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Graphics Aquaculturehttps://phosphorusplatform.eu/AquacultureFisheries

10-12 June 2025, Bergen (Norway) & online. ESPP workshop, with partners in Norway and with UNEP uPcycle, on nutrient management in aquaculture feed, seafood processing and fish sludge valorisation, Norway & online, covering nutrient flows, environmental best practice, phosphorus recycling, regulatory challenges. The workshop will contribute to the United Nations (UNEP) project uPcycle, leading to a UNEP white paper on  phosphorus sustainability in aquaculture. Possible online connected meetings in Brussels, Chile. Site visits: state-of-the-art aquaculture, fish sludge processing installations.

If you would potentially contribute, please email indications of your organisation’s areas of interest, competence, possible content of presentation, to

Event location

Bergen (Norway) @ NORCE (Nygårdsgaten 112/114, 5008 Bergen) + online.

Outline programme

10 June 2025

13.30 – 14.00 Registration and welcome coffee
14.00 – 14.15                                  

Opening and welcome by organisers (ESPP, NORCE, NCE Aquaculture, Ragn-Sells)

  • Robert van Spinglen, ESPP
  • Dorinde Kleinegris, NORCE
  • Ann Cecilie Hilling, NCE Aquaculture
  • Ole Arthur Vaage, Ragn-Sells
  • Will Brownlie, UK CEH
  • Tbd, NIBIO
14.15 – 15.45 Session INutrient flows in aquaculture and fisheries, predicted growth, potentials for circularity and improved nutrient use efficiency; Nutrient sustainability as part of aquaculture sector sustainability vision and strategies (industry federations, leading salmon companies); Nutrient flows and recycling in seafood processing waste
  • Brian Thomsen, Aquaculture Advisory Council (AAC): Valorization of fish sludge/manure
  • Andfjords Salmon: Andfjords Salmon's concept and vision for sustainable aquaculture
  • Constanza Silva, Subsecretaría de Pesca (Chile): Challenges and Solutions for Nutrient Management in the Chilean Aquaculture Sector
15.45 – 16.15 Coffee break
16.15 – 18.00

Parallel session IIA. LCA, circularity business models

  • NORCE (Norway): sustainability assessment of aquaculture sludge for biogas and microalgae production
  • Kari-Anne Lyng, NORSUS (Norway) and Circulizer project: results of LCA comparison of aquaculture waste management options 

Parallel session IIB. Efficiency of use of nutrients in aquaculture feed – aquaculture feed and improved nutrient use efficiency, finding new sustainable feed protein sources as aquaculture grows and wild fish production (so processing by-products) recede, moving from fish-protein based to plant based feeds, possible use of facilitating products (phytase …)

  • Torgeir Lassen, Terramarine (Norway): Nutrient recycling in aquaculture: A global perspective
  • Gregosits Balazs, Vitafort (Hungary) 
  • Lucia Drábiková, Institute of Marine Research (Norway): Dietary phosphorus requirements in sea-cage farmed Atlantic salmon with emphasis on bone health and reduced waste
  • Turid Synnøve Aas, NOFIMA (Norway): relationship between feed, filter efficiency and ratio feed:faeces in the sludge, and the composition of the collected sludge, with a focus on P and Zn
  • Simona Paolacci, AquaBioTech Group (Malta): Sustainable ingredients and reduction of the Feed Conversion Rate to reduce aquaculture environmental impact: case studies with Mediterranean species
19.30 Networking dinner

11 June 2025

8.30 – 9.00 Registration and welcome coffee
9.00 - 10.00 Panel session with EU policymakers organised by Bellona
10.00 - 10.30  Coffee Break
10.30 - 12.15

Parallel session IIIA. Aquaculture sludge recycling via algae, growing algae as fish feed

  • NORCE (Norway): The INNOAQUA project: the use of microalgae production on aquaculture sludge (reject water), and the use of microalgae in food and feed.
  • Marta Notari, STAM (Italy): Harnessing Microalgae for Circular Wastewater Treatment and Improved Agricultural Production: From Space Technology to Aquaculture Integration
  • Paulo Mira Fernandes, NIVA (Norway): Microalgae cultivation to reduce waste streams from aquaculture
  • Siri Caspersen, SLU (Sweden): use of nutrients from aquaculture as a nutrient source for plant cultivation
  • Daniel Pleissner, Institut für Lebensmittel und Umweltforschung e.V. (ILU, Germany): A decentralized algae-based bioprocess for the conversion of aquaculture residues with low climate impact (CLIMAQUA project) 

Parallel session IIIB. Recycling of aquaculture sludge – technical aspect: aquaculture sludge collection (onshore, offshore) and processing (biogas, cement kiln incineration, transformation to organic fertilisers, extraction of mineral nutrients …): examples of technologies, presented by technology suppliers and/or by user aquaculture operators

  • Paulo Mira Fernandes, NIVA (Norway): Phosphorus flows and new technologies to re-harvest sludge from aquaculture sludge
  • Callum Howard, MRAG (UK): Sludge collection in RAS and the implications for down stream applications
  • Elin Larsson, EasyMining (Sweden): Nutrient Recovery from Aquaculture Sludge using EasyMining Technology
  • Maria Magdalena Estevez Rego, Aquateam COWI (Norway): Effects of fish sludge as a co-digestion substrate on the methane yield, biorest’s nutrients and heavy metals content
  • Linn Solli, NIBIO (Norway): Marine residues (fish sludge and silage) as substrate for biogas production
  • Astrid Nesse, NIBIO (Norway): Fish sludge as fertiliser – potential and barriers
12.15 – 13.15 Light lunch
13.15   – 14.15                            

Session IV. Recycling of aquaculture sludge – regulatory challenges (Animal By-Products Regulation, EU Fertilising Products Regulation, Animal Feed regulations …) and policy opportunities; development of policy proposals – Europe, global

  • Victoria Røyseth and Torhild Tveito Compaore, Norwegian Food Safety Authority (Norway): Regulatory Challenges of recycling of aquaculture sludge
  • Veronika Sele, Institute of Marine Research (Norway): upcycling of aquaculture sludge to feed for invertebrates: nutrients and contaminants, and regulatory challenges
14.15 – 14.45 White paper discussion, led by Will Brownlie, UK CEH
14.45 – 15.00 Closing
15.30 – 17.00 Visit to Marineholmen RASlab where there is RAS facilities (research) with salmon connected with microalgae cultivation.

12 June 2025

9.00 Optional site visit to National Algaepilot Mongstad

Registration

Available on Eventbrite (registration for participating in Bergen closing on 6th June).

Site visits description

  • Marineholmen RASlab

Marineholmen RASLab is a research and innovation company with a focus on Recirculating Aquaculture System (RAS) technology. With a central location in Bergen, and a state-of-the-art research facility, RASLab offers the opportunity for the investigation of sustainable, land-based fish farming. In the EU project INNOAQUA, RASLab is hosting the first stage of Demo #1: the integration of salmon production in RAS with microalgae production in a photobioreactor (PBR) at pilot scale, in a land-based IMTA (Integrated MultiTrophic Aquaculture) set-up. During the site visit, you will be given a tour of the whole facility and explain more about the research and show you 12 self-contained fresh or saltwater RAS systems. One of these is connected to a microalgae PBR from the partner NORCE, where the microalgae are continuously fertilized with the nutrient-rich effluent water from the RAS, producing valuable microalgal biomass while cleaning the water. 
Note: this visit can only host 20 persons, due to limitations in the space and lay-out of the facilities! So be quick to sign up! The location is a 5 min walk from the venue where the workshop is held.
For more information, please contact Dorinde Kleinegris: 

Marineholmen.png

  • National Algaepilot Mongstad

 The National Algaepilot Mongstad is a state-of-the-art research facility dedicated to the development and demonstration of sustainable production processes of microalgae (TRL 5-6), as well as for the production of large quantities (100’s of kilos) of microalgal biomass for further testing and development of new products (food, feed, chemicals). For example, in the INNOAQUA project,  around 200 kg of microalgal paste of three different microalgae strains were produced, that are now tested in a biorefinery approach to extract various ingredients (e.g., omega-3 rich oils, proteins, pigments) that are used for food formulation. The facility consists of a greenhouse with various types of photobioreactors, and a basic laboratory and office as well as the related infrastructure (water treatment, harvesting equipment) in the annex, and is owned by the University of Bergen, and operated in close collaboration with NORCE. During the visit, you will have the opportunity to tour the facilities, and gain insights into our research initiatives and technological advancements.
The facility is located at industry park Mongstad, approximately one hour north-west from Bergen. We will travel to the facility by bus, leaving at 09h00 from Marineholmen (Thormøhlensgate 55, 5006) in Bergen, back around 12h30. Fare for the visit is 20€.
For more information, please contact Dorinde Kleinegris:

Mongstad.png

  • Additional, pending confirmation. Visit to:
    • pilot fish sludge collection installation
    • anaerobic digestion of fish sludge 

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