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VOL. 7, ISSUE 2 (2025)
Seasonal phytoplankton diversity and abundance at Eight Major Lakes of Pokhara valley
Authors
Md. Akbal Husen, Naresh Khanal, Alisha Basnet, Rabina Shahi
Abstract
This study investigated the phytoplankton species
diversity and abundance during pre-monsoon and post-monsoon season in eight
major lakes of the Pokhara Valley in Nepal. A total of 56 phytoplankton genera
belonging to eight classes were recorded, where Bacillariophyceae and
Chlorophyceae being the dominant groups. The phytoplankton density was
significantly higher during the pre-monsoon season compared to the post-monsoon
season across all lakes. Rupa lake was with higher (p<0.05) species richness
throughout both season. The Shannon-Wiener diversity index (H') ranged from
1.48 to 3.17, indicating moderate pollution levels in these lakes. The Pielou's
evenness index (J) was generally low, suggesting the presence of ecological
stress. The findings highlight the importance of phytoplankton as primary producers
and efficient bioindicators for assessing the water quality of these lakes. The
results also suggest that the abundance of phytoplankton in all the lakes is
suitable for the culture of planktivorous fishes.
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Pages:1-7
How to cite this article:
Md. Akbal Husen, Naresh Khanal, Alisha Basnet, Rabina Shahi "Seasonal phytoplankton diversity and abundance at Eight Major Lakes of Pokhara valley". International Journal of Ecology and Environmental Sciences, Vol 7, Issue 2, 2025, Pages 1-7
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