Effect of short term (7 days) exposure to safe concentration of HgCl2 (0.5 ppm) and changes 7 days after withdrawl of the treatment on his ophysiologyof ovary and liver in yearlings of Cyprinus carpio were assessed during active phase of reproductive cycle. Noticeable degenerative histophysiological changes were observed in both ovary and liver after exposure which were more prominent in the gr...

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Juvenile common carp Cyprinus carpio were collected from 10 lakes with variable predator abundance over 4 months to evaluate if morphological defences increased with increasing predation risk. Cyprinus carpio dorsal and pectoral spines were longer and body depth was deeper when predators were more abundant, with differences becoming more pronounced from July to October. To determine if morpholo...

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Concentrations of Ag, Cu and Zn were studied in muscle and liver of Barbus plebejus, Cyprinus carpio and Leuciscus cephalus from Kilickaya Reservoir. The heavy metal analysis of samples were carried out by using a flame atomic absorption spectrophotometer. The mean heavy metal concentrations of Ag, Cu and Zn were obtained as 1.47±3.44, 1.65±3.31 and 2.89±4.52 μg/g in muscle and 1.78±4.19, 2.07±...

Isolation of Aeromonas hydrophila and Evaluation Its Pathological Effects on Koi Fish (Cyprinus carpio)

OBJECTIVE The aim of this study was identification of the parasites of the common carp from Tahtalı Dam Lake. METHODS The fish were transported live to the laboratory. They were investigated for ectoparasites and endoparasites. The parasite specimens were fixed and identified. RESULTS During the study, 47 common carp were caught monthly and 3 species of metazoan parasites were found: Dactyl...

Comparison of protein, fat, ash and dry matter content common carp, Cyprinus carpio L. silver Hypophthalmichthys molitrix fillet