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Shrimp Farming Is Coming to a City Near You

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Vertical Oceans says its adaptive algorithms and autonomous tanks offer a more sustainable way to raise prawns.

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(Bloomberg) —

Shrimp are one of the most popular seafood globally, but farmed production of the crustaceans can have a devastating impact on local habitats — and in some cases the climate. A Singapore-based startup now says it has a new planet friendly solution for growing the food without the sea. 

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When along coastlines, shrimp farms can generate a steady stream of chemicals, feces and antibiotics that are pumped back into the ocean. While that’s worrying enough, the industry has also been linked to global warming. Thirty percent of the destruction of mangroves — a powerful carbon sink — and coastal land-use change in Southeast Asia have been attributed to shrimp farming, according to nonprofit think tank Planet Tracker.

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Trawling for wild shrimp, meanwhile, can impact other marine life and destabilize fragile ecosystems. By the time seafood reaches dinner plates in the US, Europe or Japan, it’s often traveled thousands of miles from farms in China, Thailand or Brazil — racking up a hefty carbon footprint. 

To that end, shrimp farming’s best future might look like a mashup of a data center and your local parking garage — if Vertical Oceans has anything to do with it. The startup says its algorithms enable shrimp production in autonomous tanks, which it plans to stack near onshore demand centers like Las Vegas or Tokyo, eliminating ocean discharge. The approach produces locally grown food harvested and delivered to your doorstep the same day.

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“We’re demonstrating what the future of efficient protein production could look like,” says co-founder and Chief Executive Officer John Diener.

Vertical Oceans is the latest company aiming to develop more sustainable onshore aquaculture models for core food sources. Land-based production of salmon, for instance, can offer ecological benefits when the fish are raised in saltwater pens because it removes the animals from natural marine habitats, eliminating the risk they can pass on viruses and parasites to wild species. 

Read more: Want Cleaner, Healthier Salmon? Raise Them on Land

Investor appetite for food-related tech companies is surging with venture capitalists plowing more than $39 billion into the sector in 2021, double the amount they financed the year before, according to research group Pitchbook Data Inc. Although more than half of that funding went to digital grocers and online marketplaces, aquaculture is poised to become a larger part of the supply chain.

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Venture capital firms Khosla Ventures and SOSV invested a combined $4 million during Vertical Oceans’ seed round mid last year.

Risks for systems like the one Vertical Oceans is building are that if either the mechanical or biological system breaks down, things can go awry, said Cyr Couturier, a marine biologist and aquaculture scientist at the Fisheries and Marine Institute of Memorial University of Newfoundland in Canada. Companies can encounter challenges when they attempt to scale up production, although Vertical Oceans’ modular design should allow it to expand in small increments, as long as it can service capital requirements, he said.

Couturier said he’s seen multiple systems for salmon and shrimp production run into problems over the past decade because engineers didn’t understand how the organisms would interact with the facilities they built.

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“Biological systems are often unpredictable over the longer term,” Couturier said in an email.

Vertical Oceans’ tanks are roughly the size of a school bus. They aerate and recirculate the water, feed the shrimp and use macro-algae like umibudo to gobble up nitrogen, phosphorus and feces, eliminating the need to discharge waste water, according to Diener. The company doesn’t use any chemicals or antibiotics in production and the multispecies environment results in a much healthier aquatic ecosystem.

“The reason we’re able to avoid bacterial pathogenic problems is largely because we’ve got this healthy and more balanced ecosystem,” said Diener.

There’s also hope tank-grown seafood can deliver on the most important point for most consumers: taste. Scientists have found that ocean acidification — caused by excessive amounts of dissolved carbon dioxide — is making shellfish less appealing to our palates.  

Vertical Oceans has produced about 1 metric ton of shrimp so far through a proof-of-concept project located on a small recreational island off the coast of Singapore and is looking to open its first commercial site in the US next year. The company has been selling directly to consumers in Southeast Asia and supplying local eateries, including Singapore restaurant Open Farm Community.



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