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Azza A.A. Galal, Rasha M. Reda, Amany Abdel-Rahman Mohamed. Influences of Chlorella vulgaris dietary supplementation on growth performance, hematology, immune response and disease resistance in Oreochromis niloticus exposed to sub-lethal concentrations of penoxsulam herbicide. Fish & Shellfish Immunology. 77, 445-456, 2018.

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Studies of Seasonal Algal Composition during Monsoon and Winter Seasons of the River Rupnarayan, West Bengal, India in Correlation with Some Physico-chemical Parameters

1Botany, Barrackpore Rastraguru Surendranath College, Kolkata

2Chemistry, Barrackpore Rastraguru Surendranath College, Kolkata


Applied Ecology and Environmental Sciences. 2022, Vol. 10 No. 3, 126-130
DOI: 10.12691/aees-10-3-8
Copyright © 2022 Science and Education Publishing

Cite this paper:
Suraj Sk, Monojit Ray. Studies of Seasonal Algal Composition during Monsoon and Winter Seasons of the River Rupnarayan, West Bengal, India in Correlation with Some Physico-chemical Parameters. Applied Ecology and Environmental Sciences. 2022; 10(3):126-130. doi: 10.12691/aees-10-3-8.

Correspondence to: Suraj  Sk, Botany, Barrackpore Rastraguru Surendranath College, Kolkata. Email: pu14bot@gmail.com

Abstract

This study is on seasonal algal composition in River Rupnarayan between June and December 2021 (monsoon and winter seasons). It is also studied the availability of algae present in the river Rupnarayan as a source of food for fishes specially Tenualosa ilisha. To study the water quality in relation with algal growth in the River Rupnarayan, some physicochemical parameters like pH, Conductance (µS/cm), Hardness (ppm), TDS (ppm), Dissolve Oxygen (ppm), Salinity(ppm), Turbidity (NTU), total Alkalinity (ppm), Biological Oxygen Demand (mg/l) were evaluated. Result showed a clear relation between physicochemical parameters and algal growth during monsoon and winter periods. Major group of algae recorded during observation were Chlorophyceae, Cyanophyceae and Bacilariophyceae. Species of Anabaena, Nostoc, Spirogyra, Chlorella,Chlorococcum, Oscillatoria were dominant in the rainy season and Diatoms in the winter season. The river water is slightly alkaline, have low salinity and low TDS. The river water contained adequate sodium, potassium and nitrate in monsoon and winter periods.

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