Li, X L and Marella, T K and Tao, L and Dai, L L and Peng, L and Song, C F and Li, G (2018) The application of ceramsite ecological floating bed in aquaculture: its effects on water quality, phytoplankton, bacteria and fish production. Water Science and Technology (TSI), 77 (11). pp. 2742-2750. ISSN 0273-1223 (In Press)
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Abstract
In recent years, biological floating bed technology has been applied increasingly in aquaculture ponds. In this study we developed a novel floating bed made from ceramsite and studied its effect on water quality, phytoplankton, bacteria and fish growth. Water quality was effectively regulated and controlled in ceramsite floating bed (CFB) ponds with an average transparency of 23.18 cm, ammonia nitrogen (NH4+-N) of 2.30 mg L-1, total nitrogen (TN) of 5.09 mg L-1 and total phosphate (TP) of 1.32 mg L-1 which are lower than in control ponds without CFB. Increased phytoplankton species diversity, bacterial number, metabolic activity and microbial diversity was observed with CFB. At the end of growth stage, feed conversion ratio (FCR) was reduced with a total fish yield of 14,838 kg ha-1 at a survival rate of 77.2% in CFB ponds, which is significantly higher than control (P < 0.05). These results emphasize the potential of ecological floating bed to improve water quality, microalgal diversity, reduce the risk of harmful algal blooms and increase the number, activity and diversity of microorganisms as well as fish yield.
| Item Type: | Article |
|---|---|
| Divisions: | Research Program : Asia |
| CRP: | UNSPECIFIED |
| Uncontrolled Keywords: | aquaculture, ceramsite floating bed, fish pond, microorganisms, phytoplankton, water quality |
| Subjects: | Others > Water Resources |
| Depositing User: | Mr Ramesh K |
| Date Deposited: | 10 Dec 2018 08:40 |
| Last Modified: | 10 Dec 2018 08:40 |
| URI: | http://oar.icrisat.org/id/eprint/11007 |
| Official URL: | http://dx.doi.org/10.2166/wst.2018.187 |
| Projects: | UNSPECIFIED |
| Funders: | Central Public-interest Scientific Institution Basal Research Fund,CAFS, China Agriculture Research System |
| Acknowledgement: | This study was supported by the Central Public-interest Scientific Institution Basal Research Fund,CAFS (NO.2016PT08) and the earmarked fund for China Agriculture Research System (CARS-46). The authors would like to thank Dr. S. P. Wani, RPD-Asia and Director IDC, ICRISAT, Hyderabad for his encouragement and support. |
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