424 
Fishery Bulletin 95(3), 1997 
der were unable to use this habitat type for reasons Temperature may be a factor in the winter floun- 
other than competition with smooth flounder. der’s avoidance of tidal mudflats. Hoff and Westman 
Winter flounder 
Smooth flounder 
25 - 
20 - 
15- 
20 - 
A P ril 
April 
1 o - 
5 - 
- -&L- - I 
25 - 
20 - 
May 
May 
15- 
1 o - 
5 - 
A. 
JUl . 
25 - 
20 - 
15- 
1 o - 
5 - 
| June 20 
k 
| j June 
k 
25 - 
20 - 
15- 
il j ° iy r; 
July 
1 O - 
g «" 
JL_ 
ml i 
=3 ° 
CT 
£> 25- 
LL 
20 - 
20- 
August 
15- 
August 
1 O - 
5 - 
io- 
5- 
Jhb «.L « - O 
o - 
25 - 
20 - 
15- 
1 o - 
5 - 
September 
O 50 1 0O 1 50 200 250 300 
25- 
20 - 
October 
15- 
1 O 
5 - 
ilAli . 
25 - 
20 - 
November 
1 o - 
5 - 
o - 
rrTTTTTTT 1^1 l 1 W 1 l^l TTTTTTTTrTTTT^TnTTTT 
O 50 1 OO 1 50 200 250 300 
Total length (mm) 
Figure 8 
Monthly length frequencies (5-mm size classes) of smooth flounder, Pleuronectes putnami, and 
winter flounder, P. americanus, at site 3, pooled over 1989-91. 
