28 Food of Fishes of Winona Lake 



90 mm. 20 Chironomus larvae; 2 tricoptera larvae; 4 ostracods; plant 



tissue; sand and debris. 

 79 mm. 8 Chironomus larvae; 4 ostracods; mass of plant tissue. 

 99 mm. 38 Chironomus larvae; 4 Chironomus pupa; 8 ostracods; 1 



Physa; algae; debris and sand. 



96 mm. 5 Chironomus larvae; 4 ostracods; 3 Planorbis; 2 tricoptera 



larvae; Potamogeton plant tissue; sand and silt. 

 94 mm. 28 Chironomus larvae; 5 tricoptera larvae; mass of partially- 

 digested animal tissue; algae; sand and silt. 



82 mm. 17 Chironomus larvae; 2 Ceratopogon; 1 Physa shell; a small 



mass of half-digested plant and animal tissue; a few grains of sand 



and debris. 

 69 mm. 9 Chironomus larvae; 3 ostracods; rest of contents consists of 



algae, diatoms and small pieces of Potamogeton. 

 75 mm. 12 Chironomus larvae; stomach well filled with half-digested 



masses of algae. 

 59 mm. 5 tricoptera and cases; 1 Chironomus larva; 3 ostracods; 1 



Physa; 1 water mite; 3 odonata nymphs; 2 Ceratopogon; 2 Chiro- 

 nomus larvae heads; grains of sand and debris. 

 100 mm. 2 tricoptera larvae and cases; 23 Chironomus larvae; 2 fish 



eggs; 7 ostracods; 1 Planorbis; small masses of half-digested algae 



and animal tissue. 

 66 mm. 5 Chironomus larvae; 1 water mite; masses of partially-digested 



animal tissue and debris. 



65 mm. 8 ostracods; 4 Hyalella; 18 Chironomus larvae; 3 aquatic 



oligochaetae; 10 tricoptera larva; algae and debris. 



66 mm. 6 tricoptera; 9 ostracods; 15 Chironomus larvae; Volvox; 



Zygnema; Oscillatoria ; debris. 

 79 mm. 6 ostracods; 3 Cyclops; 3 cladocera; mass of algae and debris; 



stomach well filled. 

 Ill mm. 72 Chironomus larvae; 12 ostracods; 2 midge pupa; algae and 



debris. 

 86 mm. 1 Spinitectus gracilus; 11 Chironomus larvae; 1 tricopteron 



larva; 3 ostracods; 1 Physa; algae; sand and debris. 

 86 mm. 16 Chironomus larvae; 5 tricoptera larvae; 9 cladocera; 8 



ostracods; 2 Physa; algae and debris. 



97 mm. 25 Chironomus larvae; 3 ostracods; 1 Physa; 1 tricopteron larva 



and case; 1 Planorbis; masses of pax-tially-digested animal tissue; 



sand and debris. 

 90 mm. 19 Physa; 4 ephemerida larvae; 1 cladocera; 3 Planorbis; algae; 



sand and debris. 

 64 mm. 3 Chironomus larvae; 2 ostracods; 1 caddis-fly larva and case; 



partially-digested fragments of insect larvae. 

 50 mm. 6 Chironomus larvae; 1 ostracod; algae and debris. 



83 mm. 6 caddis-fly larvae; 40 Chironomus larvae; 7 ostracods; sand 



and debris. 

 90 mm. 1 odonatid nymph; 28 Chironomus larvae; partially-digested in- 

 sect tissue and debris. 



