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How many hydroelectric dams or associated infrastructure assets are considered at risk from Corbicula fluminea infestation, and what are the estimated short- and long-term economic costs to electricity generation, maintenance, or infrastructure integrity?

Answered Question 2952 (2026)
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Asked by

Jo Luxton

List MP · Labour Party

Question

  • How many hydroelectric dams or associated infrastructure assets are considered at risk from Corbicula fluminea infestation, and what are the estimated short- and long-term economic costs to electricity generation, maintenance, or infrastructure integrity?

Answered by

Hon Andrew Hoggard

List MP · ACT Party · Minister for Biosecurity

Answer

I am advised that Earth Sciences New Zealand are undertaking a Ministry of Business, Innovation and Employment-funded programme of research to determine Corbicula fluminea’s ecological, social, cultural, and economic impacts in New Zealand; predict its spread for early detection and targeted intervention; and develop practical control methods for established populations.