Abstract
In this study, the blood parameters of catfish (Silurus glanis Linnaeus, 1758) inhabiting Çelik Lake were investigated.
The study was conducted January 2012 to December 2012. After obtaining a blood sample from each fish has been
hematological analyses; then, if the fish age biological characteristics such as length, weight and sex, have been
identified. In blood samples haematocrit, leucocrit amount of erythrocyte and leukocyte counts, haemoglobin values,
the mean corpuscular volume (MCV), mean corpuscular haemoglobin (MCH) and concentration (MCHC) values of
mean corpuscular haemoglobin were determined. The distributions of these findings according to age, length, and
weight groups with sex of fish were examined.