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Blood fish (Phractolaemus ansorgii) — Phractolaemidae

Blood fish

Phractolaemus ansorgii
LC · Least Concern

The Blood fish (Phractolaemus ansorgii) is a freshwater fish of the family Phractolaemidae that grows up to 25 cm.

Length
25 cm
Water
Freshwater
Diet
Herbivore
Behaviour
Small groups
Body shape
Elongated (eel-like)
Substrate
Mixed bottom
Danger
Harmless
Edibility
Not eaten

Description

Phractolaemus ansorgii is an unusual African freshwater fish and the only species of the family Phractolaemidae. It lives in forest pools and swamps of West and Central Africa and reaches about 25 cm. The species has a remarkable mouth that can be projected as a small trunk and a swim bladder entirely organised as a lung, with which the fish can breathe air and survive in almost oxygen-free water. It is microphagous, feeding mainly on epiphytes (algae) and detritus. Because of these adaptations the species is sometimes found in extreme, oxygen-poor habitats, such as near lungfish nests.

Frequently asked questions

How do you recognise the Blood fish?

The Blood fish has an elongate, eel-like body, is mainly red-orange and shows a plain pattern.

Where does the Blood fish live?

The Blood fish lives in fresh water and is mostly found around mixed bottom.

How big does the Blood fish get?

The Blood fish grows to a maximum of about 25 cm.

Is the Blood fish dangerous to humans?

No, the Blood fish is harmless to humans.

Is the Blood fish edible?

The Blood fish is not usually eaten.

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All data

Identification

Dutch name
Scharniermondvis sourced
English name
Blood fish verified
Scientific name
Phractolaemus ansorgii
Family
Phractolaemidae
Other names
Bloodfish; Hingemouth verified

Appearance

Size class
Medium verified
Max length (cm)
25.0 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Red / orange inferred
Pattern
Plain inferred
Tail shape
Forked inferred
Mouth position
Superior (upward) inferred
Lips
Thick / fleshy 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
Herbivore sourced
Social behaviour
Small groups 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

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