بررسي ميزان توده زنده كلروفيل a در دهانه رودخانه تجن

The Study of Chlorophyll a and Biomass in mouth of Tajan River

In this research, time and spatial changes of phytoplankton abundance as well as chemical and physical parameters were assessed and measured in Tajan estuary during a year .The amount of chl-a concentration showed significant seasonal changes which were 0.6 - 94 mg/m3. Diatoms (BaciUariophyta) were dominant groups in Tajan estuary region. The reduction of river flow in summer and the amount of water stability in this region were of effective and important agents in phytoplanktonic density in Tajan estuary. In addition, the amount of dissolved inorganic nitrogen was one of the remarkable factors in restricting the growth of phytoplankton.