Appendix Table 1.— Estimated length composition of yellowfin Appendix Table 2.— Estimated length composition of yellowfin 
tuna caught by American purse seiners in the eastern tuna caught by American purse seiners in the eastern 
tropical Atlantic in 1968. tropical Atlantic in 1969. 
Midpoint Number of fish by month 
Midpoint Number of fish by month 
length 
(cm) | Aug. | Sept. oct. | 
length 
0 39.0 0 0 0 
0 41.0 0 0 
0 43.0 0 0 
0 45.0 1100 0 
0 47.0 1100 0 
.0 49.0 1100 0 
20 51.0 0 0 
0 53.0 0 0 
0 55.0 5502 0 
0 57.0 9903 0 
0 59.0 16505 0 
-0 61.0 2201 0 
-0 63.0 1100 0 
-0 65.0 1100 0 0 
0 67.0 0 0 0 0 
-0 69.0 0 0 3 0 
-0 71.0 0 0 0 0 
0 73.0 0 0 0 0 
0 75.0 0 0 0 0 
-0 5126 77.0 0 0 0 0 
-0 0 79.0 1100 0 0 0 
0 0 81.0 0 0 0 0 
0 0 83.0 0 0 0 0 
-0 0 85.0 0 0 0 0 
0 0 87.0 0 0 0 0 
-0 0 89.0 0 0 0 0 
0 0 91.0 0 721 0 0 
-0 0 93.0 0 0 0 0 
0 0 95.0 0 721 0 0 
0 0 97.0 0 0 0 0 
-0 0 99.0 0 721 0 0 
0 0 101.0 0 0 0 
0 0 103.0 1100 0 0 
0 0 105.0 0 0 0 
0 0 107.0 2201 0 0 
.0 0 109.0 1100 1362 0 
-0 0 10 2201 0 0 
0 0 113.0 1100 3772 0 
-0 0 115.0 0 9150 317 
0 0 117.0 0 12679 0 
.0 0 119.0 1100 19093 0 
0) 0 121.0 0 16464 0 
0 0 123.0 0 10518 317 
-0 0 125.0 1100 6580 0 
-0 0 127.0 1100 5230 0 
0 0 129.0 1100 2807 713 
0 0 131.0 0 0 
-0 0 133.0 1100 83 
0 0 135.0 1100 1937 
.0 0 137.0 0 166 
.0 0 139.0 0 243 
-0 0 141.0 0 326 
0 0 143.0 0 326 
0 0 145.0 0 409 
-0 98 0 147.0 0 1463 
-0 131 0 149.0 0 415 
.0 66 0 151.0 0 1297 
0 33 0 153.0 0 569 
155.0 0 811 
159492 157.0 0 984 
159.0 0 0 1540 
161.0 0 0 1297 
163.0 0 0 811 
165.0 0 0 971 
167.0 0 0 0 
169.0 0 0 243 
171.0 0 0 0 
173.0 0 0 728 
Total 55013 134201 136811 
13 
