Seasonal variations in physicochemical parameters and fish diversity, population dynamics, species index, and IUSN status were investigated in this study; quantitative samples were collected monthly from January 2019 to December 2020 around the Kalpakkam coastal water in the Bay of Bengal (BOB). Water and sediment parameters are compared to fish diversity. The Zoological Survey of India confirmed the existence of 102 fish species collected along the coast, divided into two groups, 22 orders, and 56 families. Fish diversity was calculated in five villages using the species index, species richness, and Shannon-Weiner index, with Sadras kuppam having the highest and Mahabalipuram beach having the lowest. When the collected fish species were compared to the International Union for Conservation of Nature (IUCN) threatened lists, 46.08 % were determined to be the least concerned. When compared to physicochemical parameters and fish diversity, principal component analysis, and cluster analysis were found to be statistically significant. According to the study, strict conservation measures should be implemented to ensure the conservation and sustainability of fish diversity.
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Kantha Deivi Arunachalama (2022) studied this question.
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