Identifying and counting zooplanktons and crustaceans in water of Karun River, Ahvaz city, Iran
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Karun River has an important role in the lives of citizens in Ahvaz, especially those in the agricultural sector. Unfortunately, lack of any water management plans and the rather less attention paid to pollution have reduced water quality in this river. Given the importance of the ecological balance of the river, and considering the precise status of river water quality, the present study was aimed to identify and count the zooplanktons and crustaceans living in this river. In this study, sampling was done in two seasons (autumn and winter) at three stations. According to our findings, the most common types of zooplanktons were Monhystera simolis, Limnodrilus hoffmeister, Dero obtusa, and Rotaria rotatoria. The most common types of crustaceans were Daphnia magna, Monospilus dispar, and Alona costata. In addition, the measured BOD5 was greater than the standard index for water quality in Iran’s aquatic ecosystems in all sites during winter and autumn. The temperature crossed the standard limitation in winter, but the measured pH was within the standard range (6–9). Results of this study showed sewage-induced pollution in Karun River. Consequently, there is an urgent need to control sewage discharge to the Karun River.
KeywordsKarun River Water pollution Crustaceans Zooplanktons
The authors of this article are thankful to and acknowledge the support of the Student Research Committee of Ahvaz Jundishapur University of Medical Sciences for their financial support. Research file number of this study is 93S116.
This study was funded by Student Research committee of Ahvaz Jundishapur University of Medical Sciences (grant number 93S116).
Compliance with ethical standards
Conflict of interest
All authors are members of the Student Research Committee of Ahvaz Jundishapur University of Medical Sciences. They have received research grants from this committee. Abdolkazem Neisi is also a member of the Environmental Technologies Research Centre of Ahvaz Jundishapur University of Medical Sciences. Heidar Maleki has done some research in Air Pollution and Respiratory Diseases (APRD) research center of Ahvaz Jundishapur University of Medical Sciences.
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