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)