Actinopteri (ray-finned fishes) > Cypriniformes
(Carps) > Danionidae
(Danios) > Danioninae
Etymology: Devario: Bangla/Bengali:‘debari’, local name for these fishes; also meaning ‘brother in law’ (Ref. 2031). More on author: McClelland.
Environment: milieu / climate zone / depth range / distribution range
Freshwater; pelagic; pH range: 6.0 - 8.0; dH range: 5 - 19; depth range - m (Ref. ), usually - m (Ref. ). Tropical; 22°C - 24°C (Ref. 1672)
Asia: India and Nepal to Indochina.
Size / Weight / Age
Maturity: Lm ?  range ? - ? cm
Max length : 15.0 cm TL male/unsexed; (Ref. 4832)
Body with blue stripes posteriorly (Ref. 12693).
Adults inhabit hill streams up to an elevation of 300 m (Ref. 4832). Found in shaded, mid-hill clear waters with pebble or gravel substrates (Ref. 11966). They occur in schools at the surface in small high-gradient upland streams (Ref. 12693). They feed mainly on exogenous insects (Ref. 12693) and also on worms and crustaceans (Ref. 7020). Not seen in markets, but popular in aquarium trade (Ref. 12693, 44325). Aquarium keeping: in groups of 5 or more individuals; minimum aquarium size 100 cm (Ref. 51539).
Life cycle and mating behavior
Maturity | Reproduction | Spawning | Eggs | Fecundity | Larvae
The fish spawn several times with small intervalls releasing 5-20 eggs each time (Ref. 1672). A prolific species laying over 1000 eggs (Ref. 7020).
Kullander, F.F., 2001. Phylogeny and species diversity of the South and Southeast Asian cyprinid genus Danio Hamilton (Teleostei, Cyprinidae). Ph.D. Thesis-Stockholm University, Department of Zoology. p. 1-26. Sweden, Stockholm University. Department of Zoology. (Ref. 38392)
IUCN Red List Status (Ref. 124695)
Threat to humans
Estimates based on models
Phylogenetic diversity index (Ref. 82805
= 0.5000 [Uniqueness, from 0.5 = low to 2.0 = high].
Bayesian length-weight: a=0.00457 (0.00175 - 0.01195), b=3.15 (2.92 - 3.38), in cm total length, based on LWR estimates for this (Sub)family-body shape (Ref. 93245
Trophic level (Ref. 69278
): 2.9 ±0.33 se; based on food items.
Resilience (Ref. 120179
): Medium, minimum population doubling time 1.4 - 4.4 years (Fec=300-1,000).
Vulnerability (Ref. 59153
): Low to moderate vulnerability (25 of 100) .