7th NordicRAS Workshop
The 7th Workshop on Recirculating Aquaculture Systems (RAS) was held at Aalborg Congress and Culture Centre (AKKC) in Aalborg, Denmark, October 8-9, 2025 with 240 participants from 25 countries.
The workshop was organized by the Nordic Network on Recirculating Aquaculture Systems (NordicRAS) and the Technical University of Denmark (DTU Aqua). It was held concurrently with the DanAqua & DanFish exhibitions at AKKC, providing a unique opportunity to engage with the newest advancements in RAS and fisheries technology.
In continuation of the workshop, a guided technical tour was organized on October 10, 2025, visiting Skagen Salmon, BioMar, and Maripure as well as DTU Aqua at the North Sea Science Park, Hirtshals.
Workshop sessions
- RAS operation
- Salmon RAS
- Water quality
- Non-Salmon RAS
- Microbial water quality
- Diseases & Biosecurity
- Water treatment and valorization
- Off-flavors
- Welfare
- Innovations in RAS
Invited speakers
- Pål Mugaas Jensen, Oceanspace Media, Norway:
Landbased aquaculture – What's going on? - Zhitao Huang, NIVA, Norway:
Current status and future prospects of RAS in China - Brendon Davis, BioMar, Scotland:
Scotland’s RAS evolution: Lessons learned and the road ahead - Timo Roche, Grieg Seafood, Norway:
Grieg's Global RAS activities - Paula Rojas-Tirado, Gaia Salmon, Norway:
Gaia Salmon – A land-based post-smolt facility located 40 miles out to sea - Per Sonnesen, Skagen Salmon, Denmark:
The Skagen Salmon Model for circular aquaculture, performance and lessons learned - Vegard Flo, Cargill Aqua Nutrition, Norway:
Chilled to thrive: Temperature manipulation in RAS and its impact on salmonid performance post-transfer - Mario R. Palma G., FosterAqua LLC, USA:
RAS operation – Lessons learned and future developments - Mikkel Thomsen, Nordic Aquafarms Technology ApS, Denmark:
Kingfish in RAS – Lessons learned - Johan Ljungquist, Gårdfisk, Sweden:
Catfish – A new animal in Swedish barns - Steven Summerfelt, Superior Fresh LLC, USA:
Growing healthy food in a regenerative farming model at Superior Fresh - Gro Bjerga, NORCE Research, Norway:
From waste to worth: Unlocking the potential of fish sludge - Damien Balkin, Maripure, Denmark:
From RAS effluent to livestock methane reduction – closing nutrient loops with red seaweed - Jaap van Rijn, the Hebrew University of Jerusalem, Israel:
Removal of geosmin and 2-methylisoborneol from aquaculture water by hydrophobic carriers - Andrew Preston, Benchmark Genetics, Norway:
Innovations in salmon breeding: Shaping the future of land-based farming - Rustan Lindqvist, LAXEY, Iceland:
LAXEY and farming salmon on land in Iceland: Challenges, lessons learned and the road ahead
