Abstract：Significant changes have occurred at Arabian Gulf Coast of Saudi Arabia over the 8 last three decades. The area of mangrove was reduced by about 55%. Thus the economic, social, and 9 environmental value of mangroves must be assessed over short -to long-term scales and employ 10 these assessments for the awareness rising at local communities. This study provides a preliminary 11 assessment of the risks on mangrove vegetation; it will provide database to mitigate the tremendous