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Bristly catfish (Amblydoras affinis) — Doradidae

Bristly catfish

Amblydoras affinis
Family: Doradidae

The Bristly catfish (Amblydoras affinis) is a freshwater fish of the family Doradidae that grows up to 13 cm.

Length
13.2 cm
Water
Freshwater
Activity
Nocturnal
Body shape
Elongated (eel-like)
Substrate
Sand / mud bottom
Danger
Can cause injury
Range
South America: Bolivia, Brazil, Guyana

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Description

The Bristly catfish is a thorny catfish (Doradidae) from slow-flowing fresh water of the Amazon basin in South America. The species grows to about 13 cm and has a sturdy, dark body with a row of bony, thorned plates along the flank and strong barbels; by vibrating its swim bladder it makes a grunting sound. As a nocturnal bottom-dweller it shelters by day under wood and roots and searches at night for snails, insect larvae and detritus. The stout, serrated pectoral and dorsal spines can give a painful puncture wound when handled.

Frequently asked questions

How do you recognise the Bristly catfish?

The Bristly catfish has an elongate, eel-like body and is mainly brown. Bears sharp spines, plates or strong jaws that can cause cuts or puncture wounds; handle with care.

Where does the Bristly catfish live?

The Bristly catfish lives in fresh water and is mostly found around sand or mud bottom. South America: Bolivia, Brazil, Guyana

How big does the Bristly catfish get?

The Bristly catfish grows to a maximum of about 13 cm.

Is the Bristly catfish dangerous to humans?

The Bristly catfish can cause injury; handle it with care. For a cut or puncture from a sharp fin spine: rinse the wound with clean water, apply pressure to stop bleeding and cover with a sterile dressing. Check that no spine fragment remains and watch for signs of infection; for a deep wound update tetanus protection.

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All data

Identification

English name
Bristly catfish sourced
Scientific name
Amblydoras affinis
Family
Doradidae
Other names
Guaporé thorny catfish sourced

Appearance

Size class
Small verified
Max length (cm)
13.2 verified
Body shape
Elongated (eel-like) sourced
Dominant colour
Brown sourced
Tail shape
Forked inferred
Barbels
Yes sourced
Dorsal spines
Yes sourced

Habitat & distribution

Water type
Freshwater sourced
Substrate
Sand / mud bottom sourced
Natural range
South America: Bolivia, Brazil, Guyana sourced
Origin
Native inferred

Behaviour & biology

Territorial
No inferred
Activity
Nocturnal sourced
Reproduction
Separate sexes inferred
Sexual dimorphism
No inferred
Seasonality
Present year-round in its habitat; no pronounced seasonality known. inferred
Special features
Bears sharp spines, plates or strong jaws that can cause cuts or puncture wounds; handle with care. inferred

For anglers

Fishing method
Small in size and barely an angling target; mostly caught incidentally or as baitfish. inferred
Regulations source
FishBase ↗ inferred

Safety

Danger to humans
Can cause injury verified
First aid
For a cut or puncture from a sharp fin spine: rinse the wound with clean water, apply pressure to stop bleeding and cover with a sterile dressing. Check that no spine fragment remains and watch for signs of infection; for a deep wound update tetanus protection. sourced

Status & sources

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

More from the family Doradidae

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