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Trematomus brachysoma Pappenheim, 1912

Stocky rockcod
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Trematomus brachysoma
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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).

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

Marine; pelagic-oceanic; depth range 0 - 429 m (Ref. 11892), usually 0 - 30 m. Polar; 61°S - 79°S

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

Southern Ocean: Ross Sea, Davis Sea, Wilhelm II Coast, north of Edward VII and west coast of Antarctic Peninsula.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 17.2 cm SL male/unsexed; (Ref. 11892)

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 4 - 5; Dorsal soft rays (total): 29 - 32; Anal soft rays: 26 - 30. In life yellowish brown, iridescent blue dorsally; some specimens with patches of coral pink near the head (Ref. 5179). Six dark spots on back below the dorsal fins (Ref. 11892).

Biology     Glossary (e.g. epibenthic)

A cryopelagic species associated with the underside of ice. Feeds on copepods and euphausiids.

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 2024-2)

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
Food rations
Predators
Ecology
Ecology
Population dynamics
Growth parameters
Max. ages / sizes
Length-weight rel.
Length-length rel.
Length-frequencies
Mass conversion
Recruitment
Abundance
Life cycle
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Maturity
Maturity/Gills rel.
Fecundity
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Larvae
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Distribution
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Anatomy
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Physiology
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References

Tools

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Special reports

Check for Aquarium maintenance | Check for Species Fact Sheets | Check for Aquaculture Fact Sheets

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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): -1.9 - -1.2, mean -1.8 °C (based on 236 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.7500   [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):  3.1   ±0.28 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 (11 of 100).
Nutrients (Ref. 124155):  Calcium = 45.5 [24.5, 107.4] mg/100g; Iron = 0.698 [0.307, 1.409] mg/100g; Protein = 17.2 [15.6, 18.7] %; Omega3 = 0.442 [0.234, 0.858] g/100g; Selenium = 10.1 [3.6, 23.3] μg/100g; VitaminA = 31.1 [6.5, 144.3] μg/100g; Zinc = 0.631 [0.419, 0.972] mg/100g (wet weight);