O. G. Dely szerk.: Vertebrata Hungarica 4/1-2. (Budapest, 1962)
Tusnádi, Gy.: The allometrical research of quantitative qualities of Rhodeus sericeus amarus (Bloch) 1-11. o.
Compared to body length changes quicker with 252,5% and shows very large changing speed, ^he one unit change of logarithm of body length ©all forth the logarithm of body weight with 3,5250 change 0 I got the same high developmental speed to the change of cubic capacity of body. I have to say, that for the cubic capacity of body I mean not the real cubic capacity but the cubic capacity of that prism what I get with the multiplication of body length, of body height and of body width« That big speed change of body weight, and of cubic capacity of body justifiable by the form of fish, because the examined species got a short and high back. In view of that the changes of the increase of weight , and of cubic capacity can be on dependence not specially of change of body length, but of other facts too, also the high speed change of body height, understandable, that the small change of body length call forth the big change of body weight and of cubic capacity of body, becauee simultaneausly other growths of measurement are also control them. In follows we shall see, how much controls the change of body weight by the linear measurements. Measurements , compared to body weight By the calculations I got a s 0,2057 for body width compared to body weight, and compared to body length a = = 0,2520, to body height a * 0,3846 allometrical exponent. These exponents prove not only the developmental speed of some measurement comparisons but inform us, that 3 linear measurements, which represents three dimensions how take places in the increase of body weight 0 That has to be found •so that,the width of body with 20,5? % helps the body weight increase, this is justified by the laterally flattened form of the examined species, the body length with 25,20 %, and the body height with 38,46 % exerts the development of body weight. Generally the body length of fishes well prove the
