On 1 July 2025, NIWA merged with GNS Science to become Earth Sciences New Zealand.

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Suction dredging – like vacuum cleaning the seafloor but bigger – is one of the methods divers have used to help control incursions of the invasive Caulerpa.
Leigh Tait, NIWA

Suction dredging – like vacuum cleaning the seafloor but bigger – is one of the methods divers have used to help control incursions of the invasive Caulerpa.