BREEDING CAPACITY OF FRESHWATER PRAWN Macrobrachium assamensis (Tiwari) IN RIVER SONG FROM DOON VALLEY, UTTARAKHAND, INDIA

Present paper deals with the breeding capacity of Macrobrachium assamensis from the River Song in Doon Valley (Uttarakhand, India), in relation to its body length, weight, ovary length, and ovary weight. The prawns ranged from 29 to 48 mm in length and from 372 to 2412 mg in body weight. The maximum breeding capacity was 80 for a prawn measuring 48 mm length and weighing 2412 mg with an ovary length of 15 mm and ovary weight of 215 mg. The minimum breeding capacity was estimated as 09 for a prawn measuring 29 mm length and weighing 372 mg with an ovary length of 07 mm and ovary weight of 64 mg. The breeding capacity was noticed to be dependent more on prawn ovary weight (r = 0.916) and prawn ovary length (r = 0.872) rather than the body length (0.843) and the body weight (r = 0.839).