MAY JUNE JULY AUG SEPT 



o 



LU 

 IT 



a: 



Ld 

 Q_ 



25 

 24 

 23 



22 



21 



20 H 

 19 

 18 

 17 

 16 

 15-1 

 14 

 13 

 12 

 II 

 10 



▼ T 



OCT NOV 



DEC 



JAN 



FEB MAR APR 



MAY 



Figure 1. — Temperature-photophase regime used to condition northern weakfish, Cynoscion regalis, to spawn 

 in the laboratory. Values are 7-d means. Standard deviations are plotted for temperature. Arrows on time axis 

 indicate dates of spawning. A = 1984-85. B = 1985-1986. 



169 



