Address to fishermen's associations 

 of Michigan and Wisconsin suggest- 

 ing possibility of control of fishing 

 intensity through limitation of num- 

 ber of licenses as substitute for the 

 "legally imposed inefficiency" of 

 certain restrictive measures and 

 calling for scientific inquiry into 

 soundness of assemptions as to proper 

 size limits, closed seasons, • • "on 

 which current regulations are based. 



1952. 25 years of Federal fishery re- 

 search on the Great Lakes. Fish 

 and Wildlife Serv., Spec. Sci. 

 Rep. --Fish. No. 85, 48 pp. 

 The original article of which the 

 present one is a revision and expan- 

 sion. 



1952. Changes in the lake trout fishery 

 of the three upper lakes . The 

 Fisherman, Vol. 20, No. 6, pp. 5 and 8. 



Comparison of production by state 

 and province in Lakes Michigan, 

 Huron, and Superior in 1949 and 1950. 

 Gives details for these two years on 

 production, fishing intensity, and 

 abundance of lake trout in the six 

 statistical districts of the State of 

 Michigan waters of Lake Superior. 

 Records of catch per unit effort of 

 gill nets, pound nets, and set -hooks 

 indicated that use of nylon gill nets 

 had not yet biased statistics seriously 

 in 1950. 



1953. Perch studies in Green Bay. 

 Prog. Fish. -Cult., Vol. 15, No. 3, 

 pp. 133-134. 



The studies were started cooperatively 

 by the Fish and Wildlife Service and 

 the Wisconsin Conservation Depart- 

 ment in 1948 to learn causes of poor 

 fishing and to obtain a better basis for 

 management. Evidence that growth 

 was so slow that few fish survived to 

 reach the minimum legal length of 8 

 inches led to a lowering of the limit to 

 7-1/2 inches in 1952. During the 1952 

 season fishermen kept 250 fish for 

 every 100 they could have retained 

 under the former limit. No effects 

 could be detected on the perch population. 



1953. Trout fishing in Michigan waters of 

 Lake Superior, 1952. The Fish- 

 erman, Vol. 21, No. 5, pp. 7, 11- 

 12, and 14. 



Description of trends of production, 

 fishing intensity, and abundance in the 

 six statistical districts of State of 

 Michigan waters, 1949 through 1952. 

 Analyses of catch per unit effort after 

 general change from cotton to nylon 

 gill nets led to suggestion that gill 

 nets draw on a different segment of 

 the population than that exploited by 

 pound nets and set-hooks. 



1954. Fluctuations in growth and year- 

 class strength of the walleye in 

 Saginaw Bay. Fish. Bull., Fish 

 and Wildlife Serv., Vol. 56, pp. 

 7-59. 



Collections of 1926-1930 yielded in- 

 formation on the relative strength of 

 year classes in 1917-1928 and on 

 fluctuations of growth in length and 

 weight in 1916-1929. A single col- 

 lection in 1943 provided some informa- 

 tion on these matters for later years 

 and demonstrated a large increase of 

 growth rate and decrease of average 

 age after 1929. Paper includes data 

 on commercial production, length- 

 weight relation, sex ratio, and size 

 at maturity. 



1954. Changing concepts in fishery re- 

 search on the Great Lakes. Proc. 

 Gulf and Caribbean Fish. Inst., 

 6th Ann. Sess., pp. 64-70. 

 The approach in earlier research was 

 biased by undue emphasis on depletion 

 through overfishing as the major, per- 

 haps the only significant factor in the 

 progressive deterioration of the Great 

 Lakes fisheries. Too little attention 

 was given to effects of selective fish- 

 ing, species interactions, and environ- 

 mental changes. It is now realized 

 that populations should be studied as a 

 whole, all species together in relation 

 to their changing environment. In this 

 complex situation, application of mod- 

 ern fishing theory offers little promise 

 of profitable return . 



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