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Dissostichus mawsoni  Norman, 1937

Antarctic toothfish
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Dissostichus mawsoni   AquaMaps   Data sources: GBIF OBIS
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Image of Dissostichus mawsoni (Antarctic toothfish)
Dissostichus mawsoni
Picture by Sala, A.

Classification / Names Common names | Synonyms | Catalog of Fishes (gen., sp.) | ITIS | CoL | WoRMS | Cloffa

Actinopterygii (ray-finned fishes) > Perciformes (Perch-likes) > Nototheniidae (Cod icefishes)
Etymology: Dissostichus: Greek, disso = twice, one or other + Greek, stix, stichos =line, row (Ref. 45335).   More on author: Norman.

Environment / Climate / Range Ecology

Marine; pelagic-oceanic; depth range 0 - 2200 m (Ref. 90824), usually 88 - 1600 m (Ref. 5179).   Polar; 45°S - 78°S, 180°W - 180°E

Length at first maturity / Size / Weight / Age

Maturity: Lm 133.2  range ? - ? cm
Max length : 200 cm TL male/unsexed; (Ref. 90825); common length : 127 cm TL male/unsexed; (Ref. 90825); max. published weight: 80.0 kg (Ref. 5179); max. reported age: 39 years (Ref. 88081)

Short description Morphology | Morphometrics

Dorsal spines (total): 8 - 9; Dorsal soft rays (total): 25-27; Anal soft rays: 25 - 26. Uniformly brownish, with 4 irregular and incomplete dark cross-bars and with some dark spots (Ref. 11892).

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

Southern Ocean: circumpolar coastal Antarctic broadly to the Convergence (Ref. 11892). Endemic to the seas around Antarctica (Ref. 5179).

Biology     Glossary (e.g. epibenthic)

Larval pelagic phase is long (Ref. 89402).

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.

IUCN Red List Status (Ref. 90363)

Threat to humans

  Harmless




Human uses

Fisheries: minor commercial
FAO(fisheries: production; publication : search) | FIRMS (Stock assessments) | FisheriesWiki | Sea Around Us

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FAO areas
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Ecology
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Age/Size
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Length-weight
Length-length
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Morphometrics
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Internet sources

BHL | Cloffa | Websites from users | Check FishWatcher | CISTI | Catalog of Fishes (gen., sp.) | DiscoverLife | Faunafri | Fishtrace | GenBank(genome, nucleotide) | GOBASE | Google Books | Google Scholar | Google | IGFA World Record | iSpecies | PubMed | Scirus | SeaLifeBase | Tree of Life | uBio | Wikipedia(Go, Search) | World Records Freshwater Fishing | Zoobank | Zoological Record

Estimates of some properties based on empirical models

Phylogenetic diversity index (Ref. 82805):  PD50 = 0.7500   [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00912 (0.00526 - 0.01582), b=3.14 (2.99 - 3.29), based on LWR estimates for species & Subfamily-BS (Ref. 93245).
Trophic Level (Ref. 69278):  4.5   ±0.8 se; Based on diet studies.
Resilience (Ref. 69278):  Low, minimum population doubling time 4.5 - 14 years (K=0.056; Fec=400,000).
Vulnerability (Ref. 59153):  Very high vulnerability (81 of 100) .
Price category (Ref. 80766):   Low.