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Antarctic toothfish (Dissostichus mawsoni) fish species and information / pictures of Antarctic toothfish - Dissostichus mawsoni

Antarctic toothfish (Dissostichus mawsoni) fish species information

Scientific Name
Dissostichus mawsoni

Common Name
Antarctic toothfish

Biology
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).

Classification

Classified By

Norman, 1937

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cod icefishes (Nototheniidae)

Distribution

Region

Southern Ocean

Distribution

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

Range

45°S - 78°S, 180°W - 180°E

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

1600 m

Zone

pelagic-oceanic

Environment

Marine; pelagic-oceanic; depth range 0 - 1600 m (Ref. 11892)

Trophic Level

4.45 s.e. 0.78 Based on diet studies.

Occurs in Marine / Salt water

True

Occurs in Brackish water

False

Occurs in Fresh Water

False

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

175 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial

Vulnerability

Very high vulnerability (81 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (K=0.056; Fec=400,000)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated