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Trematomus nicolai (Boulenger, 1902)

Spotted notothen
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Trematomus nicolai   AquaMaps   Data sources: GBIF OBIS
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Image of Trematomus nicolai (Spotted notothen)
Trematomus nicolai
Juvenile picture by Kellermann, A.

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);  nicolai: Named after Nicolai Hanson, biologist and collector of Southern Cross fishes, died at Cape Adare during the expedition (Ref. 11892).
More on author: Boulenger.

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; demersal; depth range 1 - 420 m (Ref. 11892). Polar; 65°S - 78°S

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

Southern Ocean: East Antarctica (some localities), but not from the Peninsula region and westward to the Ross Sea. Coasts of Adelie Land, Davis, Weddell, South Shetland and South Orkney Islands.

Size / Weight / Age

Maturity: Lm ?  range ? - ? cm
Max length : 36.0 cm TL male/unsexed; (Ref. 5179); max. published weight: 0.00 g

Short description Identification keys | Morphology | Morphometrics

Dorsal spines (total): 4 - 5; Anal soft rays: 31 - 35. Body brownish, more or less distinct dark crossbars, scattered small dark spots, fins dusky, spiny dorsal blackish (Ref. 11892).

Biology     Glossary (e.g. epibenthic)

A nearshore benthic species usually abundant in shelf waters of East Antartica (Ref. 122792). Adults feed primarily on amphipods, other fishes, and molluscan larvae, with lesser amount of polychaetes and mysids. They capture some prey in the water column, but are not cryopelagic.

Life cycle and mating behavior Maturities | Reproduction | Spawnings | Egg(s) | Fecundities | 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)

  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 compositions
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Ecology
Ecology
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Length-weight rel.
Length-length rel.
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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 | Zoological Record

Estimates based on models

Preferred temperature (Ref. 123201): -1.8 - -0.4, mean -1.4 °C (based on 382 cells).
Phylogenetic diversity index (Ref. 82804):  PD50 = 0.5005   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00631 (0.00419 - 0.00951), b=3.21 (3.08 - 3.34), in cm total length, based on LWR estimates for this species & Genus-body shape (Ref. 93245).
Trophic level (Ref. 69278):  3.6   ±0.53 se; based on food items.
Generation time: 13.7 ( na - na) years. Estimated as median ln(3)/K based on 2 growth studies.
Resilience (Ref. 120179):  Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 8,900).
Fishing Vulnerability (Ref. 59153):  Moderate to high vulnerability (51 of 100).