Table A-1. Summary of quantitative unionid mussel sampling in Reach 15 of the Upper 

 Mississippi River during surveys conducted by the Illinois Natural History Survey 

 between (a) 1994-95 and (b) 1983-87. 



Table A-2. Mean, standard deviation (SD), and range of live mussel densities (no./m-) from 

 three sites in Reach 1 5 of the Upper Mississippi River sampled between (a) 1994-95 

 and(b) 1983-87 



Page A-2 



Whitney et al., Unionid Sun'ey - Reach 1 5 UMR 



