FISHES OF THREE WISCONSIN LAKES 37 



Moxostoma bremceps (Cope), short-headed red-horse 

 Ten specimens caught in the slews connecting with Lake 

 Pepin were examined, June 28, July 2. Length: 171-354; aver- 

 age 289. Food: insect eggs .3; chironomid larvae 60.6; mayfly 

 nymphs 1.7; caddis fly larvae 2.8; beetle larvae 1.1; midge 

 pupae 1.2; mites + ; Hyalella .6; cladocerans .1; Daphnia 4.7; 

 Eurycercus .2; Chydorus -f; ostracods .3; snails 1.7; plants 

 11.8; Ceratophyllum .6; algae 1.1; fine bottom sediment 8.7; 

 sand 2.7. One individual contained no food. 



Notropis jejunus (Forbes), shiner 



Ten specimens, caught in a minnow seine alongshore, were 

 examined on June 22, 25. Length: 62-74; average 67. Food: 

 fish 11.1; Corethra larvae .6; midge pupae 2.2; chironomid 

 pupae 9.5; Corethra pupae 16.7; insects 18.9; midges .6; 

 Daphnia 37.2; algae 1.1; filamentous algae 1.1; diatoms .3; 

 Closterium .2; sand .6. One individual contained no food. 



Notropis hudsonius (De Witt Clinton), spot-tailed minnow 

 Ten individuals, caught in a minnow seine alongshore were 

 examined, June 29, July 5. Length: 25-28; average 27. Food: 

 chironomid larvae 2; caddis fly larvae and cases 3; Daphnia 

 51; Ceriodaphnia 42.5; Scapholeberis 1. 



Notropis atherinoides Rafinesque, shiner 

 Six individuals caught with a minnow seine alongshore were 

 examined, July 12, 14. Length: 27-64; average 33. Food: 

 Daphnia 100. One individual contained no food. 



Notropis heterodon (Cope), shiner 



Three individuals were examined, July 5, 7, 9. They were 

 caught in a minnow seine alongshore and each had eaten a single 

 food, respectively: midge pupae, cladocerans, and algae. Their 

 lengths were 35, 35, 40. 



Percina caprodes (Rafinesque), log perch 

 Eleven log perch, caught alongshore, were examined, June 

 25 to July 7. Length: 30-157; average 58. Food: chironomid 

 larvae 56.1; mayfly nymphs 3.3; chironomid pupae 20.8; Hya- 

 lella 1.7; cladocerans .3; Daphnia 1.7; Cyclops 14.1; sand 2. 

 Two individuals contained no food. 



