levee at the north end of the lake Included Banunculus , Chara, Myriophyllum and Cera- 

 tophyllum. These latter kinds evidently came from the truckload planted In May. 



RESTOCKING WITH LARGEMOUTH BASS AND BLUEGILLS 



Plans for restocking were discussed with members of the Sportsmen's Club, and It 

 was decided to use largemouth bass and bluegllls In order to test this combination 

 further for high production of hook-and-llne fish, (See Lake Management Reports, 

 2. Fork Lake near Mount Zlon, Illinois, referred to previously). Plantings have been 

 made from a number of sources and at various times since the second poisoning on June 14. 

 These are listed In table 19. 



TABLE 19.— DATA ON RESTOCKING OF SPORTSMEN'S LAKE. 



When planted, all of the bluegllls were large enough to spawn. Approximately 20 

 per cent of the bass will be of spawning size In 1939. Occasional fly-flshlng in the 

 early fall of 1938 showed that the bass planted on August 18 were growing rapidly. 



Although the Sportsmen's L^tke levee was topped by the flood of March, 1939, we be- 

 lieve that, because the water was cold, there was little or no movement of fishes be- 

 tween the small experimental lake and the rest of Lincoln Lakes . During this flood 

 there was Ice along the shores, and on the afternoon of the first day the water temper- 

 ature was 34 degrees Fahrenheit. 



On the second flood, a month later, which Is reported to have connected Sportsmen's 

 Lake with the rest of Lincoln Lakes on April 16-17, we do not have such detailed In- 

 formation as on the first. We know that the air temperature of the Lincoln weather sta- 

 tion at this time was somewhat above freezing, but the probability is that the water 

 temperature at that time was not high enough to encourage fish movement. 



We are supporting the belief that there was not much fish movement In either of 

 these floods by our experience at Horseshoe Lake when it was flooded for a much longer 

 period in January and February, 1937.* Observers reported that at the time of the Salt 

 Creek floods of 1939 there was no current through Sportsmen's Lake to encourage the 

 movement of fishes. 



The number of bass stocked in Sportsmen's Lake is greater than the number poisoned 

 and will be augmented by the 1939 spawn. Unless there was more fish movement during the 



•N- Thompson, David H,, and George W. Bennett. Lake Management Reports. 1. Horseshoe 

 Lake near Cairo, Illinois. Illinois Natural History Survey Biological Notes No. 8. 

 September, 1938. 



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