Classification / Names
Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa
Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Zoarcidae
(Eelpouts) > Lycodinae
Etymology: Bothrocara: Greek, bostrykos = cure of lack of hair + Tupí, guaraní, acará = the name of a fish. It could be also from Greek, kara = face (Ref. 45335); nyx: Named for the Greek goddess of night and darkness; noun in apposition. It alludes ot the dark conditions prevalent in the deep waters and northern latitudes where this species occurs, and to the heavily pigmented lining of the mouth and visceral cavity.
Environment / Climate / Range
Marine; bathypelagic; depth range 790 - 1508 m (Ref. 56148). Temperate, preferred ?
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 21.7 cm SL male/unsexed; (Ref. 56148)
Morphology | Morphometrics
soft rays: 89 - 99;
Vertebrae: 108 - 116. Diagnosis: Vertebrae 17 - 19 + 90 - 98 = 108 - 116. Pectoral fin rays 12 - 15. Vomerine teeth 0 - 3. Gill rakers moderately long, 23 - 27. Short snout, less than eye-diameter. Median occipital pore present. Lateral line is not visible on the body. Interior of mouth darkly pigmented (Ref. 56148).
Northeast Pacific: Eastern Bering Sea.
Known from the upper continental slope (Ref. 56148).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Stevenson, D.E. and M.E. Anderson, 2005. Bothrocara nyx: a new species of eelpout (Perciformes: Zoarcidae) from the Bering Sea. Zootaxa 1094:53-64. (Ref. 56148)
IUCN Red List Status (Ref. 96402)
CITES (Ref. 94142)
Threat to humans
Common namesSynonymsMetabolismPredatorsEcotoxicologyReproductionMaturitySpawningFecundityEggsEgg development
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Phylogenetic diversity index (Ref. 82805
= 0.5039 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00129 (0.00055 - 0.00304), b=3.09 (2.88 - 3.30), based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.4 ±0.3 se; Based on size and trophs of closest relatives
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Moderate vulnerability (38 of 100) .