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(1938) Report of Coarse Fish Removal Operations by O. J. Koch, Coarse Fish Removal Operations to E. B. Speaker, 1938. Natural Resources, Department of
(1938) Iowa Fish Management by W.W. Aitken, January 1938. Natural Resources, Department of
(1950) Handbook of Freshwater Fishery Biology, 1950. Natural Resources, Department of
(1951) A Check List of the Fishes of Iowa with Keys for Identification by Reeve M. Bailey, 1951. Natural Resources, Department of
(1956) A Revised List of the Fishes of Iowa with keys for Identification by Reeve M. Bailey, 1956. Natural Resources, Department of
(1971) Commercial Fishery Statistics for Iowa, 1971. Natural Resources, Department of
(1973) For Better Fishing, Rathbun Fish Hatchery, 1973. Natural Resources, Department of
(1973) Sport Fishery Harvest at Spirit Lake, 1973-74 by R.H. McWilliams, 1973. Natural Resources, Department of
(1974) Effects of Flood Water Management and Fish Species Introduction on Fish Populations in Large Reservoirs by Vaughn L. Paragamian, 1974. Natural Resources, Department of
(1975) Federal Aid to Fish Restoration Annual Performance Report, Man-Made Lakes Fisheries Investigations, 1975. Natural Resources, Department of
(1975) Federal Aid to Fish Restoration Annual Performance Report, Man-Made Lakes Fisheries Investigations, 1975b. Natural Resources, Department of
(1975) Annual Performance Report, Cold Springs and Spirit Lake Research Stations, 1975. Natural Resources, Department of
(1975) Iowa Fisheries Research Technical Series No. 75-1 Variations in the abundance of channel catfish year classes in the upper Mississippi River and causative factors Don R. Helms, Fishery Research Biologist Fisheries Section Jerry M. Conley, Superintendent of Fisheries December, 1975. Natural Resources, Department of
(1976) Federal Aid to Fish Restoration Annual Performance Report, Man-Made Lakes Fisheries Investigations, 1976. Natural Resources, Department of
(1978) Assessment of Change in Commercial Size Limit of Channel Catfish, Fisheries Investigations, 1978. Natural Resources, Department of
(1979) Biological Control of Nuisance Aquatic Vegetation by Grass Carp by Larry Mitzner, Iowa Fisheries Research, June 1979. Natural Resources, Department of
(1981) Annual Report of Iowa Cooperative Fishery Research Unit, 1981. Natural Resources, Department of
(1981) Physical Inventory of Trout Streams and Survey of Trout Angler Attitudes by Vaughn L. Paragamian, 1981. Natural Resources, Department of
(1982) Fishing in Iowa, A Survey of Iowa Anglers, February 1982. Natural Resources, Department of
(1982) Sport Fishery Harvest at Spirit Lake, 1972-1973 by R.H. McWilliams, 1972. Natural Resources, Department of
(2006) Does Health Information Matter for Modifying Consumption?, October 2006. Iowa State University
