... jobs for the factories,emigration becomes a norm, and the demographic structure is distorted.Economic importance of fisheries Fisheries are an important factor in the economy of the Thai Mekong ... According to the Office of Environmental Policyand Planning (OEPP), the 8,667 rivers, rivulets, and canals; 6,751 swamps and reservoirs;463 wetlands and lowlands; and 161 other types of water ... value of the fisheries. The fishing village near Pak Mun Dam, many of whose inhabitants depend on fishing fortheir livelihood, provides a good example of the importance of fisheries to the economy...