COMPARISON OF YELLOWFIN TUNA OF HAWAIIAN WATERS AND THE AMERICAN WEST COAST 369 

 Table 5. — Comparison of subgroups, Godsil's west-coast data, by covariance analysis, linear regressions 



Source of variation 



Degrees of 

 freedom 



Sum of 

 squares 



Mean 

 square 



Variance 

 ratios 



Head lenKth: 



Deviations from total regression 



Deviations from regression within groups. 



DifTerences among groups 



DifTerences among regression coefficients.. 

 DitTerences among adjusted group means. 

 Snout to insertion first dorsal; 



Deviations from totnl regression .-. 



Deviations from regression within groups 



DifTerences among groups.- 



Differences among regression coefficients.. 

 DitTerences among adjusted group means. 

 Snout to insertion ventral; 



Deviations from total regression 



Deviations from regression within groups. 



DifTerences among groups 



DifTerences among regression coefficients.. 

 DifTerences among adjusted group means. 

 Snout to insertion second dorsal: 



Deviations from total recession 



I>cviutious from regression within groups. 



DitTerences among groups 



DifTerences among regression coefficients. . 

 Differences among adjusted group means. 

 Snout to insertion anal: 



Deviations from total regression 



Deviations from regression within groups. 



Differences among groups 



Differences among repression coefficients.. 

 Differences among adjusted group means. 



1,909 



1,885 



1.883 



24 

 12 

 12 



1.907 

 1,883 



24 

 12 

 12 



1,908 

 1.884 



24 

 12 



12 



1.905 

 1,881 



24 

 12 

 12 



23,049 

 18,294 



4,755 

 1,773 

 2,982 



36,411 

 31,623 



4,788 

 2,248 

 2.540 



37.9(50 

 35,269 



2.691 



591 



2,100 



47,560 

 40,871 



6,689 

 4,379 

 2,310 



51,914 

 42, 615 



2,745 

 6.5M 



9.705 



198.1 

 147.8 



16.78 



199.5 

 187.3 



112.1 

 49.25 



21.69 



278.7 

 364.9 



22.65 



387.5 

 228.8 



S-- 

 ^=- 



16. 7S 

 187.3 



= 11.89 



^^-5.89 



278.7 

 21.69" 



364.9 

 21.69" 



387. 5 

 22.65" 



228. 8 _ 

 22.65° 



16.82 



Table 6. — Comparisons of Schaefer's and Godsil's Costa Rican data by covariance analysis, linear regressions 



Source of variation 



Degrees of 

 freedom 



Sum of 

 squares 



Mean 

 square 



Variance 

 ratios 



Keadlensth: 



Deviations from total regression 



Deviations from regression within groups.. 



Differences between groups. 



Differences between regression coefficients. 

 Differences between adjusted group means. 

 Snout to insertion tirst dorsal: 



Deviations from total regression. ._ 



Deviations from regression within groups.. 



Differences between groups 



Differences between regression coefficients.. 

 Differences between adjusted group means. 

 Snout to insertion second dorsal: 



Deviations from total regression 



Deviations from regression within groups.. 



Differences between groups.. 



Differences between regression coefficients. 

 DifTerences between adjusted group means. 

 Snout t4> insertion anal; 



Deviations from total regression 



Deviations from regression within groups.. 



Differences between groups 



Differences between regression coefficients. 

 DilTerenccs between adjusted group means. 



806 



808 

 806 



807 

 805 



806 

 804 



10, 018 

 9,730 



288 

 83 

 205 



16. 650 

 16,226 



284 

 120 

 164 



27.293 

 27.162 



131 

 60 



71 



23. 849 

 23.412 



437 



52 



3S5 



144 

 83 

 205 



20.18 



142 

 120 

 164 



65.5 

 fiO 

 71 



218 

 52 

 385 



=6.8S 



=7.04 

 =5. 95 



12.07 



83 

 12.07' 



142 

 20.18' 



120 _ 

 20.18' 



65. 5 ^ 

 33. 74~ 



-2!8-=7.49 

 20.12 



29.12 

 385 



= 13.21 



' Not significant. 



