18 
Fred C. Rohde and Steve W. Ross 
Table 7. Mean number of food items by length groups in stomachs of Etheo- 
stoma mariae from Naked Creek, North Carolina, in 1978. 
Etheostoma SL (mm) 
Food organism 
<20 
20-29 
30-39 
40-49 
> 49 
Nematoda 
.01 
Crustacea 
Ostracoda 
.25 
.47 
Amphipoda 
.01 
.02 
Insecta 
Plecoptera 
.08 
.34 
.41 
.77 
.11 
Ephemeroptera 
.17 
.35 
.52 
.74 
.33 
Trichoptera 
Hydropsychidae 
.08 
.08 
.31 
.76 
2.78 
Hydroptilidae 
.08 
.03 
.05 
.03 
Limnephilidae 
.02 
.14 
Unidentified 
.01 
.03 
.05 
Coleoptera 
Elmidae 
.06 
Hydrophilidae 
.01 
Diptera 
Anthomyiidae 
.07 
.01 
.03 
Chironomidae 
2.42 
3.49 
4.08 
3.76 
2.33 
Simuliidae 
.08 
.38 
2.87 
5.87 
15.44 
Unidentified 
.22 
Number of stomachs 
with countable 
food items 
12 
89 
108 
62 
9 
A CKNO WLEDGMENTS. — 
We thank S. P. 
Epperly, 
National 
Marine Fisheries Service, 
for assistance in 
collecting and for advice on 
statistical matters. E. F. Menhinick, University of North Carolina at 
Charlotte, and W. M. Palmer, North Carolina State Museum of Natu- 
ral History, Raleigh, provided E. mariae locality data. R. G. Arndt, 
Stockton State College, made helpful comments on drafts of the 
manuscript. W. B. Harris, University of North Carolina at Wilmington, 
provided information concerning the Fall Line. G. W. Link, Jr., Univer- 
sity of North Carolina, gave photographic assistance. We appreciate the 
efforts of Dee Willis in typing this manuscript. 
LITERATURE CITED 
Bagenal, Timothy B., and F. W. Tesch. 1978. Age and growth. Pages 101-136 in 
T. Bagenal, editor. Methods for Assessment of Fish Production in Fresh 
Waters. IBP Handbook No. 3. 3rd ed. Blackwell Sci. Publ., Oxford. 
