Abundance of shortnose gar, smallmouth buffalo, 

 and river carpsucker remained rather stable 

 after 1957, while abundance of sauger and drum 

 increased. The silvery minnow, which was very 

 abundant following impoundment, was replaced 

 by the emerald shiner as the dominant cyprinid. 

 Young-of-the-yea/ gizzard shad was the most 

 abundant forage species. Survival of juvenile 

 gizzard shad to their second summer was appar- 

 ently related to the number of days of reservoir 

 ice cover during the previous winter. 



Life -history observations were conducted 

 on the fishes collected to determine (1) age and 

 rate of growth, (2) age -class composition, (3) 

 habitat preference, (4) period of spawning, and 

 (5) reproductive success. Fish reproduction and 

 growth were generally good for all species 

 during the first year of impoundment, but poor 

 for most species after that time. Specific 

 reasons for reduced reproductive success and 

 growth are unknown, but they may be related to 

 the pattern of water level fluctuation. 



Except for white bass, fish stocking in 

 Lewis and Clark Lake was apparently ineffectual. 



The reservoir fish population did not 

 appear to attain stability during the period of 

 study. The population produced with the present 

 schedule of water management will probably be 

 dominated by river carpsucker, catp, fresh- 

 water drum, white crappie, sauger, channel 

 catfish, and white bass. 



LITERATURE CITED 



BAILEY, REEVE M., ERNEST A. LACHNER , 

 C.C. LINDSEY, C. RICHARD ROBINS, PHIL 

 M. ROEDEL, W.B. SCOTT, and LOREN P. 

 WOODS. 



1960. A list of common and scientific names 

 of fishes from the United States and Canada. 

 American Fisheries Society. Special Pub- 

 lication No. 2. 2d edition. 102 pp. 



BAILEY, REEVE M., and MARVIN O. ALLUM. 

 1962. Fishes of South Dakota. Museum of 

 Zoology, University of Michigan, Miscella- 

 neous Publications , No. 119. 131pp. 



BAILEY, REEVE M., and FRANK B. CROSS. 

 1954. River sturgeons of the American genus 

 Scaphirhynchus: characters, distribution, 

 and synonymy. Papers of the Michigan 

 Academy of Science, Arts, and Letters, 

 vol. 39, pp. 169-208. 



BUCK, D. HOMER. 



1956 . Effects of turbidity on fish and fishing. 

 Oklahoma Fisheries Research Laboratory, 

 Report No . 56 . 62 pp . 



CARLANDER, KENNETH D. 

 1953 . Handbook of freshwater fishery biology, 

 with the first supplement. Wm . C. Brown 

 Co., Dubuque, Iowa. 429pp. 



FINNELL, J.C, and R.M. JENKINS. 



1954. Growth of channel catfish in Oklahoma 

 waters^ 1954 revision. Oklahoma Fisheries 

 Research Laboratory .Report No. 41. 37 pp. 



HARLAN, JAMES R. and EVERETT B. SPEAKER. 



1951. Iowa fish and fishing. Iowa State Con- 

 servation Commission, 2d edition. 184 pp. 



HASSLER, WILLIAM W. 



1957. Age and growth of the sauger, Stizoste- 

 dian canadense canadense (Smith) , in 

 Norris Reservoir, Tennessee. Journal of 

 the Tennessee Academy of Science, vol. 32, 

 No. 1, pp. 55-76. 



JENKINS, ROBERT M., EEXiARM. LEONARD, 

 and GORDON E. HALL. 



1952. An investigation of the fisheries re- 

 sources of the Illinois River and pre- 

 impoundment study of Tenkiller Reservoir, 

 Oklahoma. Oklahoma Fisheries Research 

 Laboratory, Report No. 26. 136 pp. 



KRAMER, ROBERT H., and LLOYD L. SMITH, JR. 

 1962. Formation of year classes in largemoutli 

 bass. Transactions of the American Fisheries 

 Society, vol. 91, No. 1, pp. 29-41. 



KUEHN, JEROME H. 



1949. Statewide average total length in inches 

 at each year . Minnesota Fisheries Research 

 Laboratory, Supplement to Investigational 

 Report No. 51 (2d revision). 



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