FISHERY BULLETIN: VOL. 80, NO. 3 



FIGURE 4.— Monthly ovary weight- 

 total length regressions for Stenotomus 

 caprinus. The length of each line 

 shows the observed size range. 



i 

 eg 



> 



a. 



< 

 > 

 o 



20 



15 



00 



5 APR 79 



120 130 140 



TOTAL LENGTH (mm) 



150 



£ AGE (days) 



£ 15 I 15 I 15 1 15 1 15 1 15 I 15 1 15 1 15 1 15 1 15 1 15 1 15 ' 15 



MAR APR 



Z 160 



< 



o 



SEP 0C1 NOV 



COLLECTION DATE 



FEB MAP 



80 



7978 YEAR CLASS 

 Y=34.747+0.310x-0.0002x 2 

 100r 2 = 80.03 



95% confidence 



limits tor 



observations 



Range 



200 



AGE (days) 

 10 1 1 5 1 15 1 1 5 1 15 1 15 1 15 1 15 1 15 1 15 1 15 1 15 1 15 1 15 I 15 1 15 1 15 1 15 1 15 I 15 I 15 1 15 1 15 1 15 1 15 I 15 I 15 



MAR APR MAY JUN JUL AUG SEP 0C1 NOV OEC JAN FEB MAR APR MAY JUN JUL AUG SEP OCT NOV DEC JAN FES MAR APR 



COLLECTION DATE 



Figure 5.— Mean observed and pre- 

 dicted sizes at age for the 1978 and 

 1979 year classes of Stenotomus capri- 

 nus. Mean sizes at age (Table 2) were 

 regressed on age after assigned hatch- 

 ing dates of 15 February and 15 March 

 for these respective year classes. Re- 

 gressions were significant at a =0.05. 



virtually all S. caprinus spawn at 12 mo of age 

 has not been reported, nor has the discrete and 

 short duration of spawning been recognized. Sex 

 ratios have not been reported for 5. caprinus, 

 although 1:1 and 1:1.26 male to female ratios 



have been reported for its congener S. chrysops 

 (Smith and Norcross 1968; Morse 1978). The pat- 

 tern of spawning in S. caprinus is several months 

 earlier in timing but similar to S. chrysops which 

 spawns once a year from May through August 



530 



