12 
Fishery Bulletin 99(1 ) 
Age group 1 , year class 1994 
Age group 3, year class 1994 
Age group 2, year class 1 995 
(CV I, P<0 0002) 
5 
4 
Age group 4, year class 1993 
5, 
4 
3 
2 
1 
0 
Age group 3, year class 1993 
(CV I, P<0.0009) 
Age group 5, year class 1992 
(CV I, P<0.0001) 
1 1 [ 
3 
nil 1 
_dh ; 
J 
1 ill 
n n 
-2.3 -1.3 -0.3 0.7 1.7 -2.0 -1.0 0 1.0 2.0 
CV I score 
Figure 8 
Discriminant (CV I) scores of internal otolith morphometric variables and corresponding ANOVA 
results showing grouping patterns of eastern Georges Bank ( squares) and western Georges Bank 
(circles) haddock. 
Acknowledgments 
We would like to thank Russell Brown, Steve Murawski, 
Kevin Friedland, and two anonymous reviewers for their 
comments; Ruth Haas-Castro for assistance with OPTI- 
MAS; and Frank Almeida, George Bolz, Jay Burnett, and 
Christine Esteves for their suggestions and assistance 
with ageing and collection of samples. This work was per- 
formed while G.A.B. held a National Research Council 
(NOAA/NMFS/NEFSC) Research Associateship. 
Literature cited 
Begg, G. A. 
1998. A review of stock identification of haddock, Melano- 
grammus aeglefinus, in the northwest Atlantic Ocean. Mar. 
Fish. Rev. 60(4): 1-15. 
Begg, G. A., and R. W. Brown. 
2000. Stock identification of haddock Melanogrammus aegle- 
finus on Georges Bank based on otolith shape analysis. 
Trans. Am. Fish. Soc. 129:935-945. 
