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Trematomus tokarevi Andriashev, 1978

Bigeye notothen
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Trematomus tokarevi   AquaMaps   Data sources: GBIF OBIS
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Image of Trematomus tokarevi (Bigeye notothen)
Trematomus tokarevi
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Classification / Names Common names | Synonyms | Catalog of Fishes(genus, species) | ITIS | CoL | WoRMS | Cloffa

Teleostei (teleosts) > Perciformes/Notothenioidei (Icefishes) > Nototheniidae (Cod icefishes) > Trematominae
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).
Eponymy: Dr Aleksey K Tokarev (1915–1957) served as ichthyologist on the First Soviet Antarctic Expedition. He died while returning from the Antarctic. (Ref. 128868), visit book page.
More on author: Andriashev.

Issue
The genus Pseudotrematomus is a synonym of Trematomus, which is confirmed by a molecular study to be published (J.-C. Hureau, pers. comm. 08 Jun. 2010).

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

Marine; bathydemersal; depth range 200 - 700 m (Ref. 122792). Deep-water; 60°S - 70°S

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

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)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 4 - 6; Dorsal soft rays (total): 35 - 37; Anal soft rays: 32 - 33; Vertebrae: 51 - 53. Slender, deep bodied form. Light cinnamon brown with greenish hue above, light below. Body with spots and strands of grayish-brown.

Biology     Glossary (e.g. epibenthic)

A deep-water species, generally inhabiting deep waters and less frequently in shallow waters. Collected from flat bottom without big shelters, like rocky niches and seaweeds (Ref. 122792).

Life cycle and mating behavior Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae

Main reference Upload your references | References | Coordinator | Collaborators

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. 130435: Version 2024-1)

Not Evaluated 

CITES

Not Evaluated

CMS (Ref. 116361)

Not Evaluated

Threat to humans

  Harmless





Human uses

Fisheries: of no interest
FAO - Publication: search | FishSource |

More information

Trophic ecology
Food items
Diet composition
Food consumption
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Predators
Ecology
Ecology
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Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
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Abundance
Life cycle
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Maturity
Maturity/Gills rel.
Fecundity
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Anatomy
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References

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Summary page | Point data | Common names | Photos

Internet sources

AFORO (otoliths) | Aquatic Commons | BHL | Cloffa | BOLDSystems | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes: genus, species | DiscoverLife | ECOTOX | FAO - Publication: search | Faunafri | Fishipedia | Fishtrace | GenBank: genome, nucleotide | GloBI | Google Books | Google Scholar | Google | IGFA World Record | MitoFish | Otolith Atlas of Taiwan Fishes | PubMed | Reef Life Survey | Socotra Atlas | Tree of Life | Wikipedia: Go, Search | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): -1.4 - 0.8, mean -0.4 °C (based on 100 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00537 (0.00279 - 0.01033), b=3.24 (3.08 - 3.40), in cm total length, based on LWR estimates for this Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.2   ±0.41 se; based on food items.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.).
Fishing Vulnerability (Ref. 59153):  Low vulnerability (12 of 100).