Genetic properties of the yellowtail amberjack species group collected from the high seas in the northwest pacific ocean and the tasman sea

Abstract

To clarify the population structure based on the genetic differences in three species of yellowtail amberjacks (Seriola lalandi, S. dorsalis and S. aureovittata) distributed in the high seas, we genetically analyzed mtDNA regions (ND4, CR and COI) of samples from the Northwest Pacific Ocean (coastal areas of Japan, high seas of the Northwest Pacific Ocean and the waters around Emperor Seamounts), and the Tasman Sea. As a result, there was no genetic difference between the samples of the Northwest Pacific Ocean, but there was a significant difference between samples of the Northwest Pacific Ocean and the Tasman Sea.