DEPENDENCE OF DIAMETER OF WHITEFISH HYDRATED EGGS ON THE WATER PH
The purpose of this research is to assess dependence of the diameter of whitefish eggs on the pH of water used for hydration. The research was conducted with ovulated eggs of Coregonus nasus, C. muksun and lake form of C. peled. As a result of our research we determined that there is close positive connection between the diameter of hydrated eggs of the fish species in question and the water pH. Diameter of the C. nasus eggs within the pH range from 5.5 to 9.5 units being covered changed from 2.38 to 3.40 mm, diameter of the C. muksun eggs changed from 2.22 to 2.56 mm and diameter of the C. peled eggs changed from 2.14 to 2.23 mm.