Fitzgerald et al.: Elemental signatures in otoliths of larval Theragra chalcogramma 



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Table 5 



Laser ablation ICP-MS results of one-factor ANOVA (degrees of freedom [df]; sums of squares [SS]; mean square [MS]) at two 

 positions (0-40 /im and 40-80 /im from the nucleus) in walleye pollock (Theragra chalcogramma) otoliths collected at five loca- 

 tions: the southeast Bering Sea [SB], North Bering Sea (NB), Bristol Bay (BB), Prince William Sound (PW), and Yakutat (YK). 

 **= significant at a = 0.05; ns=nonsignificant. Multiple comparisons among locations were conducted by using Tukey's honestly 

 significant difference (HSD). Locations were ordered (left to right I from lowest to highest ratios; lines link locations that were 

 not significantly different (a=0.05). 



Element 



Source 



df 



SS 



MS 



P<F 



Tukev's HSD 



