Scientific Name– Rasbora rasbora
English Name– Scissors tail Rosbora
Local name- Dhawahee
Habits and habitat
Rasbora rasbora is found in tanks, ponds, reservoirs, chaurs, beels, floodplain area. It occurs in rivers and canals. It is found in flowing and standing water system with muddy and sandy bottom. Mostly found in Rohtas, Bhojpur, Aurangabad, Patna, Vaishali and other districts of Bihar.
It has greenish-white colour of the body, dorsal side of the body is olive brown and silvery colour below with a distinct blue black mid lateral stripe from head to base of caudal peduncle. The scales have grey edges. The male is slightly purple while the female is more greenish grey. Fins are clear and olive to yellowish in colour but caudal fin is sharply defined with hind margin. It attains a length of 7-8cm and
reported length is 13-20cm. They will mature and breed at the length of about 7.5cm. The eggs are adhesive in nature, are attached to the under side of the leaf. They are normally bred in November to February at a temperature range 20-250C. It requires slightly acidic water. It is fast mover. It feeds on aquatic insects, worms, shrimp, mosquito larvae and scraped fish. They move in groups. This species are depositing about 250 eggs on the leaves of the plant.
- Central Inland Fisheries Research Institute, Barrackpore