These deepwater fish farms could help natural stocks recover

“Our relationship with the oceans has not been a happy one,” says Marine biologist Neil Sims.

“But there is a need for optimism. Let’s start to think of solutions.”
One such solution that Sims and his partners have been pioneering is a unique take on a rapidly growing food sector: aquaculture.

 
What is aquaculture?

The farming of fish, seafood and aquatic plants, aquaculture already accounts for about half the fish we eat globally.

But such farms are usually located in coastal waters, and the faecal waste produced by the fish, and chemicals used in the farming process, can impact the environment.
So start-ups like Sims’ Hawaii-based Kampachi Farms are basing themselves offshore. Kampachi breeds sushi-grade fish in pens 70 metres deep, 6 km from the coast.

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