Invasive alien species constitute the greatest threat to marine biodiversity after habitat destruction. The problem today is growing tremendously, as the introduction of these species is accelerated by activities related to globalisation, such as trade, transport, and tourism. The current book presents possibilities to stimulate the international regime to address the problematic alien invasive species issue. Apart from the relevant multilateral environmental treaties and soft law instruments, other tools are assessed as well, such as marine protected areas and means to improve compliance, including economic instruments. The focus is on how to strengthen the existing regime and promote effective implementation of the relevant provisions. This book will be of interest to academics in the field of international environmental law and the law of the sea, and addresses national, European and international policy-makers responsible for the protection of the marine environment, as well as practitioners in the marine transport sector.