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Armado (granulated catfish) (Pterodoras granulosus)
🐟 Wildlife of the Iberá

Armado (granulated catfish)

Pterodoras granulosus

The armored fish of the Iberá. The sides of its body are protected by bony plates with sharp, curved spines. When taken out of the water it emits an audible grunt from the friction of its bones.

Its body is robust and elongated, of a mottled dark gray color. Instead of common scales, the sides are protected by a row of hard bony plates fitted with backward-curved spines that work as a true armor. It has three pairs of barbels at the mouth and sharp spines on its pectoral and dorsal fins that it can lock mechanically to defend itself. When taken out of the water it emits a strident, grunt-like sound, caused by the friction of its pectoral bones. Length: 40 to 60 cm. Weight: 2 to 4 kg.

Behaviour

An omnivore and all-terrain cleaner. It rakes the bottom with its sensory barbels, searching for fruit fallen from riverside trees, seeds, snails, organic remains and small crustaceans. Markedly crepuscular and nocturnal in habit.

How and when to see it

Year-round. Very easy to observe swimming near the docks, walkways or in calm bays at dusk, searching for food near the shore.

Where to see it in the Iberá

The gateways of the Great Iberá Park where armado (granulated catfish) has confirmed presence:

Tours to see it

Verified providers operating at the gateways where armado (granulated catfish) lives. You contact them directly on WhatsApp from the app.

Species profile

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