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The Biobrio 9(1 & 2), 2022

Study of Physico-chemical Factors and Seasonal Variation of Phytoplankton in Fish Pond, Machhali Ghar, Doranda, Ranchi

Akriti Gupta & Shashi Kumar Sinha


Phytoplankton forms the necessary component of aquatic ecosystem, and plays a vital role as
natural feed for the early life stages of various fish species. Occurrence of phytoplankton
communities in the water body depends on the various properties of water quality. Hence, it
absolutely necessary to understand the prevailing physico-chemical variations of water such
as temperature, pH, total hardness, and electrical conductivity, total dissolved solids, turbidity,
and dissolved oxygen etc. In this context, the present study was performed from July, 2020 to
June, 2021 at some selected sampling stations i.e., Nursery Pond, Rearing Pond and Stocking
Pond of the fish pond, Machhali Ghar, Doranda, Ranchi. Four main groups of phytoplankton
were identified at three sampling stations, during the investigation period. A total of 45 species
were observed, out of which 22 species from class Chlorophyceae, 10 species from class
Cyanophyceae, 11 species from class Bacillariophyceae and 2 species from class Euglenophyceae
were identified. Abundance of Chlorophyceae in different ponds indicates appropriate oxygen
level in the water body. The monthly variation of water quality parameters revealed favorable
range for the growth of phytoplankton

Keywords:    Chlorophyceae, Water, Physico-chemical factor, Phytoplankton

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