The £2 billion salmon farming industry marketed around the world as Scottish is virtually all owned by investors in Norway, Switzerland, Cyprus, Canada and other countries.
Government officials raised concerns over the import to Scotland of salmon eggs from a Norwegian company called AquaGen after the outbreak of a deadly virus.
The use of cleaner fish on Scottish salmon farms as a treatment for sea lice should be suspended due to serious welfare issues, according to a report by animal rights campaigners.
Scotland's fish farming industry must bow to tougher environmental regulation if wants to expand, a committee of MSPs has concluded.
Pollution from fish farm pesticides is more widespread than thought and is harming marine wildlife, according to the Scottish Government’s green watchdog.
The fish farm caught on film with lice-infested salmon has been reprimanded by the Scottish Government - but the move has been damned as “truly pathetic” by critics.
One of Scotland’s most senior fish farm watchdogs has quit to join the fish farming industry, prompting concerns about the effectiveness of environmental regulation.
The Scottish Society for the Prevention of Cruelty to Animals is facing criticism after it decided not to punish a fish farming company caught on film with lice-infested salmon.
Two fish farming companies tried to block publication of graphic images of their damaged salmon, according to emails released by the Scottish Government.