Sperata aor fish

Scientific Name-  Sperata aor (Hamilton & Buchanan, 1822)

English Name- Long wiskered cat fish

Local Name- Dariayai tengra


Class Osteichthyes
Sub-Class Actinopterygii
Order Siluriformes
Family Bagridae
Genus Sperata  Sperata
Species aor
Class Osteichthyes


Habits and habitat

It is found in Ganga, Sone, Gandak rivers and canals. Mostly found in river besin area. Also found in beels, chaurs, reserviors, lakes and tanks. This species is reported from Champaran, Muzaffarpur, Siwan, Vaishali, Sitamarhi, Buxar, Ara, Rohtas and Aurangabad districts of Bihar.

Salient features

Body is bluish above, gradually fading to whitish on flanks, and belly is milky white. A black spot is on the base and tip of the dorsal fin. Caudal fin is dark grey with the ligter background. It has four pairs of barbels and one maxillary pair extends to the back is very long. During day-time, the species is quite and not aggresive. It feeds on insects, fishes, worms, larvae, molluscs, crustaceans.

Sperata aor fish is carnivorous.It is fast mover and surface and column feeder. It is found in deep and flowing water with gravely and rocky bottom. This species always breeds in Sone and Ganga river in pre monsoon. It attains a length of 180cm. This specis is very big in group of this family. The fish is also used as food fish.



  • Central Inland Fisheries Research Institute, Barrackpore
Show Buttons
Hide Buttons