Translation Series No.1211

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contributions from the Deutsche Wissenschaftliche Kommission fer Meeres-
[P. 228]
forschung (German Scientific Commission for Oceanography [GSC0]). For
special investigations, the testing of new drift nets, and the selective
tests with fish hooks, the Federal Ministry for Nutrition, Agriculture,
and Forests made funds available.
Prof. R. Kandler, who directs the German salmon research, has
supported the present investigations not only in regard to organization,
but has also stimulated it scientifically and given directions. I should
like to thank him for numerous clarifying discussions and conversations.
Important help has been given by Dr. G. Ohlmorgen-Hple through
taking.part in 5 of the 13 cruises. The work done on board under very prim-
itive conditions and in winter, deserves high praise.
In the market analyses of the Kiel seafish market and in the
evaluation of the material.I had the help of the technical assistants Miss
U. Behrens and Miss H. v. Kistowski and also of Drs. F. Lamp and G. Rauk.
I am very grateful to the manager of the Fischverwertung Kieler Ferde, Mx.
Koschies, who showed great understanding and gave the permission for the
market research.
My appreciation and special thanks axe extended to the many
cutter captains and salmon fishermen, who provided space on board, kept
. the diaries, collected salmon stomachs ancthelped with the market inves-
tigations.
2. The salmon fishery
in the Balt , ic Sea
2.1. The historical development
B. Benecke (1881), who has carefully studied the documents on
the Teutonic Order in East- and West-Frussia, as fax as they concern the
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