UTTAR PRADESH JOURNAL OF ZOOLOGY

The relationship between length and weight, as well as regression analysis, of five prevalent and edible fish species based on 550 samples (n=110 per species) using standard LWR regression were meticulously analysed from June 2020 to May 2022 within the Karingali wetland located in the Alappuzha and Pathanamthitta districts. The species studied include Etroplus suratensis, Channa striata, Wallago attu, Anabas testudineus, and Heteropneustes fossilis, all of which exhibited b-values ranging from 2.35–2.79." indicating a characteristic of negative allometric growth in these fish species. Negative allometry suggests ecosystem stressors, urging conservation measures. The growth patterns of these fish are influenced by a multitude of factors, including angling pressure, environmental conditions, physicochemical parameters, the age of the fish, and pollution, among others. This investigation serves as the inaugural reference regarding the length-weight relationship pertinent to this specific wetland. Although the Karingali wetland is not severely polluted, it is nearing a state of contamination. Human activities, particularly the application of agricultural pesticides and fertilizers, along with excessive reclamation and pollution from various sources, are contributing to the degradation of wetlands and the erosion of their original characteristics. Consequently, the decline in biodiversity may soon result in a scarcity of essential food sources and water. To effectively protect our wetlands and sustain wildlife for future generations, it is imperative to comprehend the current circumstances. The conservation of fish diversity is essential for maintaining ecological, nutritional, and economic equilibrium.