Assessment of environmental risk caused by shrimp farming activities in Hormozgan province (Based on studies conducted in the Tiab Area)

With the arrival of large amounts of effluent during the one period from aquaculture into coastal ecosystems, it can introduce large amounts of pollutants into coastal waters during each breeding period. A review of recent studies in the region shows that the changes in phosphate levels, total suspended solids and BOD levels in the effluents were beyond the scope of the environmental standard. The results of the organic load estimate showed that, during a breeding period, with a minimum of 5% water replacement, approximately 500 tons of soluble Dissolved inorganic nitrogen and 25,000 tons of soluble phosphate entered the Enter the waters of the Tiab estuary through effluents. Therefore, it is suggested that by creating sedimentation ponds (to reduce suspended solids), build a biological treatment system (to reduce nutrients), define environmental standards permissible limited necessary for effluents to enter coastal waters and revision the management of Shrimp farms, from any Effects and environmental risks associated with aquaculture activities in coastal ecosystems be avoided.