Marine menace : alien invasive species in the marine environment

More than 70% of the earth is covered by oceans and major seas and there are more than 1.6 million kilometres of coastline. Yet our marine world is under threat: the most insidious is the one posed by marine invasive species. This booklet does not present new or primary information, but rather a synthesis of current issues and trends, including several examples of some of the worst marine invasive species, their spread and impact. It is targeted at the general public to highlight an important but often overlooked issue, and to serve as a source of information and inspiration.