Wilson et al.: Regional variation in the feeding cycle of juvenile Theragra chalcogramma 
325 
observed seasonal and regional variation in food habits 
and body condition directly affect juvenile walleye pol- 
lock growth rates. Given that food habits, body condition, 
and growth rate are relevant to the survival of juveniles, 
the location of walleye pollock nurseries, as opposed to 
less productive juvenile habitat (Dahlgren et al., 2006), 
may vary with annual periodicity. 
Acknowledgments 
We thank L. L. Britt, E. S. Brown, M. S. Busby, W. C. 
Flerx, M. A. Guttormsen, D. G. Kachel, M. H. Martin, 
D. G. Nichol, J. W. Orr, N. W. Raring, P. G. von Szalay, 
M. E. Wilkins, C. D. Wilson and all cruise personnel 
from the NOAA ship Miller Freeman, FV Sea Storm, FV 
Ocean Harvester, FV Morning Star, and FV Vesteraalen 
involved in the collection of samples and data. K. M. 
Bailey provided initial guidance that helped define our 
objectives. Comments from J. Duffy-Anderson, G. Lang, 
J. Napp, the AFSC Publications Unit, and three anony- 
mous reviewers improved the manuscript. This research 
is contribution EcoFOCI-0766 to NOAA’s Ecosystems 
and Fisheries-Oceanography Coordinated Investigations, 
and North Pacific Research Board (NPRB) publication 
no. 292. It was supported by the Sea Lion Research 
Initiative (grant no. 02FF-04), the NPRB (grant no. 
R0308), and NOAA’s North Pacific Climate Regimes and 
Ecosystem Productivity Program. 
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