530 



BULLETIN OF THE BUREAU OF FISHERIES. 



Table 7. — Number of salmon and trout op Rangeley Lakes and ratios op same to the first 

 OF six periods op five years each, overlapping two years. 



Table 8. — Percentile proportion op salmon and trout op Rangeley Lakes and ratios of 



SAME to the first op six PERIODS OF FIVE YEARS EACH, OVERLAPPING TWO YEARS. 



Percenh 

 100 



90 

 80 

 70 

 60 

 50 

 40 

 30 

 20 

 10 



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I 



3 A 



Periods 



Fig. 16.— Percentile proportions of salmon and trout recorded from Rangeley Lakes in s-year periods overlappine 2 years. 



Solid line, salmon; broken line, trout. 



In these records the decline in the number of trout is markedly great in the first 

 three periods, and this notwithstanding the increased number of fishermen. But in 

 the last four periods there is a great increase in the number of salmon and an increase 

 of trout in the last two periods. As is shown elsewhere, the increase in the catch of 



