Iranian Journal of Fisheries Sciences
مجله علوم شیلاتی ایران
IJFS
Agriculture
http://jifro.ir
1
admin
1562-2916
10.18869/acadpub.ijfs
en
jalali
1390
7
1
gregorian
2011
10
1
10
4
online
1
fulltext
en
Comparison of different nitrogen compounds in three different environments of the Gwatar shrimp farms complex in the Gwatar Gulf region (Baluchestan-Iran)
Ecology
Ecology
پژوهشي
Orginal research papers
<p> This study aimed to investigate the quality of effluent water of a large shrimp farming complex in Chabahar region in Sistan and Baluchestan province (Iran). Fifteen sampling stations were designated in three distinct areas of these farms i.e. the water supply canal, the drainage canal and the receiving area of the farm effluents in Gwatar Gulf. Water samples were taken from June to December 2004 for measurement and monitoring of nitrate, nitrite and ammonia compounds. The results revealed that the shrimp farms effluents have a profound effect on the water quality and aquatic environment of the drainage canal and the Gwatar Gulf. The average concentration of nitrate, nitrite and ammonia remained considerably higher in the drainage canal and Gwatar Gulf compared to the supply canal throughout the study. The amount of these compounds increased considerably in the drainage canal during the final stages of culture period and in Gwatar Gulf at post monsoon. The results of one way analysis of variance (at P<0.01 level) showed that all physical and chemical factors except water temperature were significantly different between stations. Considering that more than 25% of the shrimp farms of this complex were active during this study the measured values of nitrate, nitrite and ammonia compounds in the effluents were at the optimum range recommended for the shrimp farms. </p>
Aquaculture, Shrimp farming, Effluent, Monsoon, Nutrient, Gwatar, Environmental impact
663
677
http://jifro.ir/browse.php?a_code=A-10-1-123&slc_lang=en&sid=1
S.
Khodami
Shkhodami@yahoo.com
10031947532846001850
10031947532846001850
Yes
G.
Attaran-Fariman
10031947532846001851
10031947532846001851
No
J.
Ghasemzadeh
10031947532846001852
10031947532846001852
No
M. S.
Mortazavi
10031947532846001853
10031947532846001853
No