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Home Results Topics from A-Z RAS technology

Topic: RAS technology

With RAS technology, land-based fish farms can optimise water quality and limit water use. Nofima studies the technology and how it affects fish welfare.

Results from research on RAS technology

25. Nov 2025

Potential for land based red algae

16. Oct 2025

High temperature rearing led to strong salmon growth at sea

29. Aug 2024

New findings on salmon’s response to H2S in land-based fish farms

25. Aug 2023

Diagnosing nephrocalcinosis in the field

15. Jun 2023

The smolt are larger now than previously, but are they stronger?

06. Oct 2022

Sensitive nose when exposed to toxic gas

Projects on RAS technology

Thumbnail for Solutions for water intake, water treatment and biosecurity in FLO

FLO-biosec

Solutions for water intake, water treatment and biosecurity in FLO

2026 - 2028

Thumbnail for Improved light regimes and feed for large smolt

LetThereBeLight

Improved light regimes and feed for large smolt

2026 - 2026

Thumbnail for Feasibility of technological solutions for non-biological ammonia removal in RAS

NonBio

Feasibility of technological solutions for non-biological ammonia removal in RAS

2025 - 2027

Thumbnail for Life cycle study of Atlantic salmon with temperature and salinity as critical test variables

Temp-Intens

Life cycle study of Atlantic salmon with temperature and salinity as critical test variables

2022 - 2025

Thumbnail for Biologically driven automation of salmon production conditions in RAS

RAS 4.0

Biologically driven automation of salmon production conditions in RAS

2021 - 2026

Thumbnail for Pathogen dynamics and disinfection in Atlantic salmon recirculating aquaculture system

PathoRAS

Pathogen dynamics and disinfection in Atlantic salmon recirculating aquaculture system

2023 - 2026

Events

14. Oct. 2026 - 15. Oct. 2026

Smolt production in the future

Conference

Worth knowing

42 highlights from research on closed aquaculture systems

A brief overview of fish farming systems

Facilities

Tromsø Aquaculture Research Station

Tromsø Aquaculture Research Station, of which we are part-owners, is a modern research facility for experimental studies of marine fish, freshwater fish, molluscs, crustaceans and other aquatic organisms.

Nofima Centre for Recirculation in Aquaculture

Recirculation of water provides extremely good control of the water environment, sensible utilisation of water sources and better protection against infection.

Research Station for Aquaculture – Sunndalsøra

At this land-based research station at Sunndalsøra with fresh water, seawater and recirculated water, we can carry out biological and technological experiments along the complete aquaculture value chain.

Publications on RAS technology

Interplay between disinfection and the enigmatic diplomonad parasite Spironucleus salmonicida in Atlantic salmon

Scientific Reports, 2026
Academic article

Intestinal morphology and host‑ and system‑associated microbiome dynamics during short‑term fasting and refeeding of Atlantic salmon in recirculating aquaculture systems

Scientific Reports, 2026
Academic article

Praksishåndbok for røyeoppdrett med nye oppdrettsteknologier

2026
Nofima’s reports

Acoustic characteristics of Atlantic salmon feeding behaviour in RAS: Possibilities and pitfalls of using passive acoustics for monitoring in tanks

2026
Doctoral dissertation

Pre trial of growth performance and nutrient uptake of dulse (Palmaria palmata) cultivated in commercial Atlantic salmon Recirculating Aquaculture System (RAS)

2025
Nofima’s reports

The impact of oxygenation and feeding on soundscape patterns in RAS tanks holding Atlantic salmon (Salmo salar)

Aquaculture, 2025
Academic article

Associated Research Areas

Aquaculture systems

Home Results Topics from A-Z RAS technology

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  • About us
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    • About Nofima
    • Contact
    • Organisation
    • Nofima as a partner in EU projects
    • Participation in innovation clusters
    • Company background