Fin's Fish Guide
The Emerald notothen (Trematomus bernacchii) is a saltwater fish of the family Nototheniidae that grows up to 28 cm.
Description
The emerald rockcod is an Antarctic notothen (Nototheniidae) from the icy waters around Antarctica. The species has a stocky body with a large head and is superbly adapted to the extremely low, stable temperatures (around freezing) thanks to antifreeze proteins in its blood. It lives bottom-bound on the continental shelf. As a bottom hunter it feeds on small crustaceans, worms and other invertebrates. The species is harmless to humans.
Frequently asked questions
How do you recognise the Emerald notothen?
The Emerald notothen has a torpedo-shaped body, is mainly brown and shows a spots pattern. Antifreeze proteins in the blood against freezing point; bottom-associated Antarctic icefish.
Where does the Emerald notothen live?
The Emerald notothen lives in the sea (marine waters) and is mostly found around sand or mud bottom. Ice-cold waters around Antarctica; continental shelf.
How big does the Emerald notothen get?
The Emerald notothen grows to a maximum of about 28 cm. On average the species is around 25 cm.
Is the Emerald notothen dangerous to humans?
No, the Emerald notothen is harmless to humans. None required: this species is harmless to humans.
Is the Emerald notothen edible?
The Emerald notothen is rarely eaten.
More photos
Want the complete picture on the Emerald notothen?
Point your camera at the fish and Fin names the species in seconds. Free, and the Emerald notothen is one of 12,519 species in the app.
All data
Identification
Appearance
Habitat & distribution
Behaviour & biology
For anglers
Safety
Status & sources
Same genus Trematomus
More from the family Nototheniidae
Want the complete picture on the Emerald notothen?
Point your camera at the fish and Fin names the species in seconds. Free, and the Emerald notothen is one of 12,519 species in the app.