BIOFISK: beach cast and residual biomass for new fish feed

Guldborgsund Municipality supports development of new biomass-based within the project “BIOFISK”.

The organization

Guldborgsund Municipality is a rural municipality with 316 km of coastline, where tons of seaweed wash ashore each year. The municipality depends heavily on tourism and uses many resources to get the beaches ready for the summer season. Guldborgsund municipality has a bio-economy strategy for the valorization of surplus biomass. The municipality has a good infrastructure and a tradition of working closely with land and sea, and the aim is to further support and strengthen local business activity and create new jobs.

The idea

The aim of the project "BIOFISK" is to support development of new biomass-based products and create local jobs by exploring the whole value chain of innovative aquaculture and sustainable fish farming in a local perspective with the island of Falster as a showcase. The project will focus on the potential of beach cast as a cultivation media for insects for feed. This will be done by combining the results of latest research, cultivation techniques and technological development with problematic surplus local biomass, cluster potentials, business development and societal challenges in one best-practice perspective.

BIOFISK initiative hopes to find ways to produce valuable products from the beach cast and attract new companies or stimulate local companies to grow and create new jobs.  Apart from creating a business model for local production of sustainable fish feed the model is meant to transform problems with beach cast to business opportunities. If the project is successful, the model could be relevant and applicable to many other coastal places around Denmark and the Baltic Sea.

The strength of the idea is the circular economical approach ensuring that local waste resources are delivering added benefits (new products and jobs) to the local and regional community.

The BIOFISK project aims to:

  • Valorise a surplus from local biomass resources.
  • Connect the latest research in insect production with protein refining.
  • Make fisheries more sustainable.
  • Bring jobs and primary production back to depopulated areas.
This project comprises a small-scale pilot for the purpose of developing a business model. Guldborgsund municipality will work closely together with selected local companies in order to develop a business case.

Our primary ALLIANCE mentor the Danish Technological Institute conducts an analysis of beach cast biomass, which is very helpful for our undertaking of developing new biomass-based products.”-


  • Mette Jorgensen

    BIOFISK (Guldborgsund Municipality)

The allies

The municipality needs the support of the Alliance partners to discuss the development of processes and proof-of-concept for the production potential for up-scaled bioconversion of surplus biomass resources for use as valuable compounds including protein as feed. The case BIOFISK benefits from the expertise of the ALLIANCE partners in:

  • Analysis and documentation of the nutritional and high value compound content of e.g. beach cast biomass.
  • Understanding of EU regulations with regards to products from recycled biomass and food and feed health safety aspects (and how Denmark interprets these).
  • Networking, communication and support in dissemination of BIOFISK as a bio-economy showcase to promote the business model in the Baltic Sea Region.
  • Clarification of possible Intellectual Property Rights (IPR) issues.
  • Input to the business model in the form of modelling or other ways of strengthening the argument for using beach cast biomass as a resource.
The main mentors of BIOFISK are: Danish Technological Institute (DTI), SUBMARINER Network for Blue Growth EEIG and KTH Royal Institute of Technology (KTH).

Photo credit: Danish Technological Institute ©