A row has erupted between Marine Scotland and the Scottish Government over controversial devices called seal scarers which have been used by fish farms.
Information on thousands of environmental checks and pollution breaches over 15 months has been permanently lost because of a cyber attack.
The company that supplies Scottish farmed salmon to the retail giant, Marks and Spencer, has been officially reprimanded for misreporting toxic pesticide use.
A leading Scottish salmon producer hired a private investigator to snoop on a key critic of the fish farming industry, internal industry documents reveal.
Over one in ten of Scotland’s fish farms have been rated as “unsatisfactory" by the Scottish Government’s environmental watchdog.
Scottish Government research into pesticides used to control the lice that infest farmed salmon deliberately excluded impacts on the “wider marine environment”.
Six fish farming companies in Scotland given government handouts of over £10 million have made profits of £926 million since 2010.
The amount of salmon killed by diseases and other problems at fish farms has reached record levels, with death rates quadrupling over the last 18 years.
Government investigations of alleged animal cruelty after lice-infested salmon were filmed at a fish farm on the island of Lewis have been branded a “whitewash”.