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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: Gilbert.

Environment: milieu / climate zone / depth range / distribution range Ekologi

marina batypelagisk; djupintervall 0 - 3263 m (Ref. 83719). Subtropical; 30°N - 25°N

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North Pacific Ocean.

Size / Vikt / Age

Maturity: L_m ? range ? - ? cm
Max length : 12.1 cm SL hane/ej könsbestämd; (Ref. 83719)

Short description Bestämningsnycklar | Morfologi | Morfometri

Taggstrålar i ryggfenan (totalt) : 3; Mjukstrålar i ryggfenan (totalt) : 12 - 13; Taggstrålar i analfenan: 1; Mjukstrålar i analfenan: 9; Ryggkotor: 27 - 29. This species is distinguished by the following characters: spined posterior and lower margins of the praeoperculum with an unspined notch in the angular part of it; insertion of ventral fins at the level of the vertical of the posterior margin of the pectoral fin insertion; upper jaw extends beyond the vertical of posterior eye margin; soft rays 12-13 in dorsal fin, 9-10 in anal fin; first branchial arch with 27-30 rakers; vertebrae 27-29; pyloric caeca 7 (Ref. 83719).

This was caught by non-closing fishing gear in water horizons of 1000-0 to 2000-0 m (Ref. 83719).

Life cycle and mating behavior Maturities | Reproduktion | Spawnings | Egg(s) | Fecundities | Larver

Main reference Upload your references | referenser | Koordinator | Medarbetare

Kotlyar, A.N., 2009. Revision of the genus Poromitra (Melamphaidae): Part 3. Species of P. cristiceps: P. cristiceps, P. nigrofulva, P. frontosa, and P. nigriceps. J. Ichthyol. 49(6):421-434. (Ref. 83719)

IUCN Red List Status (Ref. 130435)

Least Concern (LC) ; Date assessed: 30 December 2019

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

FAO - Publication: search | FishSource |

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Trophic ecology
Födoslag
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Ecology
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Life cycle
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Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: 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): 3.4 ±0.3 se; based on size and trophs of closest relatives

Resiliens (Ref. 120179): Låg, lägsta populationsfördubblingstid 4,5-14 år (Preliminary K or Fecundity.).

Fishing Vulnerability (Ref. 59153): Low vulnerability (10 of 100).

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Poromitra cristiceps (Gilbert, 1890)