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Teleostei (teleosts) > Polymixiiformes (Beardfishes) > Polymixiidae (Beardfishes)
Etymology: Polymixia: Greek, poly = a lot of + Greek, myxos = mucus (Ref. 45335).
Eponymy: Yuri Nikolaevich Shcherbachev works at the P P Shirov Institute of Oceanography, Russian Academy of Sciences. [...] (Ref. 128868), visit book page.

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

Marine; benthopelagic; depth range 180 - 250 m (Ref. 10919). Deep-water

Distribution Countries | FAO areas | Ecosystems | Occurrences | Point map | Introductions | Faunafri

Southeast Pacific: near the junction of the Nasca and Sala y Gomez ridges. High Seas only.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 18.8 cm SL male/unsexed; (Ref. 10919)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 5 - 6; Dorsal soft rays (total): 34 - 37; Anal spines: 4; Anal soft rays: 16 - 18; Vertebrae: 28.

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

Kotlyar, A.N., 1993. A new species of the genus Polymixia (Polymixiidae, Beryciformes) from the Kyushu-Palau submarine ridge and notes on the other members of the genus. J. Ichthyol. 33(3):30-49. (Ref. 10919)

IUCN Red List Status (Ref. 130435: Version 2024-1)

Data deficient (DD) ; Date assessed: 11 October 2018

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

Harmless

Human uses

Fisheries: minor commercial

FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
Food rations
Predators

Ecology
Ecology

Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance

Life cycle
Reproduction
Maturity
Maturity/Gills rel.
Fecundity
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Eggs
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Larvae
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Distribution
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Anatomy
Gill area
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Swimming type
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Visual pigments
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Genetics
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Internet sources

Estimates based on models

Phylogenetic diversity index (Ref. 82804): PD₅₀ = 0.5029 [Uniqueness, from 0.5 = low to 2.0 = high].

Bayesian length-weight: a=0.01096 (0.00502 - 0.02394), b=3.03 (2.84 - 3.22), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245).

Trophic level (Ref. 69278): 3.9 ±0.4 se; based on size and trophs of closest relatives

Generation time: 5.6 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.

Resilience (Ref. 120179): Medium, minimum population doubling time 1.4 - 4.4 years (K=0.20; tmax=9).

Fishing Vulnerability (Ref. 59153): Low vulnerability (13 of 100).

Price category (Ref. 80766): Unknown.

Polymixia yuri Kotlyar, 1982