<A variety of organisms from Japan cross the sea and have been in various parts of the world. >
Occasionally, it is reported the danger of foreign species such as the hiali and poison spiders that came from abroad in TV and the newspaper, but is not known unexpectedly on the other hand, a variety of organisms of the Japan cross the Sea, In each country, there are few cases that are causing the destruction of ecological systems and industrial activities.
Cross-border foreign species Mondai has become increasingly serious as globalization of trade spreads. Major blow to the ecosystem and water industry of the sea in recent years, marine pollution by waste plastic, such as radioactive water Runaway, but is calling the topic as international news, it has been seen as a problem from the past is a variety of biological destruction of the sea and marine and water industry damage and the like. New Zealand Among the fish farms in the South Island, it is said that the Japan seaweed damage is not unusual. "The mussels that I raised with great pains are ruined" and the voice of the criticism is constant. As of 2017, the survey is spreading damage throughout the country. Brown seaweed from Japan is hanging around the mussels in aquaculture. The mussels will not be able to consume seawater, and it may be difficult to ship because of suffocation or poor growth. I hear that native species of Japan other than wakame are rampaging in other areas. In the United States, "scum" and "Oohari Ali" and made in Japan are very active.