Evaluating the occurrence of cryptic invasions of a rocky shore barnacle, Semibalanus cariosus, between the north-eastern Pacific and Japan

Takefumi Yorisue, Yuki Yoshioka, Kay Sakuma, Akira Iguchi

Research output: Contribution to journalArticlepeer-review

1 Citation (Scopus)

Abstract

Many coastal barnacles are introduced to non-native regions. However, data are lacking on cryptic invasion, which is defined as an invasion that remains unrecognised because the invader is mistaken for a native or previously introduced species or clade. In this work, cryptic invasions of an intertidal barnacle, Semibalanus cariosus, between Japan and the north-eastern Pacific were evaluated based on population genetic analyses. A significant genetic differentiation was found between the Japanese and north-eastern Pacific populations, suggesting a limited introduction of non-native genotypes between these regions. Haplotype frequencies did not differ significantly between the past (museum samples collected in 1971 from Hokkaido, Japan) and present Japanese populations, implying the rare occurrence of human-mediated migration from the north-eastern Pacific to Japan. Migrate-n analysis revealed a low level of directional gene flow in S. cariosus from the north-eastern Pacific to Japan, possibly by natural stepping-stone dispersal via directional water currents or human-mediated transport.

Original languageEnglish
Pages (from-to)183-189
Number of pages7
JournalBiofouling
Volume34
Issue number2
DOIs
Publication statusPublished - 2018 Feb 7
Externally publishedYes

Keywords

  • COI
  • Cryptic invasion
  • Migrate
  • Semibalanus cariosus
  • barnacle

ASJC Scopus subject areas

  • Aquatic Science
  • Applied Microbiology and Biotechnology
  • Water Science and Technology

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