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Blackfin notothen (Trematomus scotti) — Nototheniidae

Blackfin notothen

Trematomus scotti
Family: Nototheniidae

The Blackfin notothen (Trematomus scotti) is a saltwater fish of the family Nototheniidae that grows up to 16 cm.

Length
16 cm
Water
Saltwater
Depth
20–793 m
Diet
Carnivore
Behaviour
Small groups
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Southern Ocean around Antarctica; continental shelf and slope.
Edibility
Not eaten

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Description

Scott's notothen is a small notothenioid fish of the family Nototheniidae from the cold waters of the Southern Ocean around Antarctica. The species grows to about 16 cm and has a stocky, mottled body with a large head. It lives demersally on the continental shelf and slope. As a bottom searcher it feeds mainly on polychaete worms, krill (euphausiids) and amphipods. Like other notothenioids it is adapted to the ice-cold water around freezing point. The species is a link in the Antarctic food web and is harmless to humans.

Frequently asked questions

How do you recognise the Blackfin notothen?

The Blackfin notothen has a torpedo-shaped body, is mainly brown and shows a marbled pattern. Cold-water notothen of the Southern Ocean; feeds on worms, krill and amphipods.

Where does the Blackfin notothen live?

The Blackfin notothen lives in the sea (marine waters) and is mostly found around sand or mud bottom. Southern Ocean around Antarctica; continental shelf and slope.

How big does the Blackfin notothen get?

The Blackfin notothen grows to a maximum of about 16 cm.

Is the Blackfin notothen dangerous to humans?

No, the Blackfin notothen is harmless to humans. None required: this species is harmless to humans.

Is the Blackfin notothen edible?

The Blackfin notothen is not usually eaten.

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All data

Identification

English name
Blackfin notothen verified
Scientific name
Trematomus scotti
Family
Nototheniidae
Other names
Crowned rockcod verified

Appearance

Size class
Medium verified
Max length (cm)
16 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Brown
Pattern
Marbled
Tail shape
Straight
Mouth position
Terminal
Lips
Thick / fleshy
Barbels
No sourced
Dorsal fins
Two separate
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Saltwater sourced
Substrate
Sand / mud bottom sourced
Min depth (m)
20 verified
Max depth (m)
793 verified
Natural range
Southern Ocean around Antarctica; continental shelf and slope.
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Polychaetes, krill (euphausiids) and amphipods sourced
Social behaviour
Small groups
Territorial
No
Reproduction
Separate sexes sourced
Sexual dimorphism
No
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Cold-water notothen of the Southern Ocean; feeds on worms, krill and amphipods. sourced

For anglers

Edibility
Not eaten sourced
Fishing method
Bottom fishing with natural bait (worm, shrimp or fish) on or just above the seabed.
Regulations source

Safety

Danger to humans
Harmless sourced
First aid
None required: this species is harmless to humans. sourced

Status & sources

Sources
FishBase via GBIF (DwC-A), CC-BY-NC 4.0

Same genus Trematomus

More from the family Nototheniidae

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