compared to 42.40 in 1995. The iargemouth bass catch rate on this reach was 4.62 

 and was comparable to other reaches sampled in 1996 (high Iargemouth bass 

 CPUEfj was 7.38 in Peoria Reach). 



Dresden (Des Plaines River). Ten species accounted for 93.6% of the total 

 catch in Dresden Reach (Tables 6 and 7). Overall, CPUEf, was 101.50 in 1996. 

 This catch rate is much lower than the overall CPUEfj of 600.00 observed in 1 995, 

 and IS the lowest for Marseilles Reach since 1992 (Lerczak et al 1994, 1995, and 

 1996) High CPUEfj in 1995 was primarily due to an abundance of bluntnose and 

 bullhead minnows and bluegill; CPUEfj of bluntnose minnow was only 1.00 in 1996, 

 and no bullhead minnow were collected. The highest CPUEfj for all species was 

 39.50 for gizzard shad, which made up 38.9% of the total fish collected at this reach. 

 Gizzard shad CPUE;.j was similar to other segments of project F-1 01 -R. Highest 

 gizzard shad CPUEfj for Dresden Reach was 50.50 in 1995. Bluegill ranked second 

 with a CPUEf. of 14.50 (14.3% of the total), and all other species made up only 8.4% 

 or less of the total catch at Dresden Reach The bluegill catch rate v/as much lower 

 than observed in 1995 (83.00), but was comparable to other recent years. The catch 

 rate of common carp of 6.00 per hour in Dresden Reach was similar to all other 

 waterv/ay reaches (CPUEfj ranges 3.00 at Starved Rock to 7.20 at Alton, except for 

 La Grange Reach, where CPUE,j of common carp was 36.36) 

 Catch Rates in Weight (pounds) Collected per Hour by Reach . 

 In the following data summary, discussion is restricted to species that each 

 separately accounted for over 10% of the total catch and to species that were of 



19 



