal fin end. Postorbital organ large and angled at 20°-30° with respect to the longitudinal body axis. It extends behind the vertical of the back side of the orbit and is covered from above with a pigmented fold of skin. Bunch-like aggregation of luminous spots proceeds down and to the rear from the back tip of the postorbital organ. Numerous spots of luminous tissue on head, the gill cover, back of the head, around the chin area, on the jaws, as well as on the front side of the body, behind the head, and above and below the lateral row of photophores. Serial photophores are not large and form no clear bends or steps (Ref. 30704).
Body shape (shape guide): elongated.
Life cycle and mating behavior
Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver
Parin, N.V. and O.D. Borodulina, 1998. A new mesopelagic fish Astronesthes zharovi (Astronesthidae, Stomiiformes) from tropical Atlantic. J. Ichthyol. 38(8):669-672. (Ref. 30704)
IUCN Red List Status (Ref. 130435: Version 2025-1)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00417 (0.00171 - 0.01014), b=3.05 (2.84 - 3.26), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.8 ±0.6 se; based on size and trophs of closest relatives
Resiliens (Ref.
120179): Hög, lägsta populationsfördubblingstid mindre än 15 månader (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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