4N 



4S 



MALE 

 Inner shelf 



FEMALE 



SEXES COMBINED 



3c 

 as 



c = 

 a> 



£ 15 

 a 



°- IT 



Mean length=1 1.4 

 n=82 



u\ 



30 



25 . 

 50 

 15 

 10 , 

 5 



Mean length=9.9 

 n=106 



= ■■ 

 20 



15 



10 

 5 i 



, \ ' , 



Mean length=9.9 

 n=412 





I) 

 1 



c "-' 



O 17 

 0) 



Q. 10 



1 

 i 



o 



1 



c . 





C 10 20 30 40 50 GO 70 BO SO 100 10 20 30 40 50 60 70 B0 90 100 0103330405060,08030 100 



30 . „ 30 . 



Mean length=10.2 

 n=91 



25 ,. 

 20 

 15 

 10 | 



_, 



Mean length=10.2 

 n=84 



?. 

 15 

 10 

 5 







Mean length=9.9 

 n=850 



10 20 30 40 50 R> 70 80 90 100 10 20 30 40 50 GO 70 BO 90 100 10 20 30 

 * . 30 . 30 + 



£20 

 CD 



e is 



O 



Q- id 



5 .. 

 



Mean length=26.9 

 n=61 



25 



20 . 



15 



10 



X 



Mean length=40.2 

 n=51 



25 

 20 

 15 

 10 

 5 



50 60 70 B0 90 100 



Mean [ength=1 1.7 

 n=872 



_L< 



1D2O304O50GO70BC90 100 1O2O3O4O5O6O7OBO9O1DO 10 203040S060 70B090100 



Overall 



c 



Q) 



<U 



a. 10 



Mean length=32.9 

 n=1 7.049 



A^C^ 



— o 



10 30 30 40 SO BO 70 BO 90 100 10 2O3D4050G0 70B030 10O O1O2O3O40S0SO; | 9O3O1I 



Fork length (cm) Fork length (cm) Fork length (cm) 



Figure 29. — Continued. 



Table 22. — fctimated population si/e of walleye pollock age groups and year classes within survey subareas, 1976 Bering Sea spring trawl survey. 





1 



2 



3 



4 



5 



6 



7 



8 



9 



10 



11 



>I2 



Ages 



All aees 



Subarea ; 



1975 



1U74 



1973 



1972 



1971 



1970 



1969 



1968 



1967 



1966 



1965 



- 



unknown 



combined 































Inner shelf 































4N 



296.91 



1.13 



— 



— 



— 



— 



— 



— 



— 



— 



— 



— 



0.05 



298.09 



4S 



1.049.61 



2.47 



0.02 



— 



— 



— 



— 



— 



— 



— 



— 



— 



— 



1.052.10 



I 



1.109.19 



9.09 



1.84 



1.41 



0.02 



0.02 



0.12 



0.26 



0.40 



0.27 



0.40 



0.15 



0.22 



1.123.39 



Outer shelf 































and slope 































3 



(218.05) 



(153.68) 



(81.52) 



(240.27) 



(29.84) 



(8.51) 



(13.64) 



(19.50) 



(20.70) 



(12.06) 



(2.25) 



(0.74) 



(0.33) 



(S01. 09) 



3 Slope 



— 



— 



(0.04) 



(1.76) 



(0.46) 



(0.16) 



(0.27) 



(0.53) 



(0.67) 



(0.40) 



(0.10) 



(0.05) 



— 



(4.441 



2 



(14.94) 



(208.45) 



(306.59) 



(328.74) 



(77.12) 



(34.79) 



(48.13) 



(55.66) 



(41.90) 



(27.33) 



(15.95) 



(4.68) 



(0.38) 



(1.164.66) 



2 Slope 





'6 58> 



(5.40) 



(17.37) 



(4.73) 



(2.58) 



(5.20) 



(6.51) 



(5.29) 



(3.88) 



(2.63) 



(0.81) 



(0.15) 



(61.13) 



All subareas 



combined (2,688.70)(381.4O) (395.41) (589.55) (112.17) (46.06) (67.36) (82.46) (68.96) (43.94) (21.33) (6.43) (1.13) (4,504.90) 

 Proportion 



of total 0.597 0.085 0.088 0.131 0.025 0.010 0.015 0.018 0.015 0.010 0.005 0.001 0.001 



Parentheses indicate estimates that may be badly biased due to sampling problems. 

 ■See Figure 3. 



43 



