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Eradication of invasive alien crayfish: past experiences and further possibilities
Island and Ocean Ecosystems, BRB
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Sandodden, R.

2019
The EU regulation 1143/2014 “On the prevention and management of the introduction and spread of invasive alien species” entered into force on 1 January 2015. On 13 July 2016, the EU list of invasive alien species that require action was adopted. The list includes ?ve di?erent cray?sh species. Member states will be required to take measures for early detection and rapid eradication of these species. Except for some eradications performed in the United Kingdom and Norway, there has not been much e?ort put into eradication of invasive cray?sh species throughout Europe. The reasons for this are probably complex and di?er between member states. Are the main reasons legislative constraints, ability to eradicate or lack of knowledge and experience? Is eradication of alien cray?sh possible and desirable, and what is left to save in Europe? Focus could be put into identifying or creating island populations of special concern and preserve them for the future survival of European native cray?sh populations. Eradication measures should be considered as an option in this work. What are the experiences from completed eradication e?orts in Europe? Two cray?sh eradications have been performed in Norway, and both have been successful. The eradications were performed in locations with several ponds and small streams and performed using the synthetic pyrethroid-based pharmaceutical BETAMAX VET®. Both legislative and funding constraints seem less prominent as successful eradications have been con?rmed. Time will show if this trend will spread throughout Europe.