A STUDY ON TROUT AND YOUNG SALMON. 



273 



During the first summer of my investigations I discovered 

 in the collections of our university museum 2 young salmon in 

 the emigration stage, which professor G. 0. Sars had taken in 

 the Trondhjem-fiord from the stomach of a large saithe [gadus 

 virens) during the summer 1891. 



Being aware of this fact I have continually examined the 

 stomachs of large numbers of saithe without being able to find 

 any young salmon. On one occasion however I have found trout. 



On reading a report prepared by Mr, Simonnaes, assistant 

 to the inspector of fresh-water-fisheries I was aware of his 

 mentioning the fact, that the mackerel-fishermen from Flekkerøe, 

 Ghristianssand professed to get in their driftnets small salmon 

 the size of a large herring. He further mentions, that he him- 

 self had the opportunity of once seeing the remains of an indi- 

 vidual 40 cm.s long caught in the Skagerrack by the mackerel- 

 fishermen from Flekkerøe. 



During a visit to Flekkerøe in 1901 I arranged with Mr. 

 Thomas Thomassen, Skaalvik, a man possessing influence among 

 the fishermen, that the young salmon caught during the summer 

 1901 should be forwarded to me. I offered a reward of 50 kroners 

 for each salmon between 15 and 45 cm. length forwarded to me. 



At the end of the fishing season I received from this source 

 6 specimens caught in the driftnets in the open ocean up to 30 

 miles off any shore. 3 proved to be trout, 3 salmon. 



The following table shows their species and size also the 

 date of capture and 'distance from land where they were caught. 



Nr. 



Species 



Length 

 in cm. 



Locality 



Date 1901 



1 



Salmon 



39 



18 miles S. off. Oksø 



Vs 



2 



n 



17,5 



8 „ 



'% 



3 



w 



43 



30 „ -»- 



% 



4 



Trout 



38 



8 „ -»- 



% 



5 



w 



42 



26 „ -)>- 



% 



6 



n 



44 



8 „ 



^Ve 



Nyt Mag. f. Natnrv. XXXXII. III. 



18 



