The rejection of salmon farms from the Beagle Channel to Buenos Aires, with a banner displaying the message “No to Salmon Farms in the Argentine Sea” surprised passersby this week in front of the Norwegian Embassy in Buenos Aires.

You may have noticed that salmon dishes are becoming less common on local menus. There’s been increasing awareness of the ecological harm being done by Atlantic salmon farms in Tasmania, as more information comes to light about how these industrial farms are polluting waterways in Tasmania and putting vulnerable marine species at risk.

Most farmed seafood comes from fin fish, but a new study urges shifting production toward bivalves and seaweed.