80 
Burr, Kuhajda, Dimmick, and Grady 
Table 3. Stomach contents of Noturus furiosus from the Tar and Neuse river 
drainages, North Carolina, by size class of madtom. Figures to the 
left are percentages of diet derived from each food organism; 
parenthetical figures are percent of stomachs in which food organism 
occurred. 
Size Class 
Food 
<40 mm 
41-70 mm 
>71 mm 
Organism 
(N = 60) 
(N = 26) 
(N = 8) 
Nematoda 
• 
0.8 (3.8) 
4.3 (12.5) 
Annelida 
Oligochaeta 
0.4 (1.7) 
2.5 (11.5) 
Hirudinea 
0.9 (1.7) 
Insecta 
Ephemeroptera 
26.9 (58.3) 
16.0 (23.1) 
47.8 (25.0) 
Heptageniidae 
0.9 (3.3) 
0.8 (3.8) 
Caenidae 
0.8 (3.8) 
Baetiscidae 
5.1 (11.7) 
0.8 (3.8) 
Odonata 
4.7 (8.3) 
5.0 (7.7) 
17.4 (50.0) 
Anisoptera 
0.4 (1.7) 
0.8 (3.8) 
Gomphidae 
8.7 (12.5) 
Zygoptera 
4.3 (12.5) 
Coenagrionidae 
Plecoptera 
0.4 (1.7) 
0.8 (3.8) 
4.3 (12.5) 
Pteronarcyidae 
0.8 (3.8) 
Hemiptera 
Coleoptera 
0.9 (3.3) 
0.8 (3.8) 
Elmidae 
2.6 (8.3) 
27.7 (15.4) 
4.3 (12.5) 
Trichoptera 
3.4(10.0) 
8.4(19.2) 
8.7 (25.0) 
Hydropsychidae 
17.9 (35.0) 
5.0 (15.4) 
Brachycentridae 
0.8 (3.8) 
Lepidostomatidae 
Diptera 
0.8 (3.8) 
Culicidae 
2.5 (7.7) 
Chironomidae 
32.5 (46.7) 
23.5 (30.8) 
Simuliidae 
3.0 (11.7) 
0.8 (3.8) 
