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Mormyrids (Mormyrus rume) — Mormyridae

Mormyrids

Mormyrus rume
Family: Mormyridae
LC · Least Concern

The Mormyrids (Mormyrus rume) is a freshwater fish of the family Mormyridae that grows up to 100 cm.

Length
100 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Body shape
Torpedo-shaped
Substrate
Sand / mud bottom
Danger
Harmless
Range
Rivers of West, Central and northeast Africa, including the Nile, Niger and Senegal.
Edibility
Commonly eaten

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Description

Mormyrus rume is a large African freshwater fish of the elephantfish family (Mormyridae). It has a streamlined, silvery-grey to brownish body, a downward-pointing snout-like mouth and a long dorsal fin. The species can reach about one metre and inhabits rivers, where it uses a weak electric organ to sense its surroundings and locate prey. It feeds mainly on insects and insect larvae taken from the bottom. The electric discharges also play a role in territorial behaviour. The species is of local commercial fishery importance.

Frequently asked questions

How do you recognise the Mormyrids?

The Mormyrids has a torpedo-shaped body, is mainly silver-grey and shows a plain pattern. Weak electric organ for orientation and territorial behaviour; characteristic snout-shaped mouth.

Where does the Mormyrids live?

The Mormyrids lives in fresh water and is mostly found around sand or mud bottom. Rivers of West, Central and northeast Africa, including the Nile, Niger and Senegal.

How big does the Mormyrids get?

The Mormyrids grows to a maximum of about 100 cm.

Is the Mormyrids dangerous to humans?

No, the Mormyrids is harmless to humans. This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status.

Is the Mormyrids edible?

Yes, the Mormyrids is commonly eaten.

More photos

Mormyrids (Mormyrus rume) — Mormyridae — 2
iNaturalist ((c) ONG OeBenin, some rights reserved (CC BY-NC))
Mormyrids (Mormyrus rume) — Mormyridae — 3
iNaturalist ((c) mlanguy, some rights reserved (CC BY-NC))
Mormyrids (Mormyrus rume) — Mormyridae — 4
Wikimedia Commons — MM. P. J. Smit & J. Green (Public domain)
Mormyrids (Mormyrus rume) — Mormyridae — 5
iNaturalist ((c) AMADOU BAHLEMAN FARID, some rights reserved (CC BY-NC))

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All data

Identification

English name
Mormyrids verified
Scientific name
Mormyrus rume
Family
Mormyridae
Other names
Trunkfish verified

Appearance

Size class
Extra large verified
Max length (cm)
100 verified
Body shape
Torpedo-shaped sourced
Dominant colour
Silver / grey
Pattern
Plain
Tail shape
Forked
Mouth position
Inferior (downward)
Lips
Thin
Barbels
No sourced
Dorsal fins
One continuous
Dorsal spines
No sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
Rivers of West, Central and northeast Africa, including the Nile, Niger and Senegal.
Origin
Native sourced

Behaviour & biology

Diet
Carnivore sourced
Diet (detail)
Insects and insect larvae sourced
Social behaviour
Solitary
Territorial
Yes
Reproduction
Separate sexes sourced
Sexual dimorphism
No
Max. age (years)
6 verified
Seasonality
Present year-round in its habitat; no pronounced seasonality known.
Special features
Weak electric organ for orientation and territorial behaviour; characteristic snout-shaped mouth. sourced

For anglers

Edibility
Commonly 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
This species is harmless to humans. No specific first aid is needed. Still handle the fish with care: mind the fin rays and the sharp edges of the gill cover, and rinse any scratch with clean water and cover it. For a dirty or deep wound check tetanus status. verified

Status & sources

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

Same genus Mormyrus

More from the family Mormyridae

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