HomeNewsEnvironmental & Sustainability NewsRed Seaweed (Asparagopsis taxiformis)

Red Seaweed (Asparagopsis taxiformis)

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Why is it a problem?

Very similar to a New Zealand native, Asparagopsis armata which has harpoon-like structures on side branches. It travels on underwater equipment and via natural means, and can smother and displace native species.

How to identify this species

Look for the harpoon structures to identify this species:

The New Zealand native, Asparagopsis armata, has harpoon-like structures. The invasive species, Asparagopsis taxiformis, does not have these structures:

Check to see whether it is red seaweed
Check to see whether it is red seaweed

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Taxiformis in shallow pool of water // Photo credit: Clean below? Good to go.
Taxiformis in shallow pool of water // Photo credit: Clean below? Good to go.

From the team at Clean Below? Good to Go – visit marinepests.nz to get everything you need to know about marine pests ID, boats, rules and more.

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Olivia Christie doing baited underwater survey in Rangitoto and Motutapu HPA. DOC. // Photo credit: Credit Shelley Ogle.
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