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Invasive caulerpa described as biggest threat to NZ's marine life

March 10, 2024

It grows at speed over the seabed and smothers all sea life beneath. (Source: Sunday)

It's being described as the biggest-ever threat to New Zealand's marine life.

Invasive caulerpa, also known as killer algae, grows at speed over the seabed and smothers all sea life beneath.

This resulting carpet of caulerpa means fish, shellfish and kelp have little chance of survival. And it could put big industries such as fishing and tourism at risk.

Government officials say it can't be eradicated from our waters, but how much damage will it do?

Is there any way caulerpa can be stopped?

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Sunday's Conor Whitten takes a deep dive into the issue in the report above.

New Zealand Environment Conservation

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