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Bluntnose knifefish (Brachyhypopomus brevirostris) — Hypopomidae

Bluntnose knifefish

Brachyhypopomus brevirostris
Family: Hypopomidae
LC · Least Concern

The Bluntnose knifefish (Brachyhypopomus brevirostris) is a freshwater fish of the family Hypopomidae that grows up to 35 cm.

Length
34.7 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Edibility
Not eaten

Description

The bluntnose knifefish is a weakly electric knifefish (Hypopomidae) from northern South America. The species has an elongate body with a short, blunt snout and a long, continuous anal fin with which it swims undulating forwards and backwards; a dorsal fin is absent. It keeps among emergent and floating bank plants of rivers and swamps. With a weak electric organ in the tail it navigates in turbid water, detects prey and communicates with conspecifics at night. It feeds on insect larvae and small invertebrates. The species is harmless to humans.

Frequently asked questions

How do you recognise the Bluntnose knifefish?

The Bluntnose knifefish has an elongate, eel-like body, is mainly brown and shows a plain pattern.

Where does the Bluntnose knifefish live?

The Bluntnose knifefish lives in fresh water and is mostly found around mixed bottom.

How big does the Bluntnose knifefish get?

The Bluntnose knifefish grows to a maximum of about 35 cm.

Is the Bluntnose knifefish dangerous to humans?

No, the Bluntnose knifefish is harmless to humans.

Is the Bluntnose knifefish edible?

The Bluntnose knifefish is not usually eaten.

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All data

Identification

Dutch name
Stompsnuit-mesvis sourced
English name
Bluntnose knifefish verified
Scientific name
Brachyhypopomus brevirostris
Family
Hypopomidae

Appearance

Size class
Medium verified
Max length (cm)
34.7 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thin inferred
Barbels
No sourced
Dorsal fins
One continuous inferred
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Mixed bottom sourced
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Social behaviour
Solitary inferred
Territorial
No inferred
Reproduction
Separate sexes sourced
Sexual dimorphism
No inferred

For anglers

Edibility
Not eaten sourced
Fishing method
Bodemvissen met natuurlijk aas (worm, garnaal of vis) op of vlak boven de bodem. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Harmless sourced

Status & sources

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

Same genus Brachyhypopomus

More from the family Hypopomidae

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