Translation Series No.1211

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Three conclusions can be drawn from these results:
(1) The recaPtured salmon of the first two experimental series have carried
out astonishingly short movements and have remained very close to the
pdint of capture and release.
(2) A large part of the recovered fish of the third experiment were cap-
tured in the rivers.
(3) The other fish of the third experiment had travelled the greatest dis-
tances (a maximum of 140 nautical miles) and visited the Danzig Deep
as well as Bornholm.
These results support the conjecture that the salmon do not make
far flung travels or annual periodic movements once they have reached the
Baltic Sea proper. One has rather to assume non-periodic local movements
after the fish have reached a feeding ground. This will be investigated later.
4.1.3.
[P. 286]
In the third experiment mentioned above the high percentage of
spawning migrants is striking. At the time of tagging these fish were res-
iding in the Baltic Sea in their second year (A.11-) and they did spawn in
the course of their third year. Since of the total catch only the smaller
fish (under 75 cm fork length) have been tagged, it is possible that of
the remaining fish still more than one-half did migrate to spawn. Con-
sequently one could explain the results of this tagging as follows:
A few salmon in the southern Baltic Sea, of which the majority
did spawn a year later, had moved in November 1960 already to the west of
Memel. When the maturing fish wandered in the spring of 1961 towards their
home rivers, the juvenile fish returned in part to the Danzig Deep and in
part to Bornholm. In any case it must be stated that the sPawning migrants
associated in the fall before their spawning migration still with juvenile
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