Abstract
A study was conducted on the seasonal variation in the plankton community and primary productivity was carried out in carp culture ponds in West Godavari district, Andhra Pradesh. The water temperature, DO levels, pH, Alkalinity, Total hardness and Ammonia, Carbon dioxide and transparency were found to vary between 24 0C and 37 0C, 3.0 ppm and 17.5 ppm, 6.0 and 8.0, 200 ppm and 780 ppm, 210 ppm and 800 ppm and 0.01 ppm and 0.04 ppm,6.7ppm and 338 ppm and 21.5cm and 5 cm in the respective farms at different locations. Among phytoplankton, Chlorophyceae (60,350 no./l) was dominated and among zooplankton rotifers (15,380 no./l) are dominated followed by copepods (6,230 no./l). The highest phytoplankton and zooplankton abundance was observed in summer and the lowest was in winter. Phytoplankton and zooplankton are positively correlated (R2= 0.77 and 0.76, respectively) in the different months and the ratio between Phytoplankton to Zooplankton was found to be 2.5: 1 which is favorable fish culture in the region.
Keywords:
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: Phytoplankton, Zooplankton, Productivity and fish culture
References
References:
APHA. 1989. Standard methods for the examination of water and waste water 17th Ed., American water works association, Am. Public health assoc., and Washington, D.C. pp: 1193.
APHA, 1998. Standard Methods for the examination of water and waste water American Public Health Association, 874pp.
Cramer, J.1984. Algae of the Indian subcontinent. Inder A.R. Ganter Verlag Kanmandit, gerellschaft.: 1- 445.
Sarita Kumari, Jawed Ahmed Khan and Mahender Singh Thakur. 2018. Study on Phytoplankton, Zooplankton and Ichthyo Fauna of Motia Lake. Research & Reviews: Journal of Zoological Sciences. 6; 25-49.
Mathivonam, V.P., Vijayan, S., Sabhanayakan and Jayachitra, O. 2007. An assessment of plankton population of Cauvery River with reference to population. J. Env. Biol., 28: 523-526.
Nedham, G.J. and Needham, P.R. 1962. A guide to the study of fresh water biology. Holden- Day Inc. Sanfrancisco, Constable and co. Ltd. London. pp1-106.
Piska, R.S., 2000. The present status of fisheries of Ibrahimbagh, a minor reservation of Hyderabad. Fishing Chimes, 20:41-43.
Plaskit, F.J.W. 1997. Microscopic Freshwater algae. Biotech books Delhi- 11003. pp. 1-278. Rao D.S.R. 2005. Strategies for enhancement of fish production from Indian reservoirs.
Fishing Chimes;25:86-90.
Rajashekhar A.V. 2007. et al. The studies on water quality parameters of a minor reservoir, Nadergul, Rangareddy district, Andhra Pradesh. J Aqua Biol;22:118-122
Siha, S. and Naik, M.L. 1997. Phytoplankton and Macrophytes in the ponds of Raipur city area. Pt. Ravishankar Shukala, University. Raipur. 1-163 p.
Yaswanth Kumar, J., S. Janardana Reddy1 and T. Suguna. 2020. Role of Plankton in Aquaculture. Int.J.Curr.Microbiol.App.Sci 9(9): 2848-2851.
Wetzel, R.G. 1975. Limnology, W.B. Sauders CO: Philadelphia pp. 743.
