Md. Kaishar Alam* & Arun Kumar
University Department of Zoology, B.N. Mandal University, Madhepura, Bihar, India
Received : 30thMay, 2023 ; Revised : 30th June, 2023
DOI:-https://doi.org/10.5281/zenodo.13346240
Abstract– Phytoplankton study was conducted in river Gahari of Phulaut, Madhepura district during March-2019 to February- 2020. Frequency and abundance of phytoplanktons were recorded. Altogether, 6 genera and 8 species were identified from Cyanophyceae, 11 genera and species from Chlorophyceae, 3 genera and 4 species from Euglinophyceae and 9 genera from Bacillariophyceae. Abundance of phytoplankton was maximum during the month of May and minimum during the month of December. In Chlorophyceae, maximum frequency was observed in Hydrodictyon reticulatum and Chlamydomonas angulosa (46.66%). Among Cyanophyceae, maximum frequency was observed in Oscillatoria tenuis (53.33%). In Euglinophyceae, maximum frequency was observed in Euglina polymorpha and in Bacillariophyceae, maximum frequency was observed in Arthrodesmus (53.33%).
Key words: Abundance, Frequency, Chlorophyceae, Cyanophyceae, Euglinophyceae, Bacillariophyceae
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