BECKER: SEDIMENT AND SEX SEGREGATION IN ENGLISH SOLE 



CB-5 illij CB-1 



CB-4 



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MARCH MAY-JULY AUGUST NOVEMBER 



1982 1981 1982 1981 



SAMPLING PERIOD 



Figure 3.— Comparisons of male proportion of English sole populations at three Commencement 

 Bay stations during four sampling periods using the G-test. Mean abundance of English sole at 

 all three stations is plotted for each sampling period. The values of percent fine-grained sedi- 

 ment at Stations CB-5, CB-1, and CB-4 were 7.6%, 27.1%, and 71.6%, respectively. ' = P < 

 0.05, ••• = P< 0.001. 



a spawning component of 0.9% during that period. 

 No fish were found to be in spawning condition dur- 

 ing August and November. 



For English sole aged 3-10 years old during the 

 1984 study, male proportion for each age-class 



ranged from 0.50 to 0.66 (Fig. 4). However, the 

 heterogeneity among age-classes was not significant 

 (P > 0.05). Nineteen fish aged 2 or >10 years old 

 were not included in this analysis because sample 

 sizes by age-class were too small. 



OC 



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Q. 



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DC 

 Q. 



LU 



0.8 -1 



0.6- 



0.4 



0.2- 



126 217 261 209 97 40 24 14 



Figure 4.— Comparison of male proportion among age- 

 classes of English sole collected in 1984. Sample size 

 is presented above each bar. 



T 1 \ \ \ 1 I r 



3456789 10 



FISH AGE (yr) 



521 



