Actinopteri (ray-finned fishes) > Perciformes/Notothenioidei
(Icefishes) > Bathydraconidae
(Antarctic dragonfishes) > Bathydraconinae
Etymology: Parachaenichthys: Greek, para = the side of + Greek, chaino = open the mouth (Ref. 45335).
Environment: milieu / climate zone / depth range / distribution range
Marine; demersal; depth range 5 - 270 m (Ref. 5192), usually - m (Ref. ). Polar; 0°C - ; 53°S - 57°S
Southern Ocean: Insular shelf of South Georgia and Sandwich Islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 59.0 cm SL male/unsexed; (Ref. 5192)
Adults feed on fishes and mysids, Crangon antarcticus and Chorismus antarcticus (Ref. 5192). Spawning from end of summer to early winter and hatching occurs throughout winter. Eggs large, 2.4-3.4 mm in diameter, bright red and benthic (Ref. 5192). Synchronous spawner (Ref. 50743). Larval pelagic phase is long (Ref. 35742).
Oocyte maturation occurs synchronously, thus, spawning is completed in a single occasion (Ref. 50743).
Gon, O., 1990. Bathydraconidae. p. 364-380. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. 462 p. (Ref. 5192)
IUCN Red List Status (Ref. 124695)
Threat to humans
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingNutrientsMass conversion
Estimates based on models
Preferred temperature (Ref. 115969
): -0.1 - 1.5, mean 0.6 °C (based on 10 cells).
Phylogenetic diversity index (Ref. 82805
= 0.7500 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00224 (0.00117 - 0.00427), b=3.25 (3.07 - 3.43), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 4.0 ±0.6 se; based on diet studies.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 8,585).
Vulnerability (Ref. 59153
): Moderate to high vulnerability (47 of 100) .
Nutrients (Ref. 124155
): Calcium = 25.6 [13.4, 47.8] mg/100g ; Iron = 0.381 [0.223, 0.633] mg/100g ; Protein = 17.9 [16.9, 18.8] % ; Omega3 = 0.258 [0.139, 0.459] g/100g ; Selenium = 25.7 [11.1, 54.8] μg/100g ; VitaminA = 11.1 [2.9, 38.8] μg/100g ; Zinc = 0.373 [0.261, 0.539] mg/100g (wet weight);