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Polymixia nobilis Lowe, 1836

Stout beardfish
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Polymixia nobilis   AquaMaps   Data sources: GBIF OBIS
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Image of Polymixia nobilis (Stout beardfish)
Polymixia nobilis
Male picture by Cambraia Duarte, P.M.N. (c)ImagDOP

Common names from other countries

Poisson chèvre robuste, Chivato de fondo, Barbudo, ... more

Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

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

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

Marine; benthopelagic; depth range 100 - 770 m (Ref. 7412), usually 360 - 540 m (Ref. 7412).   Deep-water

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

Eastern Atlantic: Azores, Madeira, the Canary Islands, Cape Verde and St. Helena Islands. Western Atlantic: West Indies, Saba Bank, Leeward Islands, off northern coast of Cuba and west of the Bahamas. Reported to occur in the northern coast of South America (Ref. 5217).

Length at first maturity / Size / Weight / Age

Maturity: Lm 26.0, range 20 - ? cm
Max length : 48.0 cm TL male/unsexed; (Ref. 5217); common length : 30.0 cm TL male/unsexed; (Ref. 7412); max. reported age: 14 years (Ref. 88061)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 5; Dorsal soft rays (total): 34 - 37; Anal spines: 4; Anal soft rays: 15 - 16; Vertebrae: 29. Dark brownish grey in color, silvery below; black blotch on distal part of anterior dorsal rays (Ref. 6624). Snout blunt, rounded, adipose. Hyoid barbels present (Ref. 37108).

Biology     Glossary (e.g. epibenthic)

Found on semi-hard and soft bottoms on the continental shelf and slope. Marketed fresh and frozen.

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

Main reference Upload your references | References | Coordinator | Collaborators

Hureau, J.-C., 1990. Polymixiidae. p. 625. In J.C. Quero, J.C. Hureau, C. Karrer, A. Post and L. Saldanha (eds.) Check-list of the fishes of the eastern tropical Atlantic (CLOFETA). JNICT, Lisbon; SEI, Paris; and UNESCO, Paris. Vol. 2. (Ref. 7412)

IUCN Red List Status (Ref. 130435)

  Least Concern (LC) ; Date assessed: 15 July 2014

CITES (Ref. 128078)

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(Fisheries: production; publication : search) | FishSource | Sea Around Us

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Summary page | Point data | Common names | Photos

Internet sources

Aquatic Commons | BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes(genus, species) | DiscoverLife | ECOTOX | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GloBI | GOBASE | | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | National databases | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Scirus | SeaLifeBase | Tree of Life | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 115969): 8.4 - 15.3, mean 11.4 (based on 187 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5029   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00933 (0.00703 - 0.01240), b=3.10 (3.02 - 3.18), in cm Total Length, based on LWR estimates for this species (Ref. 93245).
Trophic level (Ref. 69278):  4.2   ±0.73 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (48 of 100).
Price category (Ref. 80766):   Unknown.