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Teleostei (teleosts) > Beryciformes (Sawbellies) > Melamphaidae (Bigscale fishes or ridgeheads)
Etymology: Melamphaes: Greek, melan, -anos = black + Greek, amphi = both side (Ref. 45335); nikolayi: Named for Nikolay Efimovich Kotlyar (1908-1994), father of the species author..

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

Marine; bathypelagic; depth range ? - 1000 m (Ref. 90261). Subtropical

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Northwest Pacific: Ogasawara Island.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 6.2 cm SL male/unsexed; (Ref. 90261)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 3; Dorsal soft rays (total): 15; Anal spines: 1; Anal soft rays: 9; Vertebrae: 29. This species is distinguished by the following: first gill arch with 21 rakers; total vertebrae 29, abdominal 12; haemal arch of the first caudal vertebra without a spine ('spur'); D III,15, P 15-16; V I,8; ventral fin originates beyond the vertical of the posterior end of the pectoral fin insertion; anal fin originates beyond the vertical of the last ray of the dorsal fin (Ref. 90261).

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | Larvae

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Kotlyar, A.N., 2012. Revision of genus Melamphaes (Melamphaidae): Part 4. Multi-raker species: M. ebelingi, M. occlusus sp. nova, and M. nikolayi sp. nova. Vopr. Ikhtiol. 52 (3):279-287. J. Ichthyol. 52(4):247-254. (Ref. 90261)

IUCN Red List Status (Ref. 130435)

Data deficient (DD) ; 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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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).

Trophic level (Ref. 69278): 3.5 ±0.2 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).

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

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Melamphaes nikolayi Kotlyar, 2012