International Journal of Aquaculture, 2018, Vol.8, No.16, 121-126
123
Figure 1 von Bertalanffy’s linear growth equation for
S. trutta
from Iliyna River
Table 3 Back calculated values of the weight (W, g) and weight increments (t, g) in the end of each year
Generation (year)
Age group
Weights (W, g) in the end of each year
Number of fish
1
st
2
nd
3
rd
4
th
5
th
2011
І
3.938
8
2010
ІІ
3.277
42.176
16
2009
ІІІ
2.906
19.569
44.821
5
2008
ІV
5.355
23.355
65.953
97.867
7
2007
V
3.673
9.533
26.492
56.492
122,974
1
Average weights, g
3.77
32.61
54.79
92.70
122.97
Average weight increments, t=W(n)-W(n-1)
3.77
28.84
22.18
37.91
30.28
Figure 2 von Bertalanffy’s weight growth equation for
S. trutta
from Iliyna River
