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FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Figure 16. — (A) Scale of a lake trout 16.5 inches long, marked in September 1945 and recovered October 5, 1948. Note 

 partial check between the second and third annuli. There was no evidence of a check on the righthand side of the 

 scale. (B) Scale of a lake trout 13.5 inches long with left pectoral fin consisting of 9 twisted rays one-half normal 

 length. Caught December 18, 1948. Four checks appear on the scales. As lake trout with left pectoral fin removed 

 were released in September 1946, the scales should have had 3 checks, 2 annuli, and 0-mark, if the fish were one of 

 those marked. The fin was, therefore, deformed. 



