Yazar "Tekatli, Cagri" seçeneğine göre listele

Listeleniyor 1 - 2 / 2
  • [ X ]
    Öğe
    Elemental accumulation in the surficial sediment of Kesikkopru, cubuk II and Asartepe Dam Lakes (Ankara) and potential sediment toxicity
    (Taylor & Francis Ltd, 2021) Fikirdesici-Ergen, Seyda; Tekatli, Cagri; Gurbuzer, Pinar; ucuncu-Tunca, Esra; Ture, Hasan; Biltekin, Demet; Kurtulus, Bedri
    In this study, cubuk 2, Kesikkopru and Asartepe Dam Lake, were investigated. A total of 60 sediment samples were collected and the concentrations of 10 elements (Cu, Pb, Zn, Ni, Mn, Fe, Co, Cr, Al, As) were determined. The obtained findings were compared to the limit values for the sediment quality guidelines (SQGs) and were investigated using sediment assessment methods. The results indicate that the values for SQGs revealed that the concentrations of Ni and As should be emphasised. Toxic unit (TU) values showed that As and Ni together constitute 69.95-80.09% of the total toxic effect alone for all lakes. In addition, the Contamination factor (Cf) and Enrichment factor (EF) detected the concentration of As for Kesikkopru Dam Lake as being at a medium and higher accumulation levels, although the Geoaccumulation index (Igeo) detected that As leads to contamination below the medium level. When the total element accumulation was evaluated, no risk was detected for the lakes. Cluster analysis (CA) revealed quite different elemental profiles for 3 lakes. The strongest correlation between the elements was observed for Cu-Ni (r = 0.942) in cubuk 2, whereas cubuk 2 was the lake with the highest seasonal elemental variation among the lakes investigated.
  • [ X ]
    Öğe
    Zooplankton Fauna of High Mountain Lake: Sarincof (camlihemsin, Rize, Turkey)
    (Kahramanmaras Sutcu Imam Univ Rektorlugu, 2023) Gurbuzer, Pinar; Altindag, Ahmet; Tekatli, Gulsah; Tekatli, Cagri
    In this study, which carried out on Sarincof Lake on 13 July 2021, 27 species from Rotifera, 6 from Cladocera, and 3 from Copepoda, belonging to zooplankton groups were identified in a total of 36 species. Among the identified species, Rotifers were the dominant group with a rate of 51 %. This was followed by Copepoda 28.3 % and Cladocera 20.7 %, respectively. The identified species are the first record for Sarincof Lake, which is the subject of the study.