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Teleostei (teleosts) > Polymixiiformes (Beardfishes) > Polymixiidae (Beardfishes)
Etymology: Polymixia: Greek, poly = a lot of + Greek, myxos = mucus (Ref. 45335).

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

Marine; benthopelagic; depth range 19 - 435 m (Ref. 10919). Deep-water

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

Indian Ocean.

Size / Weight / Age

Maturity: L_m ? range ? - ? cm
Max length : 23.5 cm SL male/unsexed; (Ref. 10919); max. published weight: 183.50 g (Ref. 121526)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 5 - 6; Dorsal soft rays (total): 30 - 34; Anal spines: 3; Anal soft rays: 13 - 15; Vertebrae: 29.

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)

Least Concern (LC) ; 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
Spawning
Spawning aggregations
Eggs
Egg development
Larvae
Larval dynamics

Distribution
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Anatomy
Gill area
Brain
Otolith

Physiology
Body composition
Nutrients
Oxygen consumption
Swimming type
Swimming speed
Visual pigments
Fish sound
Diseases & Parasites
Toxicity (LC50s)

Genetics
Genetics
Heterozygosity
Heritability

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Stamps, coins, misc.

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Internet sources

Estimates based on models

Preferred temperature (Ref. 123201): 13.8 - 26.1, mean 21.8 °C (based on 75 cells).

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

Bayesian length-weight: a=0.00912 (0.00507 - 0.01640), b=2.99 (2.83 - 3.15), in cm total length, based on LWR estimates for this species & (Sub)family-body (Ref. 93245).

Trophic level (Ref. 69278): 4.0 ±0.4 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 (19 of 100).

Price category (Ref. 80766): Unknown.

Polymixia fusca Kotthaus, 1970