March, 1963 



Larimore & S.mith: Fishes of Champaign* County 



345 



in relation to stream size in at least three 

 of five drainage systems in the county : 



Caiostomus commersoni 



Erirnyzon oblongus 



Hypentelium nigricans 



Cyprinus carpio 



Ericymba buccata 



Ictalurus natalis 



Lepomis cyanellus 



Eiheostoma spectabile 

 Because of great variation in habitat 

 succession among Champaign Count)" 

 streams, we might suppose that the species 

 showing some consistency in distribution 

 pattern in relation to stream size were 

 those adapted to a wide variety of habitat 

 conditions or to a set of conditions closely 

 related to stream size. The following spe- 

 cies apparently were not adapted to these 

 conditions, for their distribution patterns 

 showed no consistencv from stream to 



stream and little correlation with stream 

 or drainage size : 



\otropis chrysocephalus 



\otropis stramineus 



Notropis umbratilis 



\oturus gyrinus 



Lepomis megalotis 



Etheostoma blennioides 



Etheostoma nigrum 



Percina mac ul at a 

 Thompson 5: Hunt suggested that the 

 place of greatest abundance- of a species 

 might be related to a specific stream 

 size. In 1959, each species listed below 

 was taken in greatest abundance in a spe- 

 cific stream size in each drainage: 



Aloxostoma erythrurum 



Campostoma anomalum 



Hybopsis biguttata 



A otropis spilopterus 



Semotilus atromaculatus 



Table 22. — Darters. Average numbers of each of several species taken in the 1959 sur\ey 

 (quantitative samples only) in streams of various size ranges. Each species average is for only 

 those stream systems in which the species occurred in the quantitative collections. 



Species 



Dr.mnage Area of Stream ik Square Miles at 

 Point of Collection" 



4- 



-8- 



-16- 



-64- 



-128- 



!56 512 



Etiieosto 



Etheosto 



Percina 



Etheosto 



Etheosto 



Etheosto 



Percina 



Percina 



Etheosto 



ma nigrum 

 ma spectabile 



maculata 



ma flabellare* 

 ma caeruleumf^. 

 ma blennioides^ . 



caprodes% 



phoxocephalc^ _ 

 ma zonale 



*Salt Fork. Middle Fork, and Sangamon only. 



fAll stream? except Sangamon. 



iSalt Fork, Middle Fork, and Embarrass only. 



.SKaskaskia, Sangamon, and Embarrass only. 

 ""Sangamon and Middle Fork only. 



I Sangamon only. 



J. 5 

 0.2 

 0.4 

 0.1 



0.1 

 0.1 

 0.3 

 0.2 



Table 23. — Miscellaneous fishes. .Xverage numbers of each of several species taken in the 

 1959 survey quantitative samples onhM in streams of various size ranges. Each species average 

 is for only those stream systems in which the species occurred in the quantitative collections. 



Species 



Draik.age Area of Stream iv Square Miles at 

 Point of Collection 



4- 



-16- 



156 512 



*A11 streams except Middle Fork. 

 tSangamon, Embarrass, and Kaskaskia only. 

 :|Embarrass, Kaskaskia, and Middle Fork only. 



§Sangamon only, 

 tSalt Fork only. 



