Scientific Name– Rasbora daniconius
English Name– Darkline Rasbora
Local name- Suti dhawahee
Habits and habitat
Rasbora daniconius fish is found in beels, chaurs, tanks and floodplain area. It occurs in rivers and canals with hard bottom. Also found in ditches, pools and stream. Inhabits in lotic and lentic water system. The species is recirded in Champaran, Muzaffarpur, Vaishali, Sitamarhi, Rohtas, Buxar, Ara, Aurangabad and other districts of Bihar. The fish is found in abundance around the degrading leaf litters, bushes, branches and aquatic weeds.
It is not a colourful species. The body has greenish white colour with blue-black central body stripe, delicately edged above and below by a thin metalic golden line. Back is olive and belly is white. The fins are tinged with yellow. A norrow stripe on the body just above the anal fin is dark. The female is bigger in size than male. It is fast mover and hardy and active. It is attractive and well known aquarium fish and feeds on insects, plant matters, daphnia, mosquito larvae, etc. In the absence of these, an occasional bit of minced earthworm or scraped fish is acceptable.
This fish has large eggs, many of the eggs fall to the bottom and get destroyed. The young ones vary greatly in size and should be sorted out to prevent cannibalism. It prefers temperature of 20-250C and pH 6.5. Breeding is not attempted in capative condition. This species is in high demand in international market. The fish is well suited for being kept in aquarium due to it’s small size. It attanis a length of 13cm but normally found between 7-8 em.
- Central Inland Fisheries Research Institute, Barrackpore