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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Melamphaes: Greek, melan, -anos = black + Greek, amphi = both side (Ref. 45335); falsidicus: The species name, falsidicus (falsifying), indicates the mistakes in the species definition,
when it was identified as M. microps (Ref. 87970).
Miljö: miljö / Klimatzon / djupintervall / distributionsområde
Ekologi
marina batypelagisk. Deep-water; 58°N - 34°N, 34°W - 57°W
Northern Atlantic: Canada in the northeastern slope of Grand Bank and Reykjanes Ridge, Humpback Bank.
Storlek / Vikt / Ålder
Könsmognad: Lm ?  range ? - ? cm
Max length : 8.7 cm SL hane/ej könsbestämd; (Ref. 87970)
Kort beskrivning
Bestämningsnycklar | Morfologi | Morfometri
Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 15 - 16; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 7 - 8; Ryggkotor: 29. The species is characterized by the following: rakers on the first gill arch 21-23; abdominal vertebrae 11, total vertebrae 29, haemal arch of the first caudal vertebra with 2 ventrolateral oriented spurs; D III 15-16; P 14-155; seven soft rays in the ventral fin; ventral fin starts under the vertical line of the posterior margin of the pectoral fin basement or from this vertical line); anal fin starts under the last ray of the dorsal fin (Ref. 87970).
Body shape (shape guide): fusiform / normal.
Specimens of this species were sampled by open-mouth nets at 2500-0 m depth range and by bottom trawls at 700-790 m (Ref. 87970).
Livscykel och parningsbeteende
Könsmognad | Reproduktion | Lek | Ägg | Fekunditet | Larver
Kotlyar, A.N., 2011. Revision of genus Melamphaes (Melamphaidae). II. Multi-raker species: M. polylepis, M. falsidicus sp. nova, M. pachystomus sp. nova, M. macrocephalus, M. leprus. J. Ichthyol. 51(8):658-661. (Ref. 87970)
Status på IUCN:s rödlista (Ref. 130435: Version 2025-2 (Global))
Hot mot människor
Harmless
Mänskliga användningsområden
Fiskeri: bycatch
Verktyg
Särskilda rapporter
Ladda ner XML
Internet-källor
Uppskattningar baserade på modeller
Index för fylogenetisk mångfald (Ref. 82804) |
PD50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high]. |
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Bayesian length-weight
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a=0.01096 (0.00451 - 0.02668), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245). |
Trofisk nivå (Ref. 69278) |
3.6 ±0.2 se; based on size and trophs of closest relatives |
Resiliens (Ref. 120179) |
Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.). |
Sårbarhet i fisket (Ref. 59153) |
Moderate to high vulnerability (46 of 100). 🛈 |