Actinopterygii (ray-finned fishes) > Polymixiiformes
(Beardfishes) > Polymixiidae
Etymology: Polymixia: Greek, poly = a lot of + Greek, myxos = mucus (Ref. 45335). More on author: Lowe.
Environment / Climate / Range
Marine; bathydemersal; depth range 100 - 770 m (Ref. 7412), usually 360 - 540 m (Ref. 7412). Deep-water
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)
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).
Found on semi-hard and soft bottoms on the continental shelf and slope. Marketed fresh and frozen.
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
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. 96402)
CITES (Ref. 94142)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5029 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00955 (0.00693 - 0.01315), b=3.09 (3.00 - 3.18), based on LWR estimates for this species (Ref. 93245
Trophic Level (Ref. 69278
): 4.2 ±0.73 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Assuming tm=2-4).
Vulnerability (Ref. 59153
): Moderate vulnerability (43 of 100) .