MICHIGAN (Cont. ) 



Lakes Huron, Superior, and Michigan; Hdqtrs. : Hammond Bay Fishery Lab. , Rogers 

 City, Mich. ; began 1951, preliminary work completed June 1953; Bernard R. 

 Smith, Leader. 



Address correspondence to: James W. Moffett, Chief, 1220 E. Washington St. , 

 Great Lakes Fishery Investigation, Arm Arbor, Mich. 



2. Development of Fish "Leading" or "Assembling" Devices (Proj. lb). 



The objective is to develop a device utilizing some form of pulsed direct current which 

 may be used as an accessory to the electro-mechanical weir and trap to aid in the 

 rapid transfer upstream of food and game fishes migrating with the sea lampreys. 



Lakes Huron, Superior, and Michigan; Hdqtrs. ; Hammond Bay Fishery Lab. , Rogers 

 City, Mich. ; began 1951, preliminary work completed June 1953; Alberton L. 

 McLain and Willis L. Nielsen, Leaders. 



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

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



3. Development of a Selective Electrical Barrier to Lamprey and Fish Migrations 

 (Proj. Ic). 



The objective of this project is to determine whether a Burkey-type electric fish screen 

 can be so adapted as to block the upstream movement of spawning-run sea lampreys 

 while permitting the passage upstream of migrating food and game fishes. 



Lakes Michigan, Superior, and Huron; Hdqtrs. : Hammond Bay Fishery Lab. , Rogers 

 City, Mich. ; began 1951, preliminary work completed June 1953; Leo F. Erkkila, 

 Leader. 



Address correspondence to: James W. Moffett, Chief, Great Lakes Fishery Investi- 

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



4. Survey of Great Lakes Tributary Streams (Proj. 2). 



The objectives are to determine the location of all streams in the Superior, Michigan 

 and Huron basins in which successful reproduction of the sea lamprey can occur, 

 and to determine the degree to which such streanns are or may be utilized by the 

 species, to determine therefiom where control structures must be located. 



Hdqtrs. : Hammond Bay Fishery Lab. , Rogers City, Mich. ; began 1950, planned for 

 completion in 1954; Howard A. Loeb, Leader. 



Address correspondence to: James W. Moffett, Chief, Great Lakes Fishery Investi- 

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



5. Chemical Control Techniques (Proj. 3). 



The objectives are to determine whether a specific toxicant exists which will be lethal 

 to larval lampreys but harmless to other aquatic life occupying the same environ- 

 ment and to determine whether this toxicant can be applied in streams in an effi- 

 cient and economical manner. 



Lake Michigan; Hdqtrs. : Hammond Bay Fishery Lab. , Rogers City, Mich. ; began 

 1950, continuing; Philip J. Sawyer, Leader. 



Address correspondence to: James W. Moffett, Chief, Great Lakes Fishery Investi- 

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



56 



