Costs and benefits of innovative Eco-sustainable aquaculture practices

Authors: Cornelia Kreiß & Simone Brüning

The latest GAIN project developments on the impacts of eco-intensification innovations, found that novel feeds with commercially available emerging ingredients, could lead to farm profitability losses in most cases. This was especially true for diets combining different emerging ingredients, and in diets with smaller amounts of processed animal proteins (PAP) in addition to these new ingredients.

The most pronounced losses were found for seabream production. This was partly due to the decreased feed conversion rates when using novel feeds. The already high feed costs per kg of fish produced, when compared with trout and salmon, was also a factor in profitability losses. PAP feeds, however, were more promising from an economic point of view, especially for Atlantic salmon production.

What would you pay for high quality produced fish originating from European waters GAIN aims to work on eco-intensified production for seabream and salmon amongst others?

These results illustrate the demand for more affordable alternative ingredients, such as the upcoming GAIN-developed by-products. Consumer willingness-to-pay for more sustainable grown fish might also play a significant role in order for producers to stay profitable or to reach break-even.

Salmon farm in Norway.

Room for improvement was also identified for the valorisation of fish and shellfish by-products, especially for species with lower production volume and market-share of processed products, such as carp. The costs and benefits of the next generation of novel GAIN feeds, focused in adding value to by-products and side streams will be addressed in the upcoming work within the project.

Surrounded by innovation

By: Meredith Burke and Catilin Stockwell

Over the past few decades, technological advances have completely revolutionized our society. It has influenced the way we live our lives, from the way we watch TV, to the way we conduct our scientific research. However, the aquaculture industry has fallen by the wayside. Big data, collected and distributed to our hands in the form of apps, have begun to dominate our world, so why is this not the case in one of the fastest growing industries in the world?

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Farming fish with the Atlantic Canada in the background

Atlantic Canada has recently emerged as a global leader in ocean technology, as well as playing host to one of the largest aquaculture companies in the world, Cooke Aquaculture. We have the unique opportunity of being surrounded by innovation. We are able to work side by side with the developers, as well as the consumers, to field test new technologies, and optimize their performance prior to commercialization.

However, aquaculture is still a relatively young industry, often operating in remote places, so introducing the use of technology has been difficult. Through research projects, we have been able to merge two key industry partners: ocean technology via InnovaSea, and salmon aquaculture, through Cooke, in order to improve management practices.

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Meredith’s research focuses primarily on using real-time sensors to study water quality parameters, like oxygen and temperature, to understand how they vary through a farm, and what may influence these variations. At the same time, Caitlin uses acoustic telemetry to track fish movement in order to understand fish behaviour and improve welfare management. These two projects together allow us to provide a more holistic view of fish farming to create a more sustainable industry.

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We hope that our work will help inform other aquaculture industries throughout the world, to become more innovative, improve farming practices, and ultimately create happier and healthier fish, with the ability to feed a growing population.