258 



FISHERY BULLETIN OF THE FISH AND WILDLIFE SERVICE 



Table 26. — Summary of ranking of means of meristic characters, by species 



' g. whitehousei = 4.0. 



2 Exclusive of gorbuscha. 

 in 

 gioo 



(£ 



111 



U 80 



Z 



< 

 Ul 

 < 60 



(E 4 

 O 



o 



u. 

 o 



£ 20 



< 



3 To put on a common basis. 



Table 27. — Adjusted rankings of certain correlated 

 meristic characters, iy species 



I. Anal and dorsal fin rays 





II. Vertebrae and lateral-line scales 



2 4 6 8 lO.O 



RANKING OF OBLIQUE SCALE ROWS 



Figure 12. — Relation between oblique scale rows and scale 

 rows from the dorsal to the lateral line. 



Throughout the eniuneration data tliere is a 

 clear tendency for the variances to be correhited 

 with their means. This tendency is easily seen in 

 figures 4, 5, and 7, in which the 80 to 20 inter- 

 percentile range increases with an increase in the 

 mean. This of coui'se implies that the differences 

 between mean rankings must be larger for higher 

 rankings to be equally as significant as the smaller 

 differences between mean rankings for lower 

 rankings. 



Species 



Oncorhyiichus: 

 tshawytscha. 

 gorbuscha.-. 



kisutch 



keta _ 



verka 



Cristwomer: 

 namayciLsh. 



Salmo: 



salar 



gairdneri,.. 

 g. kamloops 



clarki 



trutta 



Salvelinus: 



alpinus 



aureolus 



marstoni 



malma 



fontinalis^.. 



Average 

 rank 



7.4 

 10.6 

 4.8 



e.o 



5.4 



3.0 



0.2 

 3.0 

 3.3 

 2.S 

 0.2 



3.6 

 3.0 

 3.1 

 3.6 

 0.9 



