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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).
Eponymy: Sir John Richardson (1787–1865) was a Scottish naval surgeon, naturalist and Arctic explorer. [...] (Ref. 128868), visit book page.
More on author: Poey.
Environment: milieu / climate zone / depth range / distribution range
بوم شناسي
دريايي ناحیه ای از منطقه اقیانوسی با عمق بین 1000 تا 4000 متر. موجوداتی که در آبهای آزاد بین اعماق 1000 تا 4000 متر زندگی و تغذیه می کنند; اقیانوس رو (Ref. 51243); تغييرات عمق 275 - 1000 m (Ref. 58426). Deep-water; 62°N - 18°S, 98°W - 14°E
Eastern Atlantic: Mauritania south to Angola; reported from central Namibia (Ref. 27121). Western Atlantic: Gulf of Mexico and Bahamas area; and across the Atlantic (20°N-10°S). One specimen known from the southwest Atlantic (25°27'S, 35°56'W).
Size / Weight / سن
Maturity: Lm ? range ? - ? cm
Max length : 17.2 cm SL جنس نر / بدون خواص جنسي; (Ref. 126117); بيشينه وزن گزارش شده: 32.90 g (Ref. 126117)
شعاع نرم باله پشتي (کل) : 15 - 17; شعاع نرم باله مخرجي: 12 - 15. Barbel without pigment, tapering to end, lacking swelling or bulb (Ref. 37473). Body moderately elongate and slender. Maxillary teeth closely spaced. Serial photophores not broken into small groups. Luminous patches present on margin of operculum. Black in color (Ref. 37039).
Oceanic, usually living deeper than 500 m during the day. Smaller individuals migrate to the surface at night. Possibly feeding on crustaceans and fishes (Ref. 58426). Minimum depth from Ref. 58018.
Life cycle and mating behavior
بلوغ | تولید مثل | تخم ریزی | تخم ها | Fecundity | توزاد ( لارو)
Gibbs, R.H. Jr., 1990. Astronesthidae. p. 300-307. 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. 4465)
وضعيت در فهرست قرمز IUCN (Ref. 130435: Version 2024-1)
خطر برای انسان ها
Harmless
استفاده انسانی
ابزارها
گزارش های ويژه
بارگيری XML
منابع اينترنتي
Estimates based on models
Preferred temperature (Ref.
123201): 7.1 - 9.4, mean 8.6 °C (based on 35 cells).
Phylogenetic diversity index (Ref.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00437 (0.00216 - 0.00883), b=3.07 (2.88 - 3.26), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref.
93245).
Trophic level (Ref.
69278): 3.9 ±0.64 se; based on food items.
جهندگی (Ref.
120179): متوسط, كمينه زمان لازم براي دو برابر شدن جمعيت 4/1 – 4/4 سال (Assuming tmax>3).
Fishing Vulnerability (Ref.
59153): Low vulnerability (11 of 100).
![Image of Astronesthes richardsoni (Richardson\](/images/thumbnails/gif/tn_Asric_u0.gif "Image of Astronesthes richardsoni (Richardson\")
