01 Oca 2026 Perşembe
Comparative study on the diversity of aquatic insects in Panichayam Pond, Karattupalliara, and Kunnampilly Chira, Ernakulam District, Kerala
Abstract : This study investigates the influence of varying aquatic vegetation densities on the diversity and abundance of aquatic insects. Insect samples were collected from three freshwater sites in Kerala with distinct vegetation densities—sparse (Site A), moderate (Site B), and dense (Site C). A total of 55 insects representing 10 different species across multiple families were identified. The Shannon diversity index values indicated a positive correlation between vegetation density and species diversity, with Site C (dense vegetation) showing the highest diversity (H’ = 2.303). Key aquatic insect groups such as dragonflies, damselflies, stoneflies, and caddisflies were present, reflecting habitat quality and ecological richness. Findings suggest that higher vegetation density enhances habitat complexity, food availability, and water quality, thereby supporting greater aquatic insect biodiversity. These insights are valuable for freshwater biodiversity conservation and aquatic ecosystem management.