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Asparagopsis Hatchery Manual

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ASSA R&D Update - October 2025

ASSA's Hatchery and Cultivation Manual for the red seaweed Asparagopsis is now available.

The Manual provides a comprehensive overview of best-practice procedures covering seasonality, broodstock collection and hatchery techniques ranging from contamination management to reproduction. This manual covers both the colder-water species A. armata and warmer-water species A. taxiformis.

The cultivation of the red seaweed Asparagopsis is a developing industry in Australia, driven by growing global demand for methane-reducing livestock feed additives.

This manual was produced by ASSA's National Hatchery Network, a collaboration between ASSA, James Cook University and the South Australian Research and Development Institute. The project was funded by FRDC through funding from the Australian Government’s Developing Australia’s Seaweed Farming Grant Program.

The purpose of the report is to provide an update on the progress of the Australian Seaweed industry since AgriFutures and The Australian Seaweed Institute’s Australian Seaweed Industry Blueprint was published in 2020. This report extends the economic impact assessment by analysis of scenarios extending from current Australian seaweed sector development activities and investments, confirming the opportunities in Australia’s role in the global demand for seaweed-derived products and more.

This ASSA and partner Blueprint outlined the extensive economic, social, and environmental benefits that could be realised from the development of an Australian seaweed industry.

By synthesising the knowledge from key industry players, academics, and regulators, this study identified the primary opportunities, barriers and research needed to grow the industry.

This ASSA and partner Implementation Plan extended the work done developing the Blueprint through further engagement with industry participants to define how wider industry development priorities will be implemented.

It aims to leverage the biggest opportunities for the industry and address the key barriers to growth at the time:

• Opportunities: Large-scale marine and land aquaculture; cattle feed for methane reduction; and highvalue bioproducts.

Barriers: Regulation and policy; knowledge and workforce; and R&D funding and coordination.

This ASSA and partner Review outlined how seaweed aquaculture is managed in across the states, with a view to identifying both common governance approaches for seaweed marine aquaculture and potential opportunities for improvement.

It did this terms of the strategic policy context and specific legislation, particularly what the leasing and licensing process was and what institutional arrangements existed.

This information was used to identify optimal practices in Australia and to suggest where governance could evolve to better support industry development.