604 
Fishery Bulletin 99(4) 
Table 1 
Numbers of fin spines and rays of Thunnus thynnus larvae and juveniles. Roman and Arabic numerals show numbers of spines 
and soft rays, respectively. 
Size range 
(BL; mm) 
First dorsal 
fin 
Second dorsal 
fin 
Dorsal 
finlet 
Anal 
fin 
Pectoral 
fin 
Pelvic 
fin 
Number of 
specimens examined 
BL <5.99 
0 
0 
0 
0 
0 
0 
10 
6.00-6.99 
I-X 
0 
0 
0-6 
0-13 
0-1+ 1 
17 
7.00-7.99 
0-XIV 
0-13 
0-8 
0-12 
0-31 
0-1+5 
13 
8.00-8.99 
IX-XIV 
12-14 
6-9 
7-14 
11-31 
1+4— 1+5 
11 
9.00-9.99 
XI-XV 
14 
8-9 
13-14 
16-31 
1+5 
8 
10.00-19.99 
XIV-XV 
14 
8-9 
14 
31-34 
1+5 
14 
20.00-29.99 
XV 
14 
8-9 
13-14 
31-36 
1+5 
19 
30.00-37.78 
XV 
14 
8-9 
14 
31-35 
1+5 
8 
