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> Stomiiformes (Lightfishes and dragonfishes) > Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Photonectes: Greek, photos = light + Greek, nekton = swimmer (Ref. 45335).
Eponymy: These are not eponyms but relate to the meanings of ‘margarita’; pearl and daisy. The dragonfish was so-named due to having a “pearl-colored spot above the maxilla”. (Ref. 128868), visit book page.
More on authors: Goode & Bean.

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

marina batypelagisk; djupintervall 700 - 5087 m (Ref. 58018). Deep-water; 40°N - 29°S, 98°W - 150°E

Utbredning Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri

Circumglobal.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 39.6 cm SL hane/ej könsbestämd; (Ref. 4468)

Short description Bestämningsnycklar | Morfologi | Morfometri

Mjukstrålar i ryggfenan (totalt) : 16 - 18; Mjukstrålar i analfenan: 19 - 25; Ryggkotor: 60 - 63. This species of the subgenus Trachinostomias is distinguished by the following characters: vertebrae 60-63 (as an exception, can be reduced to 58); photophores of series IV, 41-45; jaws with uniformly sized teeth; pectoral fin, usually 1 ray P (as an exception, 0 or 2); body with spots of white luminous tissue; mental barbel with a small bulb or even without it, but always with the developed appendages (Ref. 125184).

Mesopelagic species (Ref. 559).

Life cycle and mating behavior Könsmognad | Reproduktion | Lek | Ägg | Fecundity | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Prokofiev, A.M., 2015. Data for the revision of subgenus Trachinostomias (Melanostomiidae: Photonectes). Morphological variability of P. margarita with description of two new species. J. Ichthyol. 55(2):147-154. (Ref. 125184)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Least Concern (LC) ; Date assessed: 13 May 2013

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

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Ytterligare information

Trophic ecology
Födoslag
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Ecology
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Population dynamics
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Genetics
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Estimates based on models

Preferred temperature (Ref. 123201): 2 - 4.6, mean 3 °C (based on 2643 cells).

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.00302 (0.00116 - 0.00786), b=3.12 (2.89 - 3.35), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trofisk nivå (Ref. 69278): 4.0 ±0.70 se; based on food items.

Resiliens (Ref. 120179): Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Moderate vulnerability (38 of 100).

Photonectes margarita (Goode & Bean, 1896)