Fish farming is big business – the industry now produces about 100 million tonnes a year – and with salmon prices soaring, producers are turning to lasers, automation and artificial intelligence to boost production and cut costs.
How do you know if farmed salmon have had enough to eat?
Well, according to Lingalaks fish farms in Norway, which produce nearly three million salmon each year, the fish make less noise once the feeding frenzy is over.
The firm knows this thanks to a new hydro-acoustic system it has installed at one of its…