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Cevdet Dundar pond is located between the Fatih Nature Park and Yozgat Pine Grove National Park boundaries in Yozgat where semi-arid climate prevails with cold-rainy winters and arid-dry summers. The pond serves as a main water source for local communities. However, limnologic studies have not been conducted in the pond until today. The aim of this study is to create a bathymetric map of the pond in order to determine usable volume, depth change and to conduct first preliminary limnologic study in the pond to create the necessary sub-study for future sustainability studies. Moreover, some physicochemical parameters (water temperature (°C), pH, dissolved oxygen (mg), saturated oxygen (%), conductivity (μS/cm), salinity (‰) and total dissolved solid (mg L-1)) were measured from the whole water column at 50 cm intervals for 11 months. Accordingly, a bathymetric map of the lake was created, total area and volume of the pond were calculated. According to results the maximum area of the pond was 29 536.7 m2 and volume of the pond was 225 209.59 m3. During the study period average dissolved oxygen and saturated oxygen were determined as 6.7 mg and % 72.4. While highest average water temperature was measured during the August (2018) with 17.7 °C, lowest temperature was recorded during March as 5.7 °C. Thermal stratification was observed in summer months. The difference in water temperature between the epilimnion and hypolimnion was changed between 10 -13 ℃. Anaerobic conditions were also measured in hypolimnion layer. Average of monthly pH, conductivity, salinity and total dissolved solid were calculated as 7.7 mg L-1, 176.7 μS/cm, 0.08 ppm, 88.1 respectively.

Evaluation of Some Physicochemical Parameters of Cevdet Dündar Pond (Yozgat/Turkey) Based on Bathymetric Map and Field Measurements