Assessment of Plankton Community on Freshwater Fish Production in West Godavari District, Andhra Pradesh

Authors: Mr. Deepak Kumar, Dr. Anirudh Poswal

Country: India

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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./1). 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: Phytoplankton, Zooplankton, Productivity and fish culture

Paper Id: 231089

Published On: 2023-12-06

Published In: Volume 11, Issue 6, November-December 2023

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