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Hydrobiological studies of freshwater resources from Kerala, India
  • Athira S.,
  • Anuja J,
  • Vijayakumar K. K
Athira S.
PSG College of Arts and Science

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Anuja J
PSG College of Arts and Science
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Vijayakumar K. K
Kandaswami Kandar's College
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The present investigation aims to evaluate the algal diversity and water quality status of four different freshwater resources. The study areas were two paddy fields in Thalakkulathur and two natural ponds in Kayanna, Kozhikode district, Kerala, for six months, from August 2022 to January 2023. The samples were collected according to standard procedures at various sites in the study area. During the collection, physical and chemical parameters were analyzed using the collected water samples separately in PET bottles. The observation and documentation of algae were done using the LABOMED Binocular Microscope Lx 400 and photographed using a Sony Cybershot Camera. Different algal species like Nostoc linckia, Oscillatoria annae, Chrococcus indicus, Anabaena sphaerica, Gloeocapsa rupestris of Cyanophyceae; Spirogyra baileyi, Chlorella vulgaris, Oedogonium cardiacum, various species like Cosmarium nitidulum, Staurastrum sp., Botryococcus braunii, Eudorina elegans, Selenastrum gracile, of Chlorophyceae; Rhodomonnas salina, Phacus manginii from Euglenophyceae, various species of Navicula, Gomphonema, Cymbella, Amphora pediculus, Hantzschia amphioxus, Fragillaria capucina from Bacillariophyceae, and Mishococcus confervicola from Xanthophyceae were found. Both terrestrial and aquatic plants present in the study area were also noted. The Shannon-Wiener index, Menhinick index, Nygaard’s index, Boyd’s index, and Palmer pollution index were evaluated using Hemocytometer readings.