Complexities of climate change and aquaculture demonstrated with Norwegian salmon production
What is it about?
The overall aim of this study was to gain insight into the real-world complexities of aquaculture and climate change, and the level of detail required for assessment, by compiling information for a specific species and area. This study collated information from scientific literature and industry news to identify climate stressors, impacts and adaptation responses that could affect different aspects of salmon aquaculture production in Norway. Across all salmon production stages and the wider supply chain, seven climate stressors, 45 impacts and 101 adaptation responses were identified. Almost all impacts were linked to multiple climate stressors, and many adaptation responses can be used for a range of impacts. The study also highlights the need for more climate change research that reflects the challenges that the aquaculture sector faces, where multiple stressors and the range of impacts across production stages and the wider supply chain are included.
Why is it important?
Aquaculture is an important food production sector. The effects of climate change on aquaculture will vary depending on location, species, type of farm, and stage of production. There will also be impacts to the wider supply chain, and consequences in one stage may impact another. This study shows that there is a need to move towards more targeted and detailed assessments that are more relevant for industry and other stakeholders. If the sector is to prepare effectively for present and future challenges, then complexities and knowledge gaps must be acknowledged rather than ignored.