Asian bonytongue (Scleropages formosus) fish species and information / pictures of Asian bonytongue - Scleropages formosus

Asian bonytongue (Scleropages formosus) fish species information

Scientific Name
Scleropages formosus

Common Name
Asian bonytongue

Biology
Occurs in tannin stained blackwater streams. Found in forest covered streams including peat adjacent areas. Take around three months for free swimming fries. Young individuals feed on insects at the water surface, adults take fishes and smaller vertebrates. A mouth brooder, young about 6 cm at birth. Valued as an aquarium fish, its flesh commands a moderate price.

Classification

Classified By

M?ller & Schlegel, 1844

Class

Ray-finned fishes (Actinopterygii)

Order

Bony tongues (Osteoglossiformes)

Family

Arowanas (Osteoglossidae)

Distribution

Region

Asia

Distribution

Asia: Southern Myanmar to Malay Peninsula and Indonesia, eastern Thailand to Cardamon Range. International trade banned.

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

24 °C

Water Temperature To

30 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; benthopelagic

Trophic Level

3.88 s.e. 0.63 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

90.0 cm

Common Length

Unknown cm

Phylogenetic Diversity Index

PD50 = 0.5195 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: commercial; aquarium: highly commercial

Vulnerability

Moderate to high vulnerability (47 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (tm = 3-4; Fec = 50 (in concrete tanks))

Threat To Humans

Harmless

IUCN Red List Status

Endangered (EN)(A1cd+2cd)