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Exotic caulerpa seaweeds in New Zealand

Find out about this exotic (from overseas) pest seaweed, where it’s been found, what it looks like, what’s being done about it, and how you can help.

In this section

I tēnei wāhanga

Exotic caulerpa in New Zealand – where it is and the work underway

The risk to New Zealand, where it's been found, and what we're doing to combat it

What exotic caulerpa looks like

Pictures, video, and a guide to help you identify it

The legal rules for boating and fishing

Check the Controlled Area Notices (CANs) and the rules that apply 

Help stop the spread of exotic caulerpa

Practical ways you can help stop the spread

Developing new tools to combat exotic caulerpa

Research and projects to develop new surveillance and removal technologies

Scientific research and technical advice

Science reports on exotic caulerpa, its biology, extent, impacts and management.

Exotic caulerpa newsletters

How to subscribe and copies of previous newsletters