Invasion

Invasion Description

Type Locality- Hokkaido/Japan/Akkeshi-Ko estuary (2014, Ito et al. 2015, on Zostera marina, Eelgrass)

Geographic Extent

Hokkaido/Japan/Akkeshi-Ko estuary (2014, Ito et al. 2015, on Zostera marina, Eelgrass); Notsuke peninsula, Hokkaido/Japan/Pacific Ocean (Dick et al. 2020, 43 43 N; 145 19 E)

Low genetic diversity of the Japanese population, suggests that it could represent a recent range expanison from the Russian coast (Ito et al. 2019)