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Blotched catfish (Clarias submarginatus) — Clariidae

Blotched catfish

Clarias submarginatus
Family: Clariidae
VU · Vulnerable

The Blotched catfish (Clarias submarginatus) is a freshwater fish of the family Clariidae that grows up to 16 cm.

Length
16 cm
Water
Freshwater
Diet
Carnivore
Behaviour
Solitary
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Harmless
Edibility
Rarely eaten

Description

The Congo walking catfish is an African catfish of the airbreathing catfish family (Clariidae) from the Congo basin in Central Africa. The species grows to about 16 cm and has an elongate, eel-like body with a flattened head, four pairs of barbels and a long dorsal and anal fin. Like other clariids it has an accessory air-breathing organ, with which it can survive in oxygen-poor water and even move over land for short periods. Little is known about its biology. As a bottom searcher it feeds on small invertebrates, insect larvae and detritus. The pectoral and dorsal spines can prick. Owing to a restricted range and threats the species is listed as Vulnerable (VU).

Frequently asked questions

How do you recognise the Blotched catfish?

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

Where does the Blotched catfish live?

The Blotched catfish lives in fresh water and is mostly found around sand or mud bottom.

How big does the Blotched catfish get?

The Blotched catfish grows to a maximum of about 16 cm.

Is the Blotched catfish dangerous to humans?

No, the Blotched catfish is harmless to humans.

Is the Blotched catfish edible?

The Blotched catfish is rarely eaten.

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All data

Identification

Dutch name
Congo-loopmeerval sourced
English name
Blotched catfish verified
Scientific name
Clarias submarginatus
Family
Clariidae

Appearance

Size class
Medium verified
Max length (cm)
16.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown inferred
Pattern
Plain inferred
Tail shape
Rounded inferred
Mouth position
Terminal inferred
Lips
Thick / fleshy inferred
Barbels
Yes sourced
Dorsal fins
One continuous inferred
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Origin
Native sourced

Behaviour & biology

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

For anglers

Edibility
Rarely 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 Clarias

More from the family Clariidae

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