UTTAR PRADESH JOURNAL OF ZOOLOGY

The present experiment was conducted in circular FRP tanks kept indoor under polycarbonate house to provides information on the length-weight relationship and condition factors of Labeo rohita in aquaponics system. Aquaponics, an integrated system of aquaculture and hydroponics, has gained significant attention due to its sustainable and efficient nature. Understanding the growth dynamics and condition of fish within such systems is crucial for optimizing production and maintaining fish health. The length weight relationship were estimated by linear regression equation. The species exhibits positive allometric growth (b>3) with the values of condition factor (K) being greater than one, indicating the well-being of the species in its natural habitat. The water quality parameters were within the acceptable range for fish production. A fine mesh net is used to scoop fishes. The fish total length was measured from the anterior tip of the snout to the distal end of the caudal fin, and its weight was assessed using a precision single-pan electronic balance. Result shown that, the length-weight relationship of 900 experimental fish in aquaponics system with different stocking density shows that the treatment T₂ performed better than T₁ and T₃. L. rohita juveniles reared in experimental tanks exhibited positive allometric growth and in good condition of health. This growth pattern favours fish farming as it enhances its profitability. The values of ‘K’ ranged from 0.97-1.00 which depicted good condition of fish in these water bodies. These observed parameters were useful to evaluate the well-being of L. rohita population in the aquaponics system and provided useful information on fish biology for scientific management of fisheries.