Translation Series No.1211

Schlaçhtgewicht
kg •
1957
Fig. 38.
gutted weight
e
.
/
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• i_
1958 1959 1960. 1961 1962 Jahre irea-rm:
Weight increase in the Baltic Sea salmon.
- 164
-
increase .in weight. He found that the salmon showèd the greatest increase
thiring the third year in the sea. The investigations of the length, how-
• evsr, showed the gredbast increase during the second . year in the sea - in
contrast to the results given above. The same result was obtained by Kând-'
ler and Lfihmann (1957): Chrzan obtained the mean lengths with the aid of
a simple recalculation (cf. 5:2.2.). Furthermore hiasamples of catche,
as well as those Of Kândler and ahmann, were not taken at a certain date,
but durinithe entire season. It is therefore not possible to make a Closer
. comparison between the iesults of these authors and of those of the present
investigations.
•
The Figs. 36 . and 38 show, the characteristic annual course of
growth very plainly, the rapid increase during the summer and the check
[p.528 ]
in the winter. These differepées are the more distinct .theyounger'the
fish. In the older salmon a slowing down of growth during the winter is •
hardly perceptible.
A comparison of the growth in length and weight . shows that the