;4pJiieHdCz S 



MERAQE BODY VOLUME OF MAJOR ORGANISMS FOUND IN FISH STOMACHS 



Insects Vol. (ml) 



Baetis sp. .0034 



Heptagenia elegantula .0087 



Rhithrogena undulata .0065 



Traverella albertana .0156 



Isoperla sp. .0040 



Isogenus sp. .0667 



Hydropsychidae .0123 



Sirmliim sp. .0028 



Chironomidae .0010 



Fish 



Hybopsis graa-Llis 2.00 



Hybopsis gelida 0.82 



Hybognathus sp. 0.92 



Rhiniohthys cataraatae 1 . 85 



latalums punatatus 0.78 



Noturus flavus 2.91 



NOTE: These average volumes were derived by dividing the total volume 



of each category of food organisms (determined by water displacement in a 

 graduated receptacle) by the number of organisms in each category. 



161 



