The Salmon 85 
returning again as clean fish the joining of the new rings to the 
old is much more pronounced than it is on those of the autumn 
run; many of the latter, however, are so short a time in fresh 
water before spawning and returning to the sea, that very little 
damage occurs to the scales. When they appear in the river 








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Fic. 87.—Marked 10}-lb. Kelt, 16th March 1906. Recaptured clean, 27 lbs., 8th August 1967. 
again, it is therefore sometimes difficult to tell whether they have 
been in fresh water before or not. In treating of fish falling oft 
in condition, I refer, of course, only to fish that would spawn on 
entering fresh water. Fish caught in the sea and confined in 
fresh water, as also barren fish, retain their silvery coat and their 
good condition for many months. Even at the end of four 
months little difference in their appearance can be detected. 
