Armstrong: Distribution and abundance of Pleuronectes putnami and Pleuronectes americanus 
427 
Smooth flounder 
Winter flounder 
Total length (mm) 
Figure 1 1 
Monthly length frequencies (5-mm size classes) of smooth flounder, Pleuronectes putnami, 
and winter flounder, P. americanus, at site 4, pooled over 1989-91. 
est overlap in habitat use seen for smooth and win- 
ter flounder may be associated with an abundance 
of some resource, for example, a shared prey item(s). 
The upper Great Bay Estuary is an important area 
for both species. This study has shown the dynamic 
nature of habitat use by smooth and winter floun- 
