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Exotic Caulerpa - New Controlled Area Notices in force on 1st October

Exotic Caulerpa - New Controlled Area Notices in force on 1st October

October 2nd 2025 Biosecurity New Zealand has updated the legal controls for parts of the upper North Island to help prevent the spread of exotic caulerpa seaweed. There are now two categories of controls that Read more

Looking at the future of Exotic Caulerpa Controlled Area Notices

Looking at the future of Exotic Caulerpa Controlled Area Notices

September 4th 2025 Biosecurity New Zealand is inviting interested groups and individuals to provide input into a review of the Controlled Area Notices (CANs) that are being used to prevent spread of exotic caulerpa Read more

Exotic Caulerpa Response Update - August 2025

Exotic Caulerpa Response Update - August 2025

August 12th 2025 Since late 2024, NIWA (now Earth Sciences New Zealand (ESNZ)) has been researching biomass changes in exotic caulerpa. The scientists say these declines were mostly on soft, sandy seabed, while Read more

Exotic Caulerpa Response Update - July 2025

Exotic Caulerpa Response Update - July 2025

July 11th 2025 New biosecurity rules are in place at Hauturu o Toi Little Barrier Island, making it illegal to anchor anywhere around the island without a permit from Biosecurity New Zealand. So far, 17 small Read more

Exotic Caulerpa Response Update - May 2025

Exotic Caulerpa Response Update - May 2025

May 8th 2025 Two of the three significant projects to fast-track caulerpa removal tools are currently under trial in Omakiwi Cove in the Bay of Islands and will shortly move to the Hauraki Gulf. Read more

Exotic Caulerpa Response Update

Exotic Caulerpa Response Update

March 7th 2025 Contracts have been awarded for three projects to drive improvements in technology to control exotic caulerpa seaweed. The three projects share the $10 million funding injection announced last year Read more

Restrictions in place for parts of Waiheke Island; new location found near Kawau

Restrictions in place for parts of Waiheke Island; new location found near Kawau

December 19th 2024 New biosecurity controls are in place over an area of Waiheke Island waters to prevent the spread of the invasive seaweed exotic caulerpa. The controlled area notice (CAN) comes into force at Read more

Exotic Caulerpa Response Update

Exotic Caulerpa Response Update

June 27th 2024 The two exotic caulerpa Controlled Areas (at Aotea/Ahuahu and Te Rāwhiti Inlet) are set to be extended from their current expiry date of 30 June to allow further planning and consultation with all Read more

Exotic caulerpa detection in Fantail Bay, Coromandel Peninsula

Exotic caulerpa detection in Fantail Bay, Coromandel Peninsula

May 23rd 2024 Small patches of exotic caulerpa have been discovered in Fantail Bay on the north-western coast, near the top of the Coromandel Peninsula. It’s disappointing to find exotic caulerpa in another new Read more