Climate change, shrinking arable land, and deteriorating water resources are putting global food security at risk—and Europe is no exception. As the continent seeks resilience and self-sufficiency, innovative solutions that maximize resource efficiency and reduce dependency on external inputs are urgently needed. One such solution is the international project ProRMAS, which is developing a circular and sustainable food production system based on Recirculating Multitrophic Aquaponic Systems (RMAS).
Science, Innovation, and Collaboration
Funded by the Green ERA-Hub initiative, the ProRMAS project unites science, innovation, and international collaboration to redefine the future of sustainable aquaculture. At its halfway point, the consortium, led by the Alfred Wegener Institute (AWI, Germany) with key partners Klaipėda Science and Technology Park (KSTP, Lithuania) and the University of Padova (Italy), has already achieved significant progress toward building a resilient, resource-efficient food system.
Building the Circular System
By the middle of this year, the ProRMAS project partners had made significant progress in implementing various project activities:
Polychaete Rearing System: In collaboration with Greenhub GmbH, a prototype system was developed, initial biomass tests were conducted, and daily handling protocols were established for feeding, salinity, and temperature control.
Alternative Proteins for Shrimp Feed: KMTP adapted aquaculture systems for experimental trials using polychaete meal and Ulva algae as feed additives.
Biofertilizers from Shrimp Sludge: UNIPD analyzed the nutrient profile of shrimp sludge and began growing Salicornia, a salt-tolerant halophyte, using nutrient-rich water from shrimp culture.
Demonstration Farms: Pilot systems are being prepared in Italy and Lithuania to showcase the full RMAS model, integrating shrimp, polychaetes, algae, and halophytes. These will serve as educational and outreach platforms.
Changes between implemented activities
During the first project phase, the international team successfully launched research and development activities, fine-tuning the essential components of the RMAS: shrimp, polychaetes, algae, and halophytes. New prototypes for polychaete rearing and shrimp feed production have been established, while initial trials have already shown promising results. At the same time, a clear strategy to transform shrimp sludge into natural biofertilizers is being implemented, demonstrating how circular principles can create value from resources that would otherwise go to waste.
In Lithuania, KSTP has taken a leading role in setting up the infrastructure for experimental trials, adapting recirculating aquaculture systems, developing handling protocols, and preparing for the integration of algae and halophytes. These efforts have laid a strong foundation for the next phase of the project.
Meanwhile, partners are already preparing demonstration farms in Italy and Lithuania that will showcase the complete RMAS model and serve as educational and outreach platforms. These pilot systems will demonstrate how circular food production can thrive even in saline or resource-limited environments, helping Europe move closer to protein self-sufficiency and sustainable fertilizer use.
A Circular Vision for Europe
ProRMAS is more than a research initiative – it’s a vision for a greener, smarter, and more circular Europe. By transforming saline water into high-quality proteins and organic fertilizers, RMAS systems reduce waste, recover nutrients, and optimize water use. The project directly contributes to the goals of the European Green Deal, promoting protein self-sufficiency and fertilizer efficiency.
The consortium is proud of the first tangible results achieved so far and the strong collaborative spirit that drives the project forward. ProRMAS is more than a research project – it is a vision for a greener, smarter, and more circular Europe. By turning scientific innovation into practical solutions, the project contributes directly to the ambitions of the European Green Deal.
About ProRMAS:
ProRMAS is part of the Green ERA-Hub that is funded by the European Union’s Horizon Europe research and innovation programme under Grant Agreement No 1010568. This international research and development project is supported by the Ministry of Agriculture of the Republic of Lithuania, the Federal Ministry of Education and Research of the Federal Republic of Germany, and the Ministry of Agriculture, Food Sovereignty and Forestry of the Republic of Italy. Total budget of ProRMAS – €732 000.
More information about ProRMAS project and its activities: ProRMAS project webpage and ProRMAS LinkedIn.
About Green ERA-Hub (GEH):
The Green ERA-Hub is a Coordination and Support Action under Horizon Europe that brings together relevant ongoing and self-sustaining networks in the Agri-food and biotechnology sectors. It represents a significant part of Europe’s national ministries, funders, and research institutes, providing transnational co-programming of national research priorities and funding, organising joint scientific research, knowledge valorisation, and science-policy dialogue activities.
More information about Green ERA-Hub: www.greenerahub.eu
“The project ProRMAS was carried out under the Green ERA-Hub, a Coordination and Support Action (CSA), funded through the European Union’s Horizon Europe research and innovation (R&I) programme under Grant Agreement No. 101056828.”.
This international research and development project is supported by the Ministry of Agriculture of the Republic of Lithuania, the Federal Ministry of Education and Research of the Federal Republic of Germany, and the Ministry of Agriculture, Food Sovereignty and Forestry of the Republic of Italy.
Social media channels: GEH X: @GEH_era;
GEH LinkedIn: https://www.linkedin.com/in/green-era-hub/ and
GEH YouTube channel: https://www.youtube.com/@GreenERAHub.
