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

ABSTRACT:

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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