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Effect of Stocking Density on Growth Performance and Survival of Brackish Water Fish Seabass (Lates calcarifer) in Floating Net Cages

Author: G. Ganesh, A. Chandrasekhara Rao, Gora Shiva Prasad, Sangram Keshari Rout and Sulav Mandal

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Abstract

The aim of the study was to determine the effect of stocking density on the growth performance and survival rate of seabass (Lates calcarifer) fingerlings in floating net cages and experiment was conducted at the closed bay near Suryalanka, Bapatla, Guntur, Andhra Pradesh. Triplicate group of sea bass with an average initial weight of 10.28±1.08g were stocked randomly in floating net cages (1m×1m×2m) at 4,6,8 and 10 fish/m3 designated as SD4, SD6, SD8 and SD10, respectively. The fish fingerlings were fed with a 35% CP formulated diet at 5% body weight twice daily. At the end of the experiment on the 90th day, the growth performance of the fish in terms of weight gain, specific growth rate, feed conversion ratio, protein efficiency ratio and survival rate were calculated. During the investigation period, better quality of sea bass were produced and water quality parameters were optimal in the cages with an average stocking density of 4 fish/m3.

Keywords

Cage culture, Brackishwater, Seabass, Stocking density, Growth

Conclusion

Asian seabass, Lates calcarifer, is a euryhaline, protandric hermaphrodite, carnivorous fish with a cannibalistic character. It is a relatively hardy species that tolerate crowding and has wide physiological tolerance, including high turbidity, varying salinities and temperature. The current study shows that the optimum stocking density for Seabass (Lates calcarifer) culture is 4/m3 in floating net cages. The cages stocked at 4 fish/m3 exhibited the optimum levels of Water quality parameters during the entire study period.

References

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How to cite this article

G. Ganesh, A. Chandrasekhara Rao, Gora Shiva Prasad, Sangram Keshari Rout and Sulav Mandal (2023). Effect of Stocking Density on Growth Performance and Survival of Brackish Water Fish Seabass (Lates calcarifer) in Floating Net Cages. Biological Forum – An International Journal, 15(6): 603-609.