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Stomiiformes (Lightfishes and dragonfishes) >
Stomiidae (Barbeled dragonfishes) > Melanostomiinae
Etymology: Tactostoma: There is two interpretations; Greek, taktos, -e,-on = put in order + Greek, soma = body; or latin, tactus = touch, sense of touch + Greek, soma = body (Ref. 45335).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina batypelagisk; havsvandrande (Ref. 138310); djupintervall 30 - 2000 m (Ref. 28981). Deep-water; 66°N -
Northwest Pacific: Japan (Ref. 559); Kamchatka and Kuril Islands (Ref. 41668). Eastern Pacific: Bering Sea (Ref. 265) and the Gulf of Alaska to southern California, USA (Ref. 2850), southwards to central Baja California (Ref. 35904). Reported from Chile.
Längd vid första mognad / Storlek / Vikt / Ålder
Könsmognad: Lm ?, range 30 - ? cm
Max length : 34.3 cm TL hane/ej könsbestämd; (Ref. 4925)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 0; Mjukstrålar i ryggfenan (totalt) : 14 - 18; Taggstrålar i analfenan: 0; Mjukstrålar i analfenan: 19 - 22; Ryggkotor: 79 - 82. Jet black all over except for the dark gray on the posterior part of the lower jaw; when the thin epidermis is rubbed off, as is difficult to avoid, the dermis shows lead gray; young rich brown in color (Ref. 6885).
Body shape (shape guide): eel-like.
Mesopelagic migrating into epipelagic at night (Ref. 35904). Oviparous, with planktonic eggs and larvae (Ref. 35904).
Eschmeyer, W.N., E.S. Herald and H. Hammann, 1983. A field guide to Pacific coast fishes of North America. Boston (MA, USA): Houghton Mifflin Company. xii+336 p. (Ref. 2850)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
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Harmless
Mänskliga användningsområden
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Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 1.0000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.00093 (0.00035 - 0.00247), b=3.06 (2.83 - 3.29), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
4.2 ±0.0 se; based on diet studies. |
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Generation time |
3.3 ( na - na) years. Estimated as median ln(3)/K based on 1 growth studies. |
Resiliens (Ref. 120179) |
Mellan, lägsta populationsfördubblingstid 1,4-4,4 år (K=0.3). |
Sårbarhet i fisket (Ref. 59153) |
Low to moderate vulnerability (33 of 100). 🛈 |