216 College of Forestry 
Not enough field work has been done or stomach examina- 
tions made to furnish the quantity of data necessary to sum- 
marize the relation of the mollusks to the fish fauna of Oneida 
Lake. We should expect that there was an intimate relation- 
ship between the conditions favorable for molluscan hfe and 
the food of the fish, and from a knowledge of the biology of 
the lake one should be able to predict, within reasonable 
limits, the food of a certain kind of fish in a given habitat. 
This correlation between the mollusk, the fish, and the 
environment is interesting, and a knowledge of it 1s 1mport- 
ant from the standpoint of fish culture. An attempt is made 
in Table No. 15 to show the correlation expressed by four 
species of Oneida Lake fishes and the Mollusca found on 
their feeding grounds. 
