Table 32 



Number of Fish Caught Per Net-Day in the Lower Illinois River 

 near the Mouth (River Miles 1.0-23.0) in 1942 and 1967 s 



1942: Channel 1942: Channel 1967: 12 Mile 



at Grafton. near Hardin, Island side chann 



RM 1.0-3.0° RM 23. C RM 13. 5-13. 9 d 



T)ata from the files of the Illinois Natural History Survey's River 

 Research Laboratory at Havana. The nets were 1-inch mesh hoop nets 

 probably with wings and leads. 



Total fishing effort, 28.38 net-days. 



C Total fishing effort, 13.92 net-days. 



Total fishing effort, 8 net-days. 



100 



