Scientific Name
Oryzias javanicus

Common Name
Javanese ricefish

Biology
Dorsal soft rays (total): 6-7; Anal soft rays: 20 - 25; Vertebrae: 28 - 29. Principal caudal fin rays 5/6.

Classification

Classified By

Bleeker, 1854

Class

Ray-finned fishes (Actinopterygii)

Order

Needle fishes (Beloniformes)

Family

Ricefishes (Adrianichthyidae)

Distribution

Region

Asia

Distribution

Asia: Indonesia, Singapore, Malaysia, Thailand (Ref. 27658). Recorded from the Mekong (Ref. 12693).

Range

Unknown

Environment

Climate

Tropical

Water Temperature From

22 °C

Water Temperature To

25 °C

Depth From - meters

Unknown m

Depth To - meters

Unknown m

Zone

benthopelagic

Environment

Freshwater; brackish; ; pH range: 7.5 - 8.5 benthopelagic; non-migratory

Trophic Level

3.36 s.e. 0.45 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

True

Physical Size and Genetics

Maximum Length

4.5 cm

Common Length

3.0 cm

Phylogenetic Diversity Index

PD50 = 0.5000 many relatives (e.g. carps) 0.5 - 2.0 few relatives (e.g. lungfishes)

Human Uses and Population

Human Uses

Fisheries: of no interest; aquarium: commercial

Vulnerability

Low vulnerability (10 of 100)

Resilience

Low, minimum population doubling time 4.5 - 14 years (Assuming fec

Threat To Humans

Harmless

IUCN Red List Status

Not Evaluated