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Lobe-finned fishes

Setting up your tank

DIY Fish Tank Stand

250L community aquarium

Otuno (Olivaichthys viedmensis) fish species and information / pictures of Otuno - Olivaichthys viedmensis

Otuno (Olivaichthys viedmensis) fish species information

Scientific Name
Olivaichthys viedmensis

Common Name
Otuno

Biology
Dorsal spines (total): 2; Dorsal soft rays (total): 6; Anal spines: 4 - 5; Anal soft rays: 8 - 11; Vertebrae: 41 - 43

Classification

Classified By

MacDonagh, 1931

Class

Ray-finned fishes (Actinopterygii)

Order

Catfish (Siluriformes)

Family

Velvet catfishes (Diplomystidae)

Distribution

Region

South America

Distribution

South America: Negro River and tributaries in Argentina.

Range

Unknown

Environment

Climate

Subtropical

Water Temperature From

Unknown °C

Water Temperature To

Unknown °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

demersal

Environment

Freshwater; demersal

Trophic Level

3.4 s.e. 0.43 Based on size and trophs of closest relatives

Occurs in Marine / Salt water

False

Occurs in Brackish water

False

Occurs in Fresh Water

True

Occurs on Reefs

False

Is kept in Aquariums

False

Physical Size and Genetics

Maximum Length

32.4 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.6406 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Unknown

Vulnerability

Low to moderate vulnerability (30 of 100)

Resilience

Unknown

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated