Distribution Dynamics of Vegetative Cells and Cyst of Ceratium hirundinella in Two Reservoirs, Turkey

Authors : Elif TEZEL ERSANLI, Seda HASIRCI MUSTAK

Pages : 247-253

Doi:10.19113/sdufbed.99878

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Publication Date : 2017-03-27

Article Type : Research Paper

Abstract :The seasonal variation and vertical and horizontal distributions of Ceratium hirundinella insert ignore into journalissuearticles values(O.F.Müller); Dujardin and occurrence of its cyst form in Erfelek and Dodurga Reservoirs insert ignore into journalissuearticles values(Sinop, Turkey); were studied between August 2010 and July 2011. Our results showed that cyst form was observed with vegetative cells in phytoplankton. Ceratium hirundinella was recorded in high numbers in autumn/winter periods in these reservoirs. Winter conditions did not affect presence/absence of the species, but influenced the cell densities. Vegetative cells were observed mostly in lacustrine and transition zones, horizontally in two reservoirs and also cyst form was recorded in Erfelek Reservoir but not found in Dodurga Reservoir vertically. Dissolved oxygen had positive correlation with vegetative cells and also pH, conductivity and redox potential were important factors for vegetative cells and cyst occurrence.
Keywords : Ceratium hirundinella, Cyst, Distribution, Physicochemical properties, Reservoir