MICHIGAN (Cont. ) 



Hdqtrs. : Marquette, Mich. ; began May 1950, continuing; Leo F. Erkkila, Leader. 

 Address correspondence to: James W. Moffett, Chief, Great Lakes Fisheries 

 Investigations, 1220 E. Washington St. , Ann Arbor, Mich. 



16. Fluctuations in Growth and Strength of Year Classes (Proj. 20). 



The objective is to accumulate, through scheduled sampling, materials (scales, 

 length, weight, and sex data) on principal species for a study of fluctuations and 

 as opportunity affords to relate these fluctuations to environmental conditions, 

 fishing activities and other factors. 



Lakes Huron and Erie; Hdqtrs. : Ann Arbor, Mich. ; began 1930, continuing; Ralph 



Hile, Leader. 

 Address correspondence to: James W. Moffett, Chief, Great Lakes Fisheries 



Investigations, 1220 E. Washington St. , Ann Arbor, Michigan. 



17. Food of Blue Pike in Lake Erie (Proj. 21). 



From study of stomach contents at different seasons and localities the project is 

 planned to determine the food habits of blue pike -with special reference to the 

 possible role of the blue pike in determining the abundance of such prey species 

 as the Cisco. 



Hdqtrs. : Ann Arbor, Mich. ; began 1951, to be completed in 1955; Willis S. Glidden, 



Leader. 

 Address correspondence to: James W. Moffett, Chief, Great Lakes Fisheries 



Investigations 1220 E. Washington St. , Ann Arbor, Mich. 



18. The Effect of Mesh Size in Chub Nets on the Escape of Young Lake Trout (Proj. 55). 



A survey to determine the best size of rriesh to use to minimize destruction of lake 

 trout. 



All Great Lakes, Hdqtrs. : Ann Arbor, Mich. ; began 1928, scheduled for completion 



April 1954. 

 Address correspondence to: John Van Oosten, Chief, Biology of Great Lakes Fishes, 



Ann Arbor , Mich. 



19. Effect of Abundance on Growth Rate of Smelt (Proj. 56). 



A project to determine the potential productivity of the smelt runs by noting the re- 

 lation between abundance and growth. 



Hdqtrs. : Ann Arbor, M ch. ; began 1943, to be completed December 1954. 

 Address correspondence to: John Van Oosten, Chief, Biology of Great Lakes Fishes, 

 Ann Arbor, Mich. 



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