Akyatan Lagünü (Karataş, Adana) Diyatom ve Dinoflagellat Topluluklarının Zamansal Değişimi

Lagoon areas are sensitive ecosystems that are highly affected by the physical and chemical
\nenvironmental conditions of the surrounding area. In this study, temporal changes of diatom and dinoflagellate
\ncommunities and some physicochemical parameters were investigated in Akyatan Lagoon, located in the Karataş
\ndistrict of Adana. In this context, water samples were collected from 6 selected stations within the lagoon during
\nApril 2015-January 2016 period. Nutrient values such as nitrite+nitrate, phosphate and silicate showed
\nconsiderable fluctuations in the lagoon, and due to the drainage canal and other terrestrial inputs, have reached
\nquite high levels. When the seasonal distribution of diatom and dinoflagellate abundances in the lagoon was
\nexamined, the diatom abundances varied between 0.04x105 cells l-1
\nand 21.23x105 cells l-1
\n. The lowest diatom
\nabundance was observed in January 2016 where the highest abundance was observed in October 2015. The
\ndinoflagellate abundance in the lagoon varied between 0.28x105
\ncells l-1 and 80.55x105
\ncells l-1
\n. The lowest
\ndinoflagellate abundance was detected in January 2016 and the highest abundance was detected in April 2015.
\nDinoflagellates were more abundant than the diatoms in the Akyatan Lagoon. It was deduced that the high levels
\nof nutrients in the environment is influential on diatom and dinoflagellate abundance to reach very high levels.