J/8^' The extreme scarcity of forage species^ partictilarly gizzard shad, 

 limited growth and development of bass, crappies, and other carn- 

 ivorous sneer- es at Hayburn, ; ^^JK^ )LoA^ ^ y^UL4a.K<.r9^\. ^ 

 '1^; " Heybtim largemouth bass and white crappie populations'^exhibited " '-^M. 

 unusual dominance by older individuals. This seemed to be due to 

 successively smaller year classes as a result of increasing tur- 

 bidities, 



l^fr In 1954; the average volume of net plankton in aurfaee waters was . 

 13.8 times greater iiv\l ^ pe r Spa Tiaaw than in/^ffeybumv and average 

 volume from the 60-foot depth at the clear reservoir was greater 

 than the combined total from surface, 15-foot depth, and 30-foot 

 depth in the muddy reservoir. This contrast was less marked in 

 1955, possibly due to somewhat lower average turbidities at Haybmna-. ^-^«^«AtT^M.^ 



16 1 The clear reservoir attracted more anglers, yielded greater returns 

 per unit of fishing effort, as well as more desirable species, and 

 was immeasurably more appealing in the aesthetic sense. 



