Journal of Food, Agriculture and Environment

Coterie of phytoplankton in association with water quality from Auranga estuary, Gujarat, India


Shefali S. Patel, Susmita Sahoo

Recieved Date: 2021-07-11, Accepted Date: 2021-09-20


Diversity and abundance of phytoplankton from estuarine system have significant influence due to the water quality factors. A study on assemblage structure of phytoplankton with fluctuated physicochemical parameters in Auranga estuary (20.63’25" N and 72.82’23" E) Gujarat, India was carried out from January 2019 to December 2019. Fluctuation of organic and inorganic contaminations leads to changes in water quality but the dynamics and assemblage, and composition of phytoplankton have not been adequately drawn. The spatial and temporal variations in the coterie of phytoplankton was coupled with manifestation of environmental alternations. Forty four species of phytoplankton were recorded, 35 species from Site 1 (Divadandi Light House, Kosamba) and 24 species from Site 2 (Lilapore causeway). Among the dominant species were Nitzschia, Coscinodiscus, Prorocentrum and Ceratium at Site 1 and Spirogyra, Microcystis, Chlorella and Oscillatoria at Site 2. Diatoms dominated the phytoplankton community in winter, while blue-green and green alga co-dominated in summer. Phytoplankton diversity was maximal during the period of winter followed by summer and monsoon possibly due to the high contaminations of nourishing compounds in the estuary due to anthropogenic activities and low fluvial flux. During this case study, the water quality structure was revealed by principal component analysis up to 79% of influencing variability. Association between phytoplankton taxa and water quality variables revealed the water quality dependence of phytoplankton distribution in this estuarine belt.


Auranga estuary, phytoplankton, hydro-chemical variables, PCA, CCA

Journal: Journal of Food, Agriculture and Environment
Year: 2021
Volume: 19
Issue: 3&4
Category: Environment
Pages: 81-89

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