Alien species from ballast water: How does it affect the North Sea region? Corporate author North Sea Foundation 2001 Date 2001 Source IUCN (ID: MON-067191) Publisher | Place of publication North Sea Foundation 2001 | Utrecht, Netherlands Pages 23 p. Document type Miscellaneous Language English Country/Territory Netherlands Subject Sea, Wild species & ecosystems Keyword Marine area Alien species Management/conservation Navigation Wild fauna Wild flora Geographical area North Sea