COUNCIL — SEPT. 1912 — APPENDIX H — 118 — 



of fry are carried out regularly. A Superintendant of Fisheries would make 

 a preliminary investigation during the coming autumn, to be continued on a more 

 extended scale next summer. 



Prof. Henking was of opinion that the question of ice should also be taken 

 into consideration. He further proposed the preparation of a small scale map of 

 the whole of the Baltic region, on which the salmon rivers selected should be 

 shown, omitting all other details. 



Dr. Trybom expressed his fear that the preparation of an exact description 

 would take a long time. 



Dr. Sandman would not be able to make a journey of inspection before 

 next spring. 



Dr. Trybom enquired whether it were also desirable to make investigations 

 with the current meter. 



Exc. V. Grimm considered that it was of particular importance to have an 

 exact description of the spawning grounds. 



(At this point Dr. Hugh Smith arrived.) 



Dr. JoHANSEN described the Gudenaa, the salmon river selected by Den- 

 mark, and gave particulars of the capture in the river itself and in the waters 

 about its mouth. The spawning grounds were in the tributaries. No salmon were 

 to be found in the upper stream, as the river was completely blocked by a lock- 

 age. The lakes in the upper part of the river contained Salmo lacustris, the 

 upper channel itself Salmo trutta. Fry had already been planted, after which the 

 capture of salmon appeared to have increased, the statistics, however, were not 

 absolutely reliable. It was now intended to have young salmon, which had their 

 origin from planting ponds, laid down according to a certain method. 



Dr. Trybom: The planting of young fish is a good plan, but very often 

 cannot be undertaken because it is too expensive. 



Exc. v. Grimm considered that it would be necessary to study under which 

 conditions it would be better to plant fry or young fish. 



Dr. Sandman requested Dr. Hugh Smith to inform the meeting what was 

 the general opinion in America as to the importance of planting salmon fry 

 or young fish, or what results had there been obtained from their extensive 

 material. 



Dr. Hugh Smith stated that in America the best results with Salmo salar 

 were undoubtedly obtained from the planting of salmon "fingerlings". The ap- 

 proved method was to rear the young in troughs or artificial ponds, and to plant 

 them after they had attained a size when they could take care of themselves. 

 This was of course expensive, and could not, as yet, be applied to the entire out- 

 put of the hatcheries; but the tendency was to provide increased facilities for 



