Aqulva: Optimising seaweed cultivation

The main research question is: How can we improve land-based aquaculture of Ulva? The project also researches a number of subquestions around the different types of Ulva, which types are most suitable for land-based cultivation, which types are best for feed, nutrition and care products, and which pond design works best for Ulva cultivation.

The aim of this project is to optimise the cultivation of Ulva seaweed species so that farmers can produce sustainable raw materials for feed, food and other products on their land. In this way, the project contributes to the biobased economy and circular objectives. In addition, the project aims to make seaweed cultivation easier and more attractive to boost the sector.

At the end of this project, there will be a better understanding of the optimal growing conditions of Ulva seaweed. The researchers will look at the best light conditions, temperature, and basin design. In addition, conclusions will be drawn on which species of Ulva is most suitable for aquaculture.

Aquaculture with seaweed offers a sustainable alternative, not only because it yields sustainable raw materials, but also because it gives farmers a sustainable alternative to intensive agriculture and animal rearing. Aquaculture requires little space and can be deployed in many places. It also has many applications: for instance, farmers can feed their livestock with their own, local, sustainable animal feed.

The findings from the project offer many opportunities for SMEs and for the Dutch agricultural market. The raw materials from Ulva seaweed can be used in new products, but also offer an alternative to harmful or unsustainable ingredients in existing products such as skin care and cosmetics. Prototypes of these products will be made in this project. In addition, it offers (livestock) farmers opportunities. For instance, they can grow their own livestock feed locally, and become less dependent on soya imports.