Least pretentious of the early field projects was the survey of 

 Lake Champlain made in 1930-31 in cooperation with the Canadian 

 Government to ascertain the effects of commercial fishing in the 

 Canadian waters of Missisquoi Bay on the abundance of walleyes in 

 United States waters o The periods of field work were limited in 

 both years, and the studies did not lead either to formal recommenda- 

 tions or a completed report. 



The experimental chub-net investigations carried out in Lake 

 Michigan in 1930-32 from the research vessel Fulmar were designed to 

 provide information on regulations, particularly on mesh size^ that 

 would permit the most efficient exploitation of the stocks of chubs 

 (deep-water ciscoes) with the minimum destruction of small lake trout 

 that are regularly taken in chub gill netSe The States of Michigan 

 and Wisconsin and four net manufacturers gave liberal financial sup- 

 port to this operations, Although this project proved disappointing in 

 that both of the supporting States ignored the recommendations resiilt- 

 ing from the work, the materials and data collected formed the basis 

 for a number of valuable papers and still constitute our major source 

 of information on the growth, distribution, and abundance of fishes 

 in the deeper waters and on the bottom fauna, plankton, and hydrography 

 of the lake. 



The 1931-32 survey of the deep-trap-net fishery in Lakes Huron 

 and Michigan was conducted in cooperation with the State of Michigan 

 (which carried the bulk of the cost of field operations) to obtain 

 information on which to base regulation of a new and phenomenally 

 efficient net that early threatened ruin to the whitefish fishery 

 in those areas in which the gear was fished intensively. Although 

 detailed observations on the fishing action of the deep trap net 

 and extensive data on seasonal abundance and movements of whitefish 

 and other species permitted specific recommendations on regulations 

 shortly after completion of the survey, legislative action was delayed 

 until the whitefish fishery had collapsed in all major production 

 centers of Lake Huron. 



During this period of active field work four scientists were 

 added to the full-time staff of Great Lakes Fishery Investigations — 

 Hilary J» Deason in 1927, Stillman I'i-ight (by transfer from Interior 

 Lakes Investigations) in 1928, Frank VJ,, Jobes in 1930, and Harry A„ 

 Hanson (by transfer from North Atlantic Fishery Investigations) in 

 1931« Hanson was transferred to Washington headquarters in less than 

 2 years and Wright left in 1933 to accept a position with the Brazilian 

 Governmento Deason continued on the staff until 19U0 when he was trans- 

 ferred to Washington, Except for a 2-year period in 193^-37 at Wash- 

 ington headquarters and vjith Columbia River Salmon Investigations, 

 Jobes remained in Ann Arbor until 19h9 when he resigned to enter teach- 

 ing. 



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