Farming tuna on land heralded as a win for sustainability – but there are serious concerns around animal welfare

Atlantic bluefin tuna used to be caught only relatively rarely, mainly by sports fishermen in North America. But this all changed in the 1950s when consumers of sushi, particularly in Japan, developed more of a taste for the species.

Historically, Atlantic bluefins have either been caught directly from the ocean or caught while young and fattened in large offshore cages called “ranches”. Both…

© La Conversation - mardi 31 octobre 2023