Using stable isotopes to examine the potential for seaweed co-culture with salmon aquaculture in Tasmania (Honours project)

A major hurdle facing Tasmania’s growing seaweed aquaculture industry is low nutrients in our waters which can limit the growth of cultivated seaweeds. Salmon aquaculture faces the opposite challenge where excess nutrients produced by farming can have negative environmental effects. Integrated Multi-Trophic Aquaculture (IMTA) is the idea that nutrients released into the environment by species like salmon can be used by species that need to uptake nutrients from the water, such as seaweeds, by growing them nearby to each other (known as co-culturing). The result can be positive for the environment and production.

This honours research project aims to begin investigating the feasibility of co-culturing salmon and seaweed in Tasmania. The first step is knowing whether cold-water seaweeds can effectively use nutrients released into the environment by salmon farming. Using a stable isotope analysis method, the project will investigate how a range of seaweed species with different growth and reproductive strategies uptake nutrients in both laboratory and real-world situations.

Honours student: Riana Bell

Project Status
2023 Honours project
Camille White
Visit Project
Institute for Marine and Antarctic Studies
15-21 Nubeena Crescent
Taroona, Tasmania 7053 Australia
+61 6226 8277 
Acknowledgment of Country
We acknowledge the palawa/pakana and Gadigal/Wangal people, the traditional custodians of the land and sea upon which we live and work, and their enduring cultures and knowledge of our oceans and coasts.

We recognise that decisions and practices affecting the future of Indigenous education and research are vital to the self-determination, wellbeing and livelihood of Aboriginal and Torres Strait Islander people, and to shaping the Australian society in which we live.
Copyright 2024 Institute for Marine and Antartic Studies.
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