For better or worse – often for worse – aquaculture is the fastest-growing animal-based food industry. Half the seafood eaten in the US is farmed, and most of that is imported. Yet it’s not unusual for fish farms to pollute local waters, damage coastal habitatand deplete the oceans of feeder fish. Or, as the Guardian reported last year, exploit slave labour.
Aqua-Spark, a global investment fund based in the Netherlands, aims to do better. The fund, which focuses exclusively on aquaculture, recently made its first two investments, putting $2m into a biotech company called Calysta, whose technology makes fish feed out of methane gas, and another $2m into Chicoa Fish Farm, a tilapia-farming startup in Mozambique that intends to build up aquaculture in sub-Saharan Africa.
These small steps won’t have much impact on the global aquaculture industry, which was valued at US $135bn in 2012 by IBIS World. But Aqua-Spark isn’t alone. Brands and retailers, including Unilever and Walmart, as well as NGOs such as the World Wildlife Fund, are all working to limit the environmental impacts of fish farming.