AGE DETERMI ATIO ND GROWTH STUDiES 0 THE BARBU BYNNJ, FORSK. OF THE NOZHA HYDRODROME.

AGE DETERMI ATIO ND GROWTH STUDiES 0 THE BARBU
BYNNJ, FORSK. OF THE NOZHA HYDRODROME.
ABSTRACT
The ages of Barbus bynni in the Nozha hydrodrome were determined and its growth rates were computed from the examination
and .measurement of scales, collected during two sampling periods
(1956-1961 & 1967-1970). It was found that the body length –
scale.length ratio is not constant throught the life of the fish. For
this reason, Vovks method was used in the study of its growth
rates. The growth in length was found to be high during the first
and second years,while the growth in weight considerably increases
during the third and fourth years of life. The study of the lengthweight relationship shows that the value of tbe exponent «n» increases to a power more than the cube of length which indicates that
the body sbape changes rapidly as the fish grows in length .