Unsustainable fishing practices, contribute to a continuous decline in marine fisheries ecosystem resources. However, a lack of understanding on how local systems can be used in fisheries management is evident in literature. This study used a systems-thinking approach to show how local fisheries management practices could be used to promote sustainability in Alappad, Kerala. Systems-thinking entailed understanding of the complex interdependent relationships between the economic, environmental and social factors of a fishery system. The first step involved conducting a systematic literature review and data extraction from peer review journals and official websites. These were analyzed using Excel and R. The second step involved the use of system thinking models comprising causal system dynamics and systems actor mapping to present complex information as interactive relationship maps. Findings highlighted the significance of collaborative decision-making procedures and the necessity of strong governance frameworks for efficient fisheries management. Thus, there’s a need to adopt co-management strategies that take into account practical and proactive knowledge of the fishery operations through effective research methods and local involvement in decision-making processes. This study contributes to the continuing discussion about sustainable fisheries management practices and offers policymakers, managers, and researchers a useful foundation for comprehending the intricate dynamics of the fisheries system in Alappad panchayat and creating effective management measures. These results would contribute to the sustainability of coastal communities and the fisheries on which they depend in Kerala and other regions throughout India and the world.