The main aim of the present study was to obtain a basic knowledge
of the hematology and biochemistry of the Red Sea seabream
Diplodus noct. The samples were collected from the Red sea at
Hurghada, Egypt. Baseline values for hematological parameters
including Red Blood Corpuscles (RBCs), Hematocrit (HCT),
Hemoglobin (Hb), Mean cell hemoglobin concentration (MCHC),
mean cell hemoglobin (MCH) and mean cell volume (MCV) and
biochemical parameters including AST, ALT, glucose, total protein
and urea were established. Erythrocytes, thrombocytes and three
types of leucocytes, lymphocytes, neutrophils and eosinophils, were
distinguished, characterized and measured. The morphological and
cytochemical aspects of peripheral blood cells of Diplodus noct
were studied by light microscopy. This investigation may be helpful
as a tool to monitor the health status of Diplodus noct and will grant
early detection of clinical pathology.