Salmonidae of Norway. 69 



attached to the fish, and by the time that ten to fifteen 

 miles of river have been travelled but few lice will remain ; 

 in fact the brackish and fresh water seem to affect salmon 

 and sea-lice alike. 



In a big water, both in British and Norwegian rivers, 

 the salmon will run up during the daytime, for they may 

 frequently be seen jumping at the stream-tops after having 

 negotiated the rapid water below ; but, in lower states of 

 the water, I think this practice is more general with the 

 Norwegian salmon, and I have frequently observed three 

 or four ascending together through water scarcely three 

 feet in depth, illuminated by a midday sun. 



The long Norwegian twilight will allow the angler to 

 continue operations until eleven or twelve o'clock through- 

 out the month of June, and as far north as Bergen there 

 is sufficient light to fish comfortably until 9 p.m. up to 

 about August 10. The habits of the fish doubtless are 

 affected by the light as regards " taking," especially in low 

 waters, but, by common consent, they appear to desist from 

 "taking" at some variable hour which, in my opinion, is 

 determined by the daily or nightly temperature and light. 



If the evening be warm and balmy, salmon will often 

 take up to midnight ; but, on the other hand, should 

 cold atmosphere or wind set in, it is of little good to 

 continue fishing after 7 or 8 p.m. ; in fact, in cold weather, 

 I much prefer the daytime. 



