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Setting up your tank

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Dusky rockcod (Trematomus newnesi) fish species and information / pictures of Dusky rockcod - Trematomus newnesi

Dusky rockcod (Trematomus newnesi) fish species information

Scientific Name
Trematomus newnesi

Common Name
Dusky rockcod

Biology
Dorsal spines (total): 5 - 8; Dorsal soft rays (total): 29-38; Anal soft rays: 29 - 36

Classification

Classified By

Boulenger, 1902

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cod icefishes (Nototheniidae)

Distribution

Region

Southern Ocean

Distribution

Southern Ocean: East Antarctic, Weddell Sea, West coast of Antarctic Peninsula, South Shetland Islands, Elephant Island, South Orkney Islands, Mac Robertson, George V, Queen Mary, Adelie Coasts, Davis Sea and Ross Sea.

Range

60°S - 78°S

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

400 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 400 m (Ref. 11892)

Trophic Level

3.21 s.e. 0.43 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

20.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5005 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest

Vulnerability

Low to moderate vulnerability (30 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Preliminary K or Fecundity.)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated