Scientific Name
Pseudauchenipterus nodosus

Common Name
Cocosoda catfish

Biology
Dorsal spines (total): 1; Dorsal soft rays (total): 6; Anal spines: 0; Anal soft rays: 20 - 25. Body is thick compared to that of Auchenipterus. Snout is very rounded, with a recessed lower jaw. The moderately large eyes are lateral in position. The zigzag lateral line is complete. The branchiospines are short and numerous. The caudal fin has 17 spines (Ref. 35381).

Classification

Classified By

Bloch, 1794

Class

Ray-finned fishes (Actinopterygii)

Order

Catfish (Siluriformes)

Family

Driftwood catfishes (Auchenipteridae)

Distribution

Region

South America

Distribution

South America: Lower reaches of rivers and into estuaries from Venezuela to Brazil, at least to Bahia, including southern Trinidad.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

20 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; brackish; ; pH range: 6.5 - 8.0; dH range: ? - 30 demersal

Trophic Level

2 s.e. 0.00 Based on food items.

Occurs in Marine / Salt water

False

Occurs in Brackish water

True

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

22.0 cm

Common Length

25.0 cm

Phylogenetic Diversity Index

PD50 = 0.5625 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: minor commercial; bait: usually

Vulnerability

Low vulnerability (17 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated