水産養殖研究開発ジャーナル

概要

Environmental Impact of Shrimp Culture at Gwatr Culture Site in Chabahar, Sistan-Baluchestan Province

Valiallahi Jalal

Present study carried out in Gwuatr shrimp culture Site and Gwatr Bay in east of Chabahar city, Sistan and Baluchestan province. In this project five stations including supply channel, drainage channel, valve outlet, estuary of Gwatr and the Gwatr Gulf were selected to determine physical and chemical factors such as temperature, salinity, dissolved oxygen, total phosphorus and total nitrogen and pH. Sampling conducted once during the shrimp culturing period and monthly at other times. The main objective of this study is surveying change in environmental condition because of biological and non-biological effluents of Gwatr shrimp culture site on coastal waters of Chabahar. We observed that there is a significant difference among chemical and physical factors between different stations (ANOVA, P ≤ 0.05). In conclusion although there was no thermal pollution in this site, but extending aquaculture activities increased the average of salinity and pH and pollutant in the drainage channels, so environmental health conditions needs to be controlled and monitored by the environmental experts, otherwise, present status may go to undesirable condition or state of emergency.