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); formosanus: Named for Formosa, historic name of Taiwan due to its restricted distribution off Taiwan..
Environment: milieu / climate zone / depth range / distribution range
Ekologi
marina batypelagisk; djupintervall 318 - 1129 m (Ref. 75891). Temperate
Utbredning
Länder | FAO områden | Ekosystem | Förekomster | Point map | Utplanteringar | Faunafri
Northwest Pacific: Taiwan.
Size / Vikt / Age
Maturity: Lm ?  range ? - ? cm
Max length : 9.5 cm SL hane/ej könsbestämd; (Ref. 75891)
Short description
Bestämningsnycklar | Morfologi | Morfometri
Mjukstrålar i ryggfenan (totalt) : 17 - 20; Mjukstrålar i analfenan: 13 - 15; Ryggkotor: 46 - 48. This species is characterized by having the IP photophores curved rather than linear; presence of a luminous tissue prominent on gill cover between preopercle and opercle in larger specimens (SL > 50 mm), lower part more prominent than upper; posterior part of lower jaw with a pair of prominent irregular luminous tissues; moor luminous head, jaws, dorsum, and body; chin barbel long, about 0.2-0.8 times head length, increasing with fish size; terminal end of barbel slightly swollen, apical tip rounded (Ref. 75891).
Life cycle and mating behavior
Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver
Liao, Y.-C., L.-S. Chen and K.-T. Shao, 2006. Review of the Astronesthid fishes (Stomiiformes: Stomiidae: Astronesthinae) from Taiwan with a description of one new species. Zool. Stud. 45(4):517-528. (Ref. 75891)
IUCN Red List Status (Ref. 130435)
Threat to humans
Harmless
Human uses
Verktyg
Special reports
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Estimates based on models
Preferred temperature (Ref.
123201): 6.5 - 11.6, mean 8.3 °C (based on 47 cells).
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 (2.83 - 3.27), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trofisk nivå (Ref.
69278): 3.7 ±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).