Mr. Gollasch, the new report of the International Biodiversity Council has just been published. According to the report, introduced invasive animals and plants play a much larger role than previously thought in biodiversity loss. What part do ships have in this?

Ships unintentionally transport large numbers of organisms from coast to coast: mussels and other sedentary animals travel as growths on the ship's side, other creatures swim in the large ballast water tanks.

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