#ADDwatch Campaign

Clyde Porpoise is conducting evidence gathering surveys to determine the current ‘unlicensed’ use of Acoustic Deterrent Devices on fish farms in the Clyde and Sound of Jura.

  • The fish farming industry body, The Scottish Salmon Producers Organisation, with new chief executive and former MSP Tavish Scott, released a statement on the 1st March 2021 that the Scottish fish farming sector would no longer be using Acoustic Deterrent Devices (ADDs). 
  • A new study has been published  on 8th June 2021 which confirms that Acoustic Deterrent Devices are likely to be damaging the hearing of porpoises in large areas of Scotland’s coastal waters. 
  • The aquaculture industry online magazine The Fish Site released an article*, on 9th June 2021, which included a tweet from the Scottish Salmon Producers Organisation reiterating that fish farming industry no longer uses ADDs on Scottish fish farms. (*article now redacted)
  • Under European Protected Species legislation and Marine Scotland advice it is a legal requirement and necessity for fish farms operators to acquire a European Protected Species license to operate Acoustic Deterrent Devices at Scottish fin fish farms. 
  • No fish farms are currently licensed by Marine Scotland to operate Acoustic Deterrent Devices.   

ALL the fish farms we surveyed were using Acoustic Deterrent Devices!!!

Fish Farm Site  ADDs in operation 
Ardyne  YES
Strone Point  YES
Sgian Dubh YES
Glenan Bay YES
Ardgaddon YES
Strondoir Bay YES
Meall Mhor YES
Tarbert South YES
Driumyeon Bay YES
East Tarbert Bay  YES


“This damaging form of noise pollution is harming some of our most precious wildlife. The salmon farming industry has denied and obfuscated about ADDs for too long. The Scottish Government must act decisively to categorically end the use of ADDs now, and we call on them to do so.”