HILE, RALPH. 



1955. The walleye problem in Green Bay. 

 Progr. Fish-Cult. I7(l):44. 



Review of the consequences of the 

 phenomenal strength of the 1943 year 

 class--enornnous increases of produc- 

 tion and fishing pressure, frictions 

 among groups of commercial operators 

 and between commercial and sport fish- 

 ermen, and use of scientific information 

 on walleyes in preventing passage of 

 unwise restrictive legislation. 



HILE, RALPH. 



1957. U.S. Federal fishery research on the 

 Great Lakes through 1956. U.S. Fish 

 Wildl. Serv., Spec. Sci. Rep. Fish. 

 226, iii + 46 p. 



Second of the series in which the 

 present report is the third. 



HILE, RALPH. 



1962. Collection and analysis of commer- 

 cial fishery statistics in the Great 

 Lakes. Great Lakes Fish. Comna., Tech. 

 Rep. 5, ii + 31 p. 



The development of the reporting 

 system and of methods of analysis is 

 reviewed, and analytical procedures are 

 illustrated by example. Particular at- 

 tention is given to the basis for charging 

 a species only with fishing that produces 

 the species (effective fishing effort) and 

 to the reduction of fishing effort for 

 different gears to an "expected catch" 

 in pounds. Exceptions to standard pro- 

 cedure and special problems of analysis 

 and interpretation are explained. 



HILE, RALPH, and HOWARD J. BUETTNER. 

 1955. Commercial fishery for chubs 

 (ciscoes) in Lake Michigan through 1953. 

 Fish Wildl. Serv., Spec. Sci. Rep. Fish. 

 163, ii + 49 p. 



Historical review of a fishery based 

 on seven deep-water species of 

 coregonids. Includes the fragmentary 

 and scattered statistics of 1890-1925, 

 the continuous and more dependable 

 catch statistics of 1926-54, and data on 

 catch, fishing intensity, and abundance 

 in local areas for Michigan (1929-54), 

 Wisconsin (1953-54), and Illinois (1950- 

 54), Discusses: biasing effects of 

 changes in fishing laws and of types of 

 gill net twine (linen, cotton, nylon) on 

 estimation of abvmdance; and comments 

 on deterioration of the fishery resulting 



from the end of lake trout predation on 

 small chubs, the attacks of sea lampreys 

 on large chubs, and the large increase 

 in fishing intensity. Data for 1954 in an 

 appendix. 



HILE, RALPH, and HOWARD J. BUETTNER. 

 1959. Fluctuations in the commercial fish- 

 eries of Saginaw Bay, 1885-1956. U.S. 

 Fish Wildl. Serv., Res. Rep. 51, 

 iv + .38 p. 



In addition to production data for 1885- 

 1956, includes statistics on fishing in- 

 tensity and abundance for principal 

 species in 1929-56. By 1956, lake trout, 

 whitefish, walleyes, and lake herring 

 were scarce, but the abundance was well 

 above average for yellow perch, suckers, 

 carp, and catfish. The role of the sea 

 lannprey in the decline of lake trout, 

 whitefish, and walleyes is discussed. 

 Loss of these high-priced species has 

 placed the fishery in an economically 

 precarious situation. Fishing intensity 

 and production are falling off. 



HILE, RALPH, and HILARY J. DEASON. 



1934. Growth of the whitefish, Coregonus 

 clupeaformis (Mitchill), in Trout Lake, 

 northeastern highlands, Wisconsin. 

 Trans. Amer. Fish. Soc. 64:231-237. 



Description of growth of a "dwarf" 

 population of whitefish and a comparison 

 with growth in other waters. 



HILE, RALPH, and HILARY J, DEASON. 



1947. Distribution, abundance, and spawning 

 season and grounds of the kiyi, 

 Leucichthys kiyi Koelz, in Lake Mich- 

 igan. Trans. Amer. Fish. Soc. 74:143- 

 165. 



Analysis of catch data from experi- 

 mental gill nets for records of geo- 

 graphic distribution and study of vertical 

 distribution and regional abundance. 

 Kiyi established as deep-water form 

 taken in numbers in less than 50 fathoms 

 only at times of unusual hydrographic 

 disturbances. Abundance determined to 

 be nearly uniform throughout great 

 central basins, but species was scarce 

 in northeastern island area. Spawning- 

 run samples indicated no movement 

 toward inshore waters and a spawning 

 season extending from late September 

 to mid-Novennber or later. 



HILE, RALPH, and WILLL^M R. DUDEN. 



1933. Methods for the investigation of the 

 statistics of the commercial fisheries 



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