SOME METABOLIC INDICES AND MORPHOMETRIC PARAMETERS BETWEEN SEXES IN SALMO LETNICA FROM OHRID LAKE

Eight metabolic indices and four morphometric parameters of Salmo letnica Karaman, 1929, in natural conditions from Ohrid Lake have been analyzed. The aim of the study was to evaluate the differences between sexes. The study has been carried out during the period 2006-2008 (summer and winter) in Pogradec area, near Ohrid Lake (Lin, Pojskë, Piskupat, Zagorçan and Tushemisht) and 94 healthy individuals of fish, randomly collected were involved in the study. Higher values of hematocrit, hemoglobin, cholesterol, inorganic phosphorus and glucose were observed in male individuals. Higher values of total protein, calcium, alkaline phosphatase and morphometric parameters (total body weight, maximal length, length till the tail bifurcation, length till the end of scales and maximal body height) were observed in females. Statistically significant differences have been found for the mean values of the level of hematocrit, hemoglobin, the activity of alkaline phosphatase and the four morphometric parameters between sexes; whereas the other metabolic indices (total protein, inorganic phosphorus and glucose) showed no significant differences.