MICHIGAN (Cont. ) 



reference to the possible presence of local races and movements across inter- 

 state and international boundaries. 



Hdqrs. Ann Arbor; began June 1950, continuing; Paul H. Eschmeyer, Leader. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



8. Linrnological Studies of Lake Michigan. 



This project is aimed at accumulating information on the physical, chemical, 

 and biological limnology of the Lake for the purpose of establishing typical condi- 

 tions, their seasonal changes, defining major limnological problems, and obtain- 

 ing solutions to them. 



Operations of research vessel Cisco; began summer 1951, continuing. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



9. Experimental Fishing in Lake Michigan. 



The objective is to test various types of experimental gear (as specially con- 

 structed gill nets, bottom trawls, mid-water trawls) to learn their efficiency and 

 limitations in various situations and to obtain information on the distribution and 

 abundance of various species with special reference to the smaller parasitic stages 

 of the sea lamprey, small stages of commercially important species, and small 

 species not sampled by commercial gear. 



Operations of research vessel Cisco; began July 1952, continuing. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



10. Food Relations of Lake Trout. 



The objective of this project is to determine from stomach contents the food 

 relationships and the utilization of the potential foods, including the amount, fre- 

 quency of occurrence, and variation as related to size of trout, seasons, localities 

 and depths of water. 



Hdqrs. Marquette; began January 1950, to close Decennber 1954; Leo F. 

 Erkkila, Leader. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



11. Life History Studies of Lake Superior Fishes. 



The objectives of this project are to obtain fundamental information on the life 

 histories of commercially important species in such matters as identity of popula- 

 tions, movements, seasonal and local abundance, flucttiations in growth and 

 strength of year classes. 



Hdqrs. Marquette; began May 1950, continuing; Stanford H. Smith, Leader. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



L2. Food of Blue Pike in Lake Erie. 



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. 



Hdqrs. Ann Arbor; began 1951, to close 1955; Willis S. Glidden, Leader. 



Address inquiries to: James W. Moffett, as in No. 1 above. 



13. Life History and Habits of Lake Trout in Lake Superior. 



The objective of this project is to determine the growth, distribution, repro- 

 duction, and relative abundance of lake trout in Lake Superior with special em- 

 phasis on the juvenile stages. 



Hdqrs. Ann Arbor and Marquette; began 1951, continuing; Paul H. Eschmeyer, 

 Leader. 



Address inquiries to: Jannes W. Moffett, as in No. 1 above. 



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