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Scaly rockcod (Trematomus loennbergii) fish species and information / pictures of Scaly rockcod - Trematomus loennbergii

Scaly rockcod (Trematomus loennbergii) fish species information

Scientific Name
Trematomus loennbergii

Common Name
Scaly rockcod

Biology
Found more commonly at depths greater than 300 m. Feeds on amphipods (mainly Orchomene plebs), errant polychaetes, and in lesser amounts, fishes. Isopods and other crustaceans are probably included in the diet.

Classification

Classified By

Regan, 1913

Class

Ray-finned fishes (Actinopterygii)

Order

Perch-like fish (Perciformes)

Family

Cod icefishes (Nototheniidae)

Distribution

Region

Southern Ocean

Distribution

Southern Ocean: coasts of Antarctic Peninsula, Queen Mary, Adelie, South Victoria Coasts, Davis, Ross and Weddell seas.

Range

61°S - 78°S

Environment

Climate

Deep-water

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

1191 m

Zone

bathydemersal

Environment

Marine; bathydemersal; depth range 0 - 1191 m (Ref. 45168), usually 65 - 832 m

Trophic Level

3.33 s.e. 0.48 Based on food items.

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

30.0 cm

Common Length

20.0 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

Moderate to high vulnerability (45 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (Fec = 5,900)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated