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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); contradictorius: Name from Latin 'contradictorius' meaning contradictory, stresses the close relation of characters of this species to other species in the M. longivelis complex..

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

Marine; bathypelagic; depth range ? - 200 m (Ref. 117111). Subtropical

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Western Pacific: at the boundary between the Tasman Sea and Fiji Sea.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 3.1 cm SL male/unsexed; (Ref. 117111)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 3; Dorsal soft rays (total): 15; Anal spines: 1; Anal soft rays: 8; Vertebrae: 28 - 29. This species is distinguished by the following characters: first gill arch with 18 rakers; eye diameter greater than width of suborbital bone; caudal peduncle depth more than twice its length; vertebrae 28-29, of them trunk 13; haemal arch of first caudal vertebra without spurs; D III,15; A I,8; ventral-fin soft rays 7; ventral fin is usually beyond vertical of posterior margin of pectoral fin insertion; anal fin begins beyond the vertical of last ray of dorsal fin (Ref. 117111).

Gonadal maturity stage II-III for of 3.1 cm SL male (Ref. 117111).

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

Main reference Upload your references | References | Coordinator | Collaborators

Kotlyar, A.N., 2015. Revision of the genus Melamphaes (Melamphaidae). 3. Oligo-raker species: M. proximus sp. n., M. contradictorius sp. n., and M. succedanaus sp. n. J. Ichthyol. 55(5):619-629 (Ref. 117111)

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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Internet sources

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): 3.2 ±0.2 se; based on size and trophs of closest relatives

Resilience (Ref. 120179): High, minimum population doubling time less than 15 months (Preliminary K or Fecundity.).

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

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Melamphaes contradictorius Kotlyar, 2015