Fishery Bulletin 92(1). 1994 



Figure 4 



Onychoteuthis borealijaponica. UV micrograph of a ground 

 statolith stained with tetracycline. 



where RSS,, is the RSS from the full 

 (Schnute) model, RSS R is the RSS from the 

 reduced (exponential) model, DF F is the 

 number of degrees of freedom from the full 

 model, and DF R is the number of degrees 

 of freedom from the reduced model (Neter 

 et al., 1985). 



Differences in the slopes of the ML- 

 weight and size-at-age relationships by sex 

 and geographical location were compared 

 with analysis of covariance (ANCOVA) and 

 F-tests (Sokal and Rolff, 1981). Data were 

 initially In-transformed, and ANCOVA was 

 used to test for differences in slopes of the 

 linearized equations. Elevations of the lin- 

 earized equations were compared with F- 

 tests. Analyses were performed on central 

 North Pacific male and female growth data 

 and western North Pacific female data 

 with the assumption that females in the 

 western North Pacific exhibited a similar 

 type of growth as individuals in the central 

 North Pacific. There were too few individu- 

 als to test for differences in growth rates 



