Extensive field visits at Thengathittu Estuary and Mullodai Lagoon

Extensive field visits were conducted at Thengathittu Estuary and Mullodai Lagoon to document aquatic biodiversity, resulting in the photographic identification of over 70 different fish species across both sites. In parallel, an initiative was undertaken to assess the circular economy potential of water hyacinth in Bahour, Pillayarkuppam, Uchimedu, and Manapet lakes. Fresh hyacinth samples were collected using 1m x 1m quadrants from the four corners of each lake, weighed, then dried for a week on the terrace of Kalanjiyam, Bahour. Post-drying weights were recorded to establish biomass data, which forms the basis for evaluating the feasibility of converting water hyacinth into biochar, biogas, and compost. Additional ecological observations were made at M. Pudukuppam Lagoon, Suba Uppalavaadi Lagoon, Keezh Parikkalpattu Lake, Bahour Lake, and Kumaramangalam fields, focusing on bird species and associated fauna. A comprehensive community survey was conducted to understand local perceptions of ecosystem services and environmental degradation. This survey covered more than 400 respondents across villages located in the periphery of Bahour Lake, providing valuable insights into how communities interact with and are impacted by the surrounding wetland ecosystem.