Emerald rockcod (Trematomus bernacchii)

Scientific name: Trematomus bernacchii Boulenger, 1902

Emerald rockcod (Trematomus bernacchii)

The Emerald rockcod (Trematomus bernacchii) is a marine fish of the family Nototheniidae.

Biology

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

Source: FishBase, licensed CC BY-NC 4.0.

Species facts

Scientific name
Trematomus bernacchii
Family
Nototheniidae (Cod icefishes)
Order
Perciformes (Perch-like fish)
Class
Actinopterygii (Ray-finned fishes)
Maximum length
28.0
Common length
25.0
Depth range
0–700 m (0–2297 ft)
Environment
Marine; demersal; depth range 0 - 700 m, usually 0 - 200 m
Climate
Polar
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.
Conservation status (IUCN)
Not Evaluated
Threat to humans
Harmless
Uses
Fisheries: commercial
Resilience
Medium, minimum population doubling time 1.4 - 4.4 years (K=0.19-0.91; tm=3-6; tmax=10; Fec=1,200)

Sources

Taxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0.

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