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Beryciformes (Sawbellies) >
Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Poromitra: Greek, poros = porous + Greek, mitra = stripe, belt (Ref. 45335).
More on author: Lütken.
Environment: milieu / climate zone / distribuzione batimetrica / distribution range
Ecologia
marino batipelagico; distribuzione batimetrica 150 - 1000 m (Ref. 36655). Deep-water
Atlantic Ocean.
Length at first maturity / Size / Peso / Age
Maturità: Lm 5.3, range 5 - 6.2 cm
Max length : 6.4 cm SL maschio/sesso non determinato; (Ref. 5951)
Short description
Chiavi di identificazione | Morfologia | Morfometria
Spine dorsali (totale) : 2 - 3; Raggi dorsali molli (totale) : 10 - 12; Spine anali: 1; Raggi anali molli: 9 - 10; Vertebre: 27 - 30. Branchiostegal rays: 8 (Ref. 36655). Large eye, measures more than 20% of head length. Body slender and angular. Scales on body and operculum mostly missing. Pelvic fin long, extends almost to anal fin origin. Gal bladder well developed (Ref. 37108).
Body shape (shape guide): fusiform / normal.
Mesopelagic species, adults trawled at depths below 400 m, juveniles below 150 meters. There is significant morphological variation between Indo-Pacific and other populations. Oviparous, with planktonic eggs and larvae (Ref. 36655).
Life cycle and mating behavior
Maturità | Riproduzione | Deposizione | Uova | Fecundity | 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)
IUCN Red List Status (Ref. 130435: Version 2024-2)
Threat to humans
Harmless
Human uses
Pesca: di nessun interesse
Strumenti
Special reports
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Fonti Internet
Estimates based on models
Preferred temperature (Fonte Biblio.
123201): 2.3 - 11.5, mean 7 °C (based on 293 cells).
Phylogenetic diversity index (Fonte Biblio.
82804): PD
50 = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.01072 (0.00442 - 0.02595), b=3.10 (2.89 - 3.31), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref.
93245).
Trophic level (Fonte Biblio.
69278): 3.3 ±0.3 se; based on size and trophs of closest relatives
Resilienza (Fonte Biblio.
120179): Medio, tempo minimo di raddoppiamento della popolazione 1.4 - 4.4 anni (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref.
59153): Low vulnerability (10 of 100).
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