Abstract
Diatoms are autotrophic, photosynthetic, and eukaryotic microalgae belonging to phylum Ochrophyta. The main function of diatoms is to convert dissolved carbon dioxide to oxygen in water. In aquatic ecosystems, diatoms are primary producers. Presence of diatoms in rivers is very common and of equal importance. River health assessment is assessing the health and quality of river. Diatoms add up to nutritional status, can be used as biomarkers, and are usually dominating at higher altitudes and in upwelling regions. For long time, physical and chemical monitoring is being done for river assessments. River ecosystems are prone to threat by human activities causing moderations in sedimentation delivery, flowing patterns, and even biodiversity loss. Diatoms, being a good bioindicator for quality of water and land use, can be used as a potential to assess the health of a river. Diatoms respond with change in nutrient availability, concentration of ions, and organic loading.
Published Version
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