KNUT DAHL. 



selves, sometimes in the hands of those fishmongers, who buy 

 their catch. 



Among the many thousands of fish thus examined I have 

 found nothing to contradiet the results of my own experiments. 

 The catch of the seiners consists besides other seafish of trout 

 only. An occasional grilse or salmon of the larger sizes may 

 occur. 



On numerous occasions I have endeavoured, by the aid of 

 the bagnet-fishermen, to ascertain, if salmon smaller then 45 — 

 50 cm. in length or less weight then 1,2 — 2 kgr. accidentally 

 are caught in their nets, which as a rule only are capable of 

 retaining grilse down to 49 cm. in length when the fish is of 

 ordinary thickness. 



The only result of my efforts in this respect are 2 salmon 

 of 45 cm. length, which kindly were sent me by Mr. Krane, 

 Brevig, Sørøen. They were retained in the meshes of his bag- 

 nets, wich are fixed on the outer side of the Sorøe by the open 

 ocean. Mr. Krane will also according to his statement have 

 seen smaller salmon, who have passed through the nets, some- 

 times in considerable numbers. 



d. Rearing-experiments ond investigations on the 

 systematism of the salmon. 



The results arrived at during the first season of my re- 

 searches, has thus been confirmed by experiments and experience 

 during several years. During these years I have thus not been 

 able to catch or to procure through the aid of other fisher- 

 men salmon of sizes between 13 — 16 and 45—50 cm. in length 

 in those waters where in our country fishing gear is used 

 for the purpose of catching salmon. 



In the face of this negative result I have considered myself 

 obhged to test its correctness as far as my means have reached. 



