Further spread of Undaria in Breaksea Sound
March 2019: Restrictions on anchoring, mooring, gear and water movement are still in place in Breaksea Sound. Since December 2017 restrictions have been put in place within the Controlled Area in the Beach Harbour-John Islands area of the Sound to help slow the spread of the invasive Asian kelp Undaria pinnatifida (Undaria) from a known infestation.