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Wild vs farmed fish: what should you choose?

Wild vs farmed fish: what should you choose?
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In just three decades it is estimated we will need 70 percent more food than we do today to feed the world's population. With global fish captures stagnating since the 1980s and marine resources already stretched to the limit, fish farming is increasingly seen as one way to satisfy the world's growing food needs.

Advancements in fish farming technology are helping to bridge this gap and make fishing more sustainable, however, contrary to popular belief, some believe farmed fish is tastier than its wilder cousin.

Chef Nelson Pérez runs the high-end fish restaurant Nelson on Gran Canaira. It serves locally farmed fish as a delicacy.

“I’ve been working with farmed fish for 25 years. In the past, fish that came from farms all tasted the same, be it sea bass or gilt-head bream, they all had the same taste and a strong smell of fish oil. But now that’s no longer the case, nowadays each type of fish has its own proper flavour," Nelson explains.

Innovative fish pen design

The fish Nelson uses in his restaurant were reared just a few kilometres away at a farm called Aquanaria. The firm says its goal is to produce perfect fish for high-end restaurants. Thanks to an innovative design, Aquanaria's fish pens are fixed well away from the shore in strong Atlantic currents. This allows for a constant flow of water enabling the fish to get lots of exercise, which improves their well-being and taste.

“Normally the weather is quite rough here,'' explains Aquanaria's Commercial Director Pedro Sánchez. He adds: "We have a lot of currents, strong currents, we have a lot of waves. That means that we need to keep the structures in the place, there is a lot of very sophisticated mooring systems, grid systems, everything is connected — so we can really make sure that no matter how big the storm is, we’re still in place.”

The growing fish farming sector

The production is tightly controlled in order to meet strict European food, water, animal health, and environmental protection standards. Around 80,000 people across the European Union currently work in fish farming. Such jobs, often in remote areas with few opportunities, can be vital.

The fishing farming sector is steadily growing but many think there is real potential for growth given that two thirds of all seafood consumed in the EU is currently imported.

“We are not interfering with the nature, we cannot over-harvest, because we are basically putting our fish here when they are small, we grow them and we harvest them. It’s a closed cycle, so we are not really over-harvesting the fish from the wild," Sánchez insists.

Research and innovation

Research and innovation, part funded by the EU, is helping to address the impact of fish farming. Kingfish Zeeland is a fish farm based in the Netherlands. It pumps clean sea water through a state-of-the-art recirculation system, using renewable energy, organic fish feed and zero antibiotics.

“It’s an expensive way of growing fish, and therefore we had to find the most premium product that we can grow in it. Specifically the choice of yellowtail kingfish — it’s one of the most expensive fish in the market. But from a demand-supply perspective — it’s used in Europe as fully imported fish from Japan or Australia. So the ability to grow a premium product near market was critical for us to be able to invest and build such a technology and the production facility," says Ohad Maiman, Kingfish Zeeland's CEO.

“It’s very fresh taste"

Mart Scherp, who runs a restaurant in the Dutch city of Middelburg, says demand for high-quality produce is outstripping supply, insisting many restaurants are ready to replace threatened wild species or frozen imports with fresh, sustainable local fish that are farmed in such a way.

“It’s very fresh taste," Scherp explains, adding: ''the texture is a little bit between the tuna and sea bass. It’s a very nice texture… We roast it, we fry it, we grill it, you can serve it raw, you can make a ceviche. So it’s a very versatile fish, you can use it for many preparations.”

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