CONTENTS 



Page 



The need for age data 440 



Previous studies 440 



Validation of the scale reading method 441 



Haddock scale reading procedure 443 



Confirmation of ages from length distributions 444 



Confirmation from age distributions 445 



Comparison of scales and otoliths , 446 



Confirmation from tagging 447 



Discussion 448 



Conclusions 449 



Literature cited 449 



m 



