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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Melamphaes: Greek, melan, -anos = black + Greek, amphi = both side (Ref. 45335).
Eponymy: The succession of Danish research vessels named ‘Dana’ seem to have been greatly favoured by describers of fish, and often the etymology includes: “…from which the holotype was collected. [...] (Ref. 128868), visit book page.
Ambiente: milieu / zona climatica / distribuzione batimetrica / gamma di distribuzione
Ecologia
marino batipelagico; distribuzione batimetrica 75 - 1275 m (Ref. 58302), usually 125 - 150 m (Ref. 51657). Deep-water; 30°N - 30°S, 48°E - 112°W (Ref. 117122)
Indo-Pacific:
Dimensione / Peso / Età
Maturità: Lm ?  range ? - ? cm
Max length : 2.3 cm SL maschio/sesso non determinato; (Ref. 117122)
Breve descrizione
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 3; Raggi dorsali molli (totale) : 14 - 16; Spine anali: 1; Raggi anali molli: 8 - 9; Vertebre: 26 - 27. This species is distinguished by the following characters: gill rakers on first gill arch 15-18; width of suborbital bone is substantially larger than eye diameter; vertebrae 26-27, including 11 (rarely 12) abdominal vertebrae; spurs on haemal arch of first caudal vertebra; D III,14-16; A I,8-9, soft rays in pelvic fin 7; pelvic fin origin under vertical (or behind of the vertical) through posterior edge of pectoral fin base; anal fin origin under second to fifth rays of dorsal fin (from end of fin); no black dotted pigmented spots on head, body, and fins (Ref. 117122).
Body shape (shape guide): fusiform / normal; Cross section: compressed.
Trawled at depths greater than 125 meters (Ref. 4241).
Ciclo vitale e comportamento di accoppiamento
Maturità | Riproduzione | Deposizione | Uova | Fecondità | Larve
Ebeling, A.W., 1986. Melamphaidae. p. 427-432. In M.M. Smith and P.C. Heemstra (eds.) Smiths' sea fishes. Springer-Verlag, Berlin. (Ref. 4241)
Stato della Lista Rossa IUCN (Ref. 130435: Version 2025-2 (Global))
Minaccia per l'uomo
Harmless
Usi umani
Pesca: di nessun interesse
Strumenti
Rapporti speciali
Scarica XML
Fonti Internet
Stime basate su modelli
Indice di diversità filogenetica (Fonte Biblio. 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). |
Livello trofico (Fonte Biblio. 69278) |
3.2 ±0.38 se; based on food items. |
Resilienza (Fonte Biblio. 120179) |
Alto, tempo minimo di raddoppiamento della popolazione meno di 15 mesi (Preliminary K or Fecundity.). |
Vulnerabilità della pesca (Ref. 59153) |
Low to moderate vulnerability (25 of 100). 🛈 |