relative abundance (7.7%) but CPUEn was only 11 .50 in 1 996, compared to 438.50 

 in 1 995. As during all other segments of project F-1 01 -R, common carp CPUEn was 

 low in 1996 (3.00); the highest catch rate of carp since 1989 in Starved Rock Reach 

 was only 9.00 per hour (in 1993). Unlike other recent years, bullhead minnows were 

 not collected in any upper river reach in 1996. Bluntnose minnows were not 

 collected in either Starved Rock or Marseilles reaches. 



The overall species composition of the upper watenz/ay was different than the 

 lower and middle river in that no channel catfish, white bass, or black crappies were 

 collected in the upper watenA'ay, but each made the 95% list for the lower and middle 

 river (Table 7). Bluntnose minnow, goldfish, red shiner, spottail shiner, green 

 sunfish, orangespotted sunfish, and rock bass made the 95%o list for the upper 

 waterway but did not occur in reaches of the lower and middle river. 



Marseilles (upper river). Eleven species accounted for 95.5% of the total 

 catch in Marseilles Reach (Tables 6 and 7), Overall, CPUEfj was 102.56 in 1996, 

 This catch rate is much lower than the overall CPUE,, of 356.80 obsen/ed in 1995, 

 but is similar to other years of project F-1 01 -R for Marseilles Reach (Lerczak et al. 

 1994, 1995, and 1996). High CPUEfj in 1995 was primarily due to gizzard shad and 

 an abundance of small cyprinids and bluegill In 1996, the highest CPUEf^ for all 

 species was 63.08 for gizzard shad, which made up 61.5% of the total fish collected 

 at this reach. This catch rate is the second highest observed at this reach since 

 1989 (CPUEf.j was 90.00 in 1995) (Lerczak et al. 1994, 1995, and 1996). Bluegill 

 ranked second by relative abundance (6.0%) but CPUE,j was only 6.15 in 1996, 



18 



