Invasive species ’spread around world in ships’ ballast tanks’

July 14th, 2009

The spread of invasive species carried across the world in the ballast tanks of ships is causing billions of pounds of damage each year, conservationists warned.

Creatures such as the Chinese mitten crab, which is on the rise in the Thames and other English rivers, have been able to establish themselves in new habitats after being transported from their natural homes in ballast water.

Around 7,000 marine and coastal species travel across the world’s oceans every day, a report for conservation ...

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