Due to the over fast development of industrial shrimp farming while the planning for environmental management is neglectful, almost industrial shrimp farming has not environmental treating system, resulting in environmental pollution has become an hardly resolvable problem, especially in coastal areas. The residues of fishery foods and the retention of medicaments used in fishery are the organic pollutant sources that spoil the habitat of mangroves leading to unbalancing their ecosystem and reducing their biodiversity. In order to overcome this status the Kien Giang province promotes the rehabilitation and protection of mangroves with extending the plantation of Avicennia marina (Forsk.)