Comparison of production by State 

 and Province in Lakes Michigan, Huron, 

 and Superior in 1949 and 1950. Gives 

 details for these two years on produc- 

 tion, 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. 



HILE, RALPH. 



1952b. Fishing regulations. The Fisherman 

 (Grand Haven, Mich.) 20(3):5, 12, 14. 



Address to fishermen's associations 

 of Michigan and Wisconsin suggesting 

 possibility of control of fishing intensity 

 through limitation of number of licenses 

 as substitute for the "legally innposed 

 inefficiency" of certain restrictive 

 nneasures and calling for scientific in- 

 quiry into soundness of assumptions 

 as to proper size limits, closed 

 seasons . . , on which current regulations 

 are based. 



HILE, RALPH. 



1952c. 25 years of Federal fishery re- 

 search on the Great Lakes. Fish Wildl. 

 Serv,, Spec. Sci. Rep. Fish. 85, i + 48 p. 



The original article of which the 

 present one is a second revision and 

 expansion. 



HILE, RALPH. 



1953a. Perch studies in Green Bay. Progr. 

 Fish-Cult, 15(3):133-134. 



The studies were started cooper- 

 atively 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 de- 

 tected on the yellow perch population. 



six statistical districts of State of 

 Michigan waters, 1949 through 1952. 

 Analyses of catch per unit effort after 

 general change fronn 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. 



HILE, RALPH. 



1954a. Changing concepts in fishery re- 

 search on the Great Lakes. Proc. Gulf 

 Carib. Fish. Inst., 6th Annu. Sess.: 

 64-70. 



The approach in earlier research 

 was biased by undue emphasis on de- 

 pletion through overfishing as the major, 

 perhaps the only significant factor in the 

 progressive deterioration of the Great 

 Lakes fisheries. Too little attention was 

 given to effects of selective fishing, 

 species interactions, and environmental 

 changes. It is now realized that popula- 

 tions should be studied as a whole, all 

 species together in relation to their 

 changing environment. In this connplex 

 situation, application of nnodern fishing 

 theory offers little promise of profitable 

 return. 



HILE, RALPH. 



1954b. Fluctuations in growth and year- 

 class strength of the walleye in Saginaw 

 Bay. Fish Wildl. Serv., Fish. Bull. 

 56:7-59. 



Collections of 1926-30 yielded infor- 

 mation on the relative strength of year 

 classes in 1917-28 and on fluctuations 

 of growth in length and weight in 1916-29. 

 A single collection of 1943 provided 

 some information on these matters for 

 later years and dennonstrated a large 

 increase of growth rate and decrease 

 of average age after 1929. Paper in- 

 cludes data on commercial production, 

 length-weight relation, sex ratio, and 

 size at maturity. 



HILE, RALPH. 



1954c. Status and future of the Annerican 

 Fisheries Society. Trans. Amer. Fish. 

 Soc. 83:357-359. 



HILE, RALPH. 



1953b. Trout fishing in Michigan waters of 

 Lake Superior, 1952. The Fisherman 

 (Grand Haven, Mich.) 21(5):7, 11-12, 14. 



Description of trends of production, 

 fishing intensity, and abundance in the 



Presidential address at eighty-third 

 annual meeting urging: a more demo- 

 cratic organization; the wielding of 

 greater influence in fishery matters of 

 general public concern; and the ending 

 of the trend toward superficiality in 

 research. 



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