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Setting up your tank

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Emerald rockcod (Trematomus bernacchii) fish species and information / pictures of Emerald rockcod - Trematomus bernacchii

Emerald rockcod (Trematomus bernacchii) fish species information

Scientific Name
Trematomus bernacchii

Common Name
Emerald rockcod

Biology
Found in seafloors, well adapted to extremely low and stable temperatures (-1.86?C, annual mean temperature of McMurdo Sound) (Ref. 45168). Feeds on polychaetes, gastropods, isopods, amphipods and few algae. Utilized for human consumption.

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: Peter Island, South Shetland, Elephant and South Orkney islands. Mac-Robertson, Queen Mary, Adelie Coasts, Weddell, Davis and Ross seas. East Antarctica from Queen Maud Land to Terre Adelie.

Range

61°S - 78°S

Environment

Climate

Polar

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

0 m

Depth To - meters

700 m

Zone

demersal

Environment

Marine; demersal; depth range 0 - 700 m (Ref. 11892), usually 0 - 200 m (Ref. 45168)

Trophic Level

3.26 s.e. 0.41 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

28.0 cm

Common Length

25.0 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: commercial

Vulnerability

Low vulnerability (19 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.19-0.91; tm=3-6; tmax=10; Fec=1,200)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated