Figure F-1. Recruitment ofunionid mussel species at three sites in Reach 15 of the Upper Mississippi River, 

 1994-95. Length-frequency distributions (Appendix C) were used to calculate percentage (%) 

 and density (no./m-) of individuals within the specified size range. 



Page F-2 



Whitney et al., Unionid Survey - Reach 1 5 UMR 



