Scientific Name
Pseudoplatystoma tigrinum

Common Name
Tiger sorubim

Biology
Occurs in estuarine zones, mainly upstream of the first rapids up to the basin's headwaters. Nocturnal species which lives in the main bed of slow or fast zones, as well as in the flooded forests, particularly the juveniles., Opportunistic, piscivorous fish which may feed on crabs and shrimps. At the end of the dry season, they can migrate at the same time as their prey, then return at the end of the rainy season (Ref. 35381). Most important catfish in gill-net fisheries of Guapor? and Marmor? rivers.

Classification

Classified By

Valenciennes, 1840

Class

Ray-finned fishes (Actinopterygii)

Order

Catfish (Siluriformes)

Family

Long-whiskered catfishes (Pimelodidae)

Distribution

Region

South America

Distribution

South America: Amazon and Orinoco River basins.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

26 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; ; pH range: 6.2 - 7.2; dH range: ? - 20 demersal; potamodromous (Ref. 51243)

Trophic Level

4.5 s.e. 0.80 Based on diet studies.

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

130 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5156 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; gamefish: yes; aquarium: public aquariums

Vulnerability

High vulnerability (57 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (tm=5-8; tmax=18)

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated