Akademik Veri Yönetim Sistemi
FRESENIUS ENVIRONMENTAL BULLETIN, cilt.27, sa.7, ss.5173-5178, 2018 (SCI-Expanded)
We studied a variation in food consumption and the composition of the stomach contents of sand smelt, Atherina boyeri during the reproductive period from December 2009 to April 2010 in Karacaoren Dam Lake in Turkey. In this study, differences in feeding related to size and sex were examined. The diet composition of A. boyeri in Karacaoren Dam Lake includes 20 types of prey items. 12806 individual preys were counted from 190 A. boyeri examined. The main prey taxa in the diet of females and males of A. boyeri were Cladocera, Rotifera, Copepoda, and Odonata respectively. The main prey taxa in the diet of A. boyeri were Rotifera (61.82 %) Cladocera (24.40 %), Copepoda (11.79 %) and Odonata (1.14 %) respectively. Keratella cochlearis (61.09 %) represented the largest proportion of the diet followed by Bosmina longirostris (11.96 %), Cyclops sp (10.50%) and Ceriodaphnia quadrangula (9.38 %). Males (54%) had higher feeding intensity than females (46%). In Karacaoren Dam Lake, A. boyeri fed as the frequency of occurrence mainly on Bosmina longirostris (47.89%), Cyclops sp. (41.57%) and Keratella cochlearis (38.42 %). The fact that the species diversity for diet showed a homogeneous distribution in 5.0-5.4/5.55.9 and 6.0-6.4 length classes. Schoeners's Overlap index values, there was a high degree of consumed food between 5.0-5.4/6.0-6.4 (C-xy=0.86), 5.5-5.9/5.5-5.9 (C-xy =0.96), 5.5-5.9/ 6.0- 6.4 (C-xy = 0,82).