Your Mm2 survey can help make an important contribution to our understanding of where these marine pests are, and where they are not! Results from your survey can also provide valuable data to investigate the impact these marine pests have on our native species by looking at how they change in number over time.
Watch the ‘kina’ video and learn about how you can protect the ocean from marine pests
Many marine pests are established in New Zealand and are messing with our native marine plants and animals.
Biosecurity New Zealand wants all New Zealanders to help keep a watchful eye on marine pests in their local moana.
Marine Pest Guide
Download the marine pest ID guide to help with identification of any animals or plants you findSpecies Distribution Maps
Viewing the distribution map to find out where different pest species are currently lurking and how scientists are tackling the problemUseful Websites
Learning more about these pest on the Marine Biosecurity Porthole or the Marine Life Database websitesMarine Pests Activities
Bring marine pests into the classroom with these fun activities!
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Examples of Marine Pests in New Zealand
Mediterranean Fan Worm (Sabella spallanzanii)
Clubbed Tunicate (Styela clava)
Japanese Mantis Shrimp (Oratosquilla oratoria)
Pyura Sea Squirt (Pyura doppelgangera)
Australian Droplet Tunicate (Eudistoma elongatum)
Asian Paddle Crab (Charybdis japonica)
Lightbulb Ascidian (Clavelina lepadiformes)
Sea Squirt (Clavelina oblonga)
Wakame / Japanese Kelp (Undaria pinnatifida)
About Us
The Marine Metre Squared website, mm2.net.nz, is a citizen-science project and is owned and managed by the NZ Marine Studies Centre, University of Otago. Content is licensed under the Creative Commons Attribution-NonCommercial–ShareAlike license, unless otherwise stated.