Invasive Species Compendium

Detailed coverage of invasive species threatening livelihoods and the environment worldwide

Abstract

The non-indigenous mytilid mussel Xenostrobus securis (Lamarck, 1819) found in Sakata City, Yamagata Prefecture, Japan.

Abstract

The non-indigenous mytilid bivalve Xenostrobus securis (Lamarck, 1819), native to Australasia, has spread along the coasts of western Japan since 1972. I found live shells of the species at two sites, Sakata Port (38°56′23″ N, 139°48′45″ E) and Ohama Canal (38°58′04″ N, 139°48′42″ E) in Sakata City, Yamagata Prefecture, Japan, in July 2014. These finds represents the northernmost distribution record of this species in Japanese waters. I discuss the population status, vectors and route of introduction into the sites.