Regenerative Seaweed Farming System
Sustainable agriculture
Revolutionizing ocean farming with a regenerative seaweed system that enhances biodiversity, captures nutrients, and sequesters carbon.
Contact

GreenWave Aotearoa
Company Established Year
Who is this solution for
Info
Available
Project Status
Looking to expand internationally
Doing business in
Awards and certifications
Pilot Funding
Received $5M for regenerative seaweed farming from NZ government and partners.
First Native Seaweed Planting
Successfully outplanted 228 m of Ecklonia radiata at scale.
Red Seaweed Trial
Launched first commercial planting of native Gigartina in NZ waters.
Product description
GreenWave Aotearoa's Regenerative Seaweed Farming System is a groundbreaking solution that leverages native Ecklonia radiata seaweed grown on vertical lines alongside shellfish in multi-trophic setups. This innovative approach creates a zero-input, symbiotic ocean farm that not only produces nutritious food but also contributes to environmental sustainability and climate mitigation.
The process begins with seedlings raised in commercial hatcheries, ensuring optimal growth conditions and genetic diversity. These seedlings are then deployed on consented lines off the Coromandel and Hauraki Gulf, where they mature into seaweed-shellfish farms. By combining different species in a mutually beneficial relationship, the system boosts biodiversity, captures excess nutrients, and sequesters carbon from the water.
GreenWave Aotearoa has developed detailed protocols for every stage of the farming process, including hatchery operations, seeding, outplanting, harvesting, and supply chain logistics. These protocols have been refined through extensive multi-stage trials conducted from 2021 to 2024, ensuring the efficiency and sustainability of the system.
This scalable solution not only provides economic opportunities for coastal farmers but also promotes community-led stewardship of marine resources. By lowering nitrogen and CO₂ levels in the water, the regenerative seaweed farming system contributes to climate mitigation and environmental restoration. Supported by iwi engagement, research institutions, government funding, and industry partners, this innovative approach serves as a blueprint for sustainable ocean farming practices worldwide.
Key characteristics and environmental benefits
- Enhances biodiversity and ecosystem health through multi-trophic farming
- Captures excess nutrients and sequesters carbon from the water
- Provides economic opportunities for coastal farmers and promotes community-led stewardship
- Reduces nitrogen and CO₂ levels in the water, contributing to climate mitigation
- Supported by iwi engagement, research institutions, government funding, and industry partnerships
About the Company
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