International Journal of Fisheries and Aquatic Studies
2020, Vol. 8, Issue 6, Part B
Spotted snakehead, Channa punctata (Bloch, 1793), stocking density effects on water quality, live food, and growth performances in Indian major carp polyculture system
Author(s): Md. Nahid Hossain, Mst Rubia Banu, Md. Reazul Islam, Farhana Haque and Md. Amzad Hossain
Abstract: Experiment conducted to examine the effect of stock densities of
Channa punctata on water quality parameters, live food production, and growth performance in Indian major carps polyculture system at 12 earthen ponds (area: 200 m
2, 1.5 m depth) for 120 days. Stocking densities of
C. punctata, 0 (T
1), 2000 (T
2), 3000 (T
3), and 4000 (T
4) individual ha
-1 and rohu (Labeo rohita), silver carp (
Hypophthalmichthys molitrix), catla (
Catla catla), and mrigal (
Cirrhinus cirrhosis) at the constant rate of 3000, 2500, 2000 and 2000 individual ha
-1, respectively with three replications. The mean initial weight of spotted snakehead and carps fingerlings were 1.50±0.07 g and 7.86±0.03 g, respectively; fingerlings fed commercial pellets twice daily. Water quality parameters were significantly different in all treatments. Zooplankton and benthos decreased with increasing stocking density of fish. The mean specific growth rate of carps was not significantly different with and without
C. punctata. Food conversion ratio was low in T
1, while fingerlings survivability range was 67% to 89% in all treatments. The gross production of
C. punctata in T
3 was the highest (143.53 kg ha
-1) followed by T
4 (123.26 kg ha
-1), and T
2 (97.66 kg ha
-1). The combined total production of spotted snakehead with carps was the highest in T
2 (1836.95 kg ha
-1) compared with T3 (1760.53 kg ha
-1), T
1 (1806.18 kg ha
-1), and T4 (1621.46 kg ha
-1). Overall, maximum yield of T
2 reflected proper feed utilization and appropriate species combinations.
Pages: 116-122 | 930 Views 356 DownloadsDownload Full Article: Click Here
How to cite this article:
Md. Nahid Hossain, Mst Rubia Banu, Md. Reazul Islam, Farhana Haque, Md. Amzad Hossain. Spotted snakehead, Channa punctata (Bloch, 1793), stocking density effects on water quality, live food, and growth performances in Indian major carp polyculture system. Int J Fish Aquat Stud 2020;8(6):116-122.