Scientific Name
Pterodoras granulosus

Common Name
Granulated catfish

Biology
Nocturnal predator. Occurs in small groups. Feeds mainly on the fruits of Astrocaryum javary (Ref. 9084).

Classification

Classified By

Valenciennes, 1821

Class

Ray-finned fishes (Actinopterygii)

Order

Catfish (Siluriformes)

Family

Thorny catfishes (Doradidae)

Distribution

Region

South America

Distribution

South America: Amazon and Paran? River basins and coastal drainages in Guyana and Suriname.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

20 °C

Water Temperature To

24 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; ; pH range: 7.5 - ? demersal; potamodromous (Ref. 51243)

Trophic Level

2.55 s.e. 0.29 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

True

Physical Size and Genetics

Maximum Length

70.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.7500 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; aquarium: public aquariums

Vulnerability

Moderate to high vulnerability (52 of 100)

Resilience

Medium, minimum population doubling time 1.4 - 4.4 years (K=0.18)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated