Concerns for exotic seaweed on Aotea Great Barrier Island

Concerns are mounting about the spread of an exotic seaweed on Aotea Great Barrier Island. The caulerpa weed can cause devastating environmental damage and a ban on anchoring and fishing is already in place in some areas. But there are calls for more urgent action heading into the busy summer season. Barry Scott is the Deputy Chair of the Aotea Great Barrier Environmental Trust.