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Great Plains Regiono Aldrich (1949), liall (1952), Jenkins and Hall (1953), 

 Hall, Jenkins and Finnell (1954), and Finnell and Jenkins (1954) have em- 

 phasized the general unsuitability of turbid waters for efficient fish 

 production, and in their most recent writings, Jenkins, Hall, Finnell, 

 et al . have called special attention to the retarding influence of turbid 

 waters on growth of largemouth bass, white and black crappies, and channel 

 catfisho 



Elsewhere the turbidity problem has been considered from a variety 

 of viewpoints. A few investigators have concluded that certain fishes 

 spawn more successfully in turbid waters and that turbidity affords pro- 

 tection and, in some instances, food to young of fishes (Ward, 1938; Doan, 

 1941, 1942; Lagler and Ricker, 1942; Chandler, 1942; Van Oosten, 1948). 

 Others have noted that high turbidities cause loss of eggs or nests, and 

 severely limit or eliminate spawning activities in some areas (Ellis, 1937; 

 Shapavalov, 1937; Ward, 1938; Smith, 1940; Sumner and Smith, 1940; Langlois, 

 1941; Elder and Lewis, 1955). In Illinois, Bennett, Thompson and Parr 

 (1940) noted that fishing success depended upon transparency of the water, 

 and that as turbidity decreased, rate of catch increased. Bennett (1943) 

 further observed that successful bass populations were associated with 

 clear waters, and that less desirable species tended to predominate in 

 turbid waters. Swingle (personal communication) has observed in a large 

 number of Alabama ponds that heavy silt loads during the spawning season 

 prevent the successful reproduction of largemouth bass. Burress (personal 

 communication) has observed in Missouri that largemouth bass spawn more 

 successfully and make more rapid growths in clear than in muddy ponds. 

 Several authors have observed that turbidity effects a loss in fish pro- 



