V- - 



Table 1. Numbers of live mussels obtained along six transects in 



fleeted and unfleeted areas of the Illinois River at Naples 



No. of 



2 2 



Transect 0.5m Samples Mussels (No./m ) S.D. 



No. Live No./0.5 m' 

 No./m 2 



Control Area 5-4 

 (not to be fleeted) 



441 



5.73 

 (11.46) 



Experimental Area 3-2 

 (to be heavily 

 fleeted) 



7-6 



9-8 



10-9 



8-11 



Total, Experimental 



Area 5 transects 



75 



50 



50 



49 



50 



274 



159 



32 



331 



2.12 

 (4.24; 



0.64 

 (1.28) 



4.46 

 (8.92) 



4.67 

 (9.34) 



6.62 

 (13.24) 



3.55 

 (7.10) 



4.57 



4.82 



4.31 



Table 2 . Numbers of mussel corrals placed in fleeted and unfleeted 

 study plots in the Illinois River at Naples. 



Plot 



Number of 

 Corrals 



Fleeted - Grounded 

 Fleeted - Pilings 



Control - Upstream 

 Control - Downstream 



13 

 4 



Total 



25 



20 



