Translation Series No.1211

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of these six = 40 "Per cent have been reported hitherto. Pive of the fish
had at the time of recapture not moved from the fishing ground 5 after a
maximum of 12.months, one fish had migrated into the Lulettiv to spawn
(Fig. 24 a).
In the Danzig Deep 33 salmon have been liberated in November/
December 1959 and in December 19 6 2. Of the fish recaptured at sea some
.had not moved farther during 11 months than others in one month after re-
lease. (Three fish of one experiment of February 1964 in the same area
were recoverèd like the others in the Danzig Deep or off the Pomeranian
coast, respectively.) Two other fish had migrated into the rivers Lule
and Torne& after 7 and 19 months, respectively, in order to spawn.
In a third experiment in November 1960, 52 salmon were tagged
near Memel. Six of these fish have been recovered at sea. Of these four
had moved into the Danzig Deep and two to Bornholm. A further six salmon
were captured 7 to 8 months later during spawning migration in the rivers.
Three of these were caught in the Gulf of Bothnia(lingermanalv and Indals-
alv, respe-ctively) and three in the Bottenwik (Torne. and Kalix, respec-
tively).
Besides the spawning fish, no other fish have been recovered
fn the three experiments that had moved north and crossed the 56th par-
allel or had even reached Gotland. In the first experiment the fish had
moved a maximum distance of 40 nautical miles from the place of release
and had remained around Bornholm. The fish in the second experiment did
not move farther to the south or to the west than 80 nautical miles and
remained in the Danzig Deep or off the Pomeranian coast. Even in the third
experiment there was only a maximum movement of 140 nautical miles after
13 months. It cOuld not be established that the fish caught last had traV-
eled the greatest distances.