Department of Fisheris, Faculty of Natural Resources, University of Sari, Sari
Abstract
In this study, the effect of changes in chemical and physical factors such as salinity, water temperature, soluble oxygen, electrical conductivity (EC) and total soluble solids (TDS) on nutrients (nitrate and phosphate) in two seasons of winter 2014 and spring of 2015 in three study stations In the Caspian Sea, two different depths of 2 and 5 meters were investigated. Maximum nitrate content (μg/L) was at station 3 and in spring (1.7 ± 0.208) at a depth of 5 m and the highest amount of phosphorus was in spring 3 at station 3 with a mean of 0.88 ± 0.136 μg/ L at a depth of 5 meters. The maximum values of temperature, salinity, EC and TDS were also observed in spring, but the maximum amount of oxygen dissolved in winter at depths of 2 m. In this study, there was a positive correlation between the amount of nitrate and phosphate with all the physical and chemical properties except for the dissolved oxygen in the spring, but a negative correlation between these nutrients was observed with different depths.
Haji, A., Khalesi, M. K., & Khalili Jani, K. (2018). Investigating the effect of seasonal changes in physical and chemical parameters on nutrients in the south coast of the Caspian Sea. , 6(2), 62-69.
MLA
Asiyeh Haji; Mohammad Kazem Khalesi; Khosro Khalili Jani. "Investigating the effect of seasonal changes in physical and chemical parameters on nutrients in the south coast of the Caspian Sea". , 6, 2, 2018, 62-69.
HARVARD
Haji, A., Khalesi, M. K., Khalili Jani, K. (2018). 'Investigating the effect of seasonal changes in physical and chemical parameters on nutrients in the south coast of the Caspian Sea', , 6(2), pp. 62-69.
VANCOUVER
Haji, A., Khalesi, M. K., Khalili Jani, K. Investigating the effect of seasonal changes in physical and chemical parameters on nutrients in the south coast of the Caspian Sea. , 2018; 6(2): 62-69.