Actinopterygii (ray-finned fishes) > Perciformes
(Perch-likes) > Nototheniidae
Etymology: Trematomus: Greek, trematos = hole + Greek, tomo = section, cut (Ref. 45335); tokarevi: Named after Dr. A.K. Tokarev, ichthyologist of the First Soviet Antarctic Expedition (Ref. 11892). More on author: Andriashev.
This species is placed in the genus Pseudotrematomus in Eschmeyer (CofF ver. Sep. 2011: Ref. 88002).
Environment: milieu / climate zone / depth range / distribution range
Marine; bathydemersal; depth range 295 - 700 m (Ref. 11892). Deep-water; 60°S - 70°S
Southern Ocean: Oates Land and Shackleton Ice Shelf in East Antarctic, and near the South Orkney and South Shetland islands.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 22.4 cm TL male/unsexed; (Ref. 5179)
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
Dewitt, H.H., P.C. Heemstra and O. Gon, 1990. Nototheniidae. p. 279-331. In O. Gon and P.C. Heemstra (eds.) Fishes of the Southern Ocean. J.L.B. Smith Institute of Ichthyology, Grahamstown, South Africa. (Ref. 5179)
IUCN Red List Status (Ref. 115185)
CITES (Ref. 115941)
Threat to humans
Fisheries: of no interest
ReferencesAquacultureAquaculture profileStrainsGeneticsAllele frequenciesHeritabilityDiseasesProcessingMass conversion
Estimates of some properties based on models
Preferred temperature (Ref. 115969
): -1.4 - 0.8, mean -0.4 (based on 100 cells).
Phylogenetic diversity index (Ref. 82805
= 0.5005 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00297 - 0.01341), b=3.19 (3.01 - 3.37), in cm Total Length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic Level (Ref. 69278
): 3.2 ±0.41 se; Based on food items.
Resilience (Ref. 69278
): Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (33 of 100) .