Table 6.—Catch and number of length-frequency samples of bigeye 
tuna caught by the American purse seine fleet in the 
eastern tropical Atlantic. 
Number 
of 
samples 
19,700 
29,400 
10,600 
41,200 
9 
8 
: 1968 
6 
5 
4 
2 
| 
9 
8 
— Sa 197] 
oO 
= 6 
5 5 
S 4 
. 3 
a 
= | 
5) 
Oo 
Ww 9 
a 
8 
7 1972 
6 
5 
3 
2 
| 
O 
4 
3 
5 1973 
| 
7 
6 
5 1974 
4 
3 
2 
| 
10) 
30 40 50 60 70 80 90 100 —s« HO 120 130 140 ~=—150 160 170 180 190 200 
FORK LENGTH (cm) 
Figure 4.—Estimated length composition of bigeye tuna caught by American seiners in the eastern tropical 
Atlantic, 1968 and 1971-74. 
8 
