Question to the Department for Environment, Food and Rural Affairs:

To ask the Secretary of State for Environment, Food and Rural Affairs, what recent assessment he has made of the (a) prevalence of fish farm escapes and (b) potential impact of fish farm escapes on wild fish populations.

In line with our membership of the North Atlantic Salmon Conservation (NASCO), the UK is committed to minimising adverse interactions between farmed and wild salmon. From 2027 each of the UK’s Governments will report annually to NASCO on the number of escapes from salmon farms and their impact on wild salmon populations. This reporting will include information about the monitoring of genetic introgression from farmed salmon. NASCO also provides best practice guidance on salmon aquaculture practices. This guidance is due to be reviewed during 2026/2027, and the UK government intends to put forward a representative to contribute to this review work.

Aquaculture policy and regulation is a devolved matter and there is no marine salmon farming in England. The Fish Health Inspectorate (FHI) authorises all aquaculture production businesses in England, under the Aquatic Animal Health (England & Wales) Regulations 2009. This includes setting conditions to ensure fish do not escape. The FHI assesses each farm for compliance annually and investigates farmed fish escapes.