Where did the green mussel come from?

New Zealand green mussel

* Common name: Green mussel, New Zealand mussel

* Taxonomy: Perna canaliculus

* Natural habitat: Near New Zealand, southern coast of Australia, Chatham Rise, Auckland Islands, Snares Islands, Campbell Islands, Auckland Islands

* Introduced locations: Asia, western coast of North America from Alaska to Southern California, western coast of South America from the Peruvian Coast to the Chubut Province in Argentina, northern and western Mediterranean, Atlantic coast of Europe from Denmark to southern France and the Adriatic Sea, Adriatic Sea