Loss of Traditional Knowledge, Loss of Culture and Livelihood: A Case of Urak Lawoi Sea Nomadic People in the Andaman Sea Supin Wongbusarakum Ph.D. in Geography at the University of Hawai'i at Manoa on coastal and marine resource management and developmental studies, Supin Wongbusarakum is currently Deputy Investigator on a UNESCO and NOAA co-funded project: “A Place for Indigenous People Living in Thailand’s Andaman Sea Marine Protected Areas”. She is also International Collaborator for Thailand in a NSF-funded project: “Factors affecting human behavioral response to natural warning signs of tsunamis: The case study of the December 26, 2004 Earthquake”. The presentation focuses on the transmission of knowledge about marine life and coastal environment among the Urak Lawoi, a formerly semi-nomadic sea people in the Andaman Sea, Southwest Thailand. It examines the losses of knowledge and skills due to the disruption and discontinuation of traditional practices and the advent of new choices of livelihood associated with commercial fishery and tourism industries Traditionally, the Urak Lawoi had permanent houses on land but were nomadic in their food foraging practices, especially during the dry season when for several months the entire families traveled to different places in the archipelago. Nomadic foraging enabled them to optimize their use of different resources, adapt to the productivity changes within their natural ecosystems, and maintain their sustainability. Successfully fishing and foraging with simple tools requires detailed local and situated knowledge of the weather, the sea, and the natural environment that is best acquired by daily practice and experience. For generations, such knowledge was transmitted from the elder to the younger by sea traveling, living, and foraging for food together at different sites in the archipelago. When the archipelago became part of a national marine park established in 1974, this traditional semi-nomadic lifestyle came to be legally restricted. At the same time, problems with enforcing park rules and regulations allowed large-scale, technologically advanced commercial fishing and mass tourism development to proliferate. These industries now offer means of livelihood differing radically from the traditional subsistence way of life of the Urak Lawoi. They have also begun altering the epistemic foundations of Urak Lawoi life. Because the Urak Lawoi language is not a written language, traditional knowledge is transmitted through inter-household and intra-generational interactions and practices. Learning is first-hand and experiential. Unless this kind of learning continues and/or knowledge transmission is facilitated by other methods, it will be difficult to maintain the depth and breadth of indigenous knowledge The presentation will conclude by making suggestions on ways to facilitate the transmission of indigenous knowledge in the present context, including: the integration of locally related subjects in the school curriculum; empowering the elders as informal teachers; facilitating school students and younger people to become researchers of their own culture and environment; and, where possible, help perpetuating the indigenous knowledge by publishing it in written languages.