Reduction of fish species.The impact of years per fish that are not forecasted, however, is the abundance of fish and fish yields decrease an alarming rate. Family income decreases, and the fishermen, the fishermen must change the profession. The changing fishery patterns. Food costs rising of villagers and causing economic and social effects of the city followed. Pak Mun dam affect aquatic biodiversity and associated with an abundance of all fish populations above and below the dam, the dam's reservoir has flooded years and destroy critical fish spawning sources include various islets.
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