Appendix B. Results of 1983 quantitative sampling. 



Table Bl. 

 Numbers of live mussels and clams taken in 75 

 0.5-m samples on transect 3-2 from the fleeted area 

 of the Illinois River at Naples. 



Total 



Mean per 

 0.5 nT 



No. of Percent 

 Samples occur- 

 in which rence 

 species 

 occurred 



Fusconaia f lava 

 Megalonaias gigantea 

 Amblema plicata 

 Quadrula quadrula 

 Quadrula pustulosa 

 Quadrula nodulata 

 Arcidens confragosus 

 Lasmigona complanata 

 Anodonta grandis 

 Anodonta imbecillis 

 Obliquaria reflexa 

 Truncilla truncata 

 Truncilla donaciformis 

 Leptodea fragilis 

 Proptera alata 

 Proptera laevissima 

 Lampsilis teres 

 Unidentified 



0.027 



0.162 



Total Mussels 

 Musculium transversum 

 Corbicula fluminea 



