From: Consequences of the historical demography on the global population structure of two highly migratory cosmopolitan marine fishes: the yellowfin tuna (Thunnus albacares) and the skipjack tuna (Katsuwonus pelamis)
Allele*
Region
n
AT
AC
GC
Pacific
80
0.31
0.24
0.45
Atlantic
49
0.18
0.51