Rainbow Trout Operational Welfare Indicator (OWI) Protocol: Ongrowing, Seawater
A standardized protocol based on scientific literature for assessing the welfare of ongrowing rainbow trout in seawater using Operational Welfare Indicators (OWIs).
Contents
Contributions and acknowledgments
The Centre for Aquaculture Progress would like to extend its sincere thanks to all those who contributed their time, expertise, and feedback to the development of this protocol.
In particular, we would like to thank Marco Cerqueira (CCMAR, University of Algarve) for his close collaboration throughout the development of this document. We would also like to thank Jonatan Nilsson and Angelico Madaro (Institute of Marine Research) for their detailed review and extensive contributions to this protocol.
We would also like to thank the following individuals for their feedback on this protocol: Sean Black (RSPCA), Jeroen Brijs (University of Innsbruck), Meredith Burke (University of Stirling), Mauro Chivite Alcalde (University of Vigo), David Dietz (Best Aquaculture Practices / Global Seafood Alliance), Steffan Edward (Aquatic Life Institute), Tessa Gonzalez (Aquatic Life Institute), Marianne Green (Aquaculture Stewardship Council), Albin Gräns (Swedish University of Agricultural Sciences), Stefan Johnigk (Aquaculture Welfare Standards Initiative), Haven King-Nobles (Fish Welfare Initiative), Brianne Lyall (University of Tasmania), Kine Rivers Marhaug (Eyvi), Julia Mühlherr (Naturland), Mario Passoni (Friend of the Sea), Murilo Quintiliano (FAI Farms), Ana Roque (IRTA), Jonathan Schleyken (Naturland), Emanuele Vervelacis, Douglas Waley, and Valeska Weymann (Agraya GmbH).
Suggested citation
Centre for Aquaculture Progress. (2026). Rainbow Trout Operational Welfare Indicator (OWI) Protocol: Ongrowing, Seawater (Version 1.0). https://doi.org/10.5281/zenodo.21869741
Also available at: https://hub.centreforaquacultureprogress.org/owi/trr/ong-sw/1.0/