How Aquaculture is Transforming Food Production

Japan Builds Floating Ocean Farm That Produces Food and Energy Japan has launched the world’s first large-scale floating ocean farm, designed to harvest both seafood and renewable energy. The futuristic platform sits on massive pontoons anchored offshore, combining aquaculture, solar panels, and wind turbines in one system. Fish and shellfish are farmed in submerged cages below the platform, while seaweed cultivation absorbs carbon dioxide from seawater, improving ocean health. Above the surface, solar arrays and vertical wind turbines generate clean electricity. The hybrid design solves two challenges at once: producing sustainable food and meeting energy demands. Engineers optimized the system to withstand typhoons and saltwater corrosion, using lightweight carbon fiber structures. AI-powered monitoring systems track water quality, fish growth, and power output. The entire farm can be managed remotely, with automated feeding systems and robotic cleaners reducing maintenance needs. Japan sees these farms as critical to future food security. With limited land and growing demand, the sea may provide the nation’s next agricultural revolution. If scaled, floating ocean farms could feed millions while reducing reliance on fossil fuels and land-based agriculture.

A farm that feeds fish, grows vegetables, and cleans its own water all in one system. That is “aquaponics”. Aquaponics is more than a farming technique; it’s a living, breathing system that redefines sustainable food production in today’s world. At its core, it brings together fish farming (aquaculture) and soil-less crop production (hydroponics) into one integrated, self-sustaining ecosystem. But the real strength isn’t just in combining them, it’s in how they work together. In a typical aquaponics setup, fish are raised in tanks where they are fed and naturally produce waste. This waste contains ammonia, which would normally be harmful. But beneficial bacteria convert it into nitrates nutrients that plants can absorb for growth. The nutrient-rich water is then circulated to the plants. As plants take in these nutrients, they clean and filter the water before it returns to the fish tank. And just like that, a continuous, closed-loop cycle is created. This natural collaboration between fish, plants, and microorganisms is what makes aquaponics unique: • Fish provide nutrients • Bacteria transform waste • Plants purify the water Nothing is wasted. Everything has purpose. WHY AQUAPONICS MATTERS TODAY In a world facing land scarcity, water shortages, and growing pressure on food systems, aquaponics offers a smarter alternative. It uses significantly less water than traditional farming because the same water is constantly recycled. It eliminates the need for chemical fertilizers by relying on natural biological processes. And it allows food production in places once considered impossible rooftops, greenhouses, and controlled environments. This means: • Less environmental impact • Higher efficiency • Food produced closer to people A SYSTEM BUILT FOR THE FUTURE Aquaponics represents a shift from linear agriculture to circular agriculture. Instead of: Input → Production → Waste It becomes: Input → Production → Reuse → Regeneration That’s why aquaponics is considered a key part of climate-smart agriculture and future food systems. Within one system, it produces: • Fish (protein) • Vegetables and herbs • Clean, chemical-free food All at the same time. Aquaponics is not just about growing food, it’s about rethinking agriculture entirely. It challenges the idea that farming must rely on large land areas, heavy inputs, and separate systems. Instead, it proves that with the right design, agriculture can be: • Integrated • Efficient • Sustainable • Scalable Aquaponics shows us that nature already provides the blueprint. And when we stop separating systems and start connecting them… We don’t just grow food we build resilient ecosystems that can feed the future.

🐟 80% of the salmon we eat isn’t wild, it’s farmed. Raised on engineered diets and tinted with synthetic pigments, its orange hue is no longer a gift of nature but a paint-by-numbers palette built in a feed mill. Humanity hit the ceiling for wild-caught fish in the 1970s — a plateau that still holds. Industrial fleets pushed ocean ecosystems to their limits, peaking near 90 million tons per year. Yet appetites grew. As nations industrialized and incomes rose, seafood shifted from luxury to staple. Demand surged — but the oceans couldn’t keep up. Along Norway’s fjords, brothers Ove and Sivert Grøntvedt tried something many dismissed: raising salmon in floating net pens. The fish often died, storms tore cages apart — but the Norwegian government saw potential. By the 1980s, salmon farming was strategic. Norway offered subsidies and site licenses, feed shifted from scraps to pellets, and selective breeding produced faster-growing fish. Companies like Mowi, Lerøy Seafood Group ASA, and Cermaq Global integrated hatchery, grow-out, and processing. The result was transformative. In 2000, farmed salmon surpassed wild harvest — about 1.2 million tons versus just under 1 million. But success brought a new challenge: how to feed a billion fish. Fishmeal had long been aquaculture’s backbone — but at a steep cost. Early feed systems sometimes needed four tons of wild fish to produce one ton of salmon — a paradox that risked collapsing the system. Prices tripled in a decade, and soy, the main plant substitute, lacked key amino acids. The breakthrough wouldn’t come from the sea but the ground. Black Soldier Fly Larvae (BSFL) are an insect that thrives on waste — fruit pulp, brewery grains, food scraps — and under controlled conditions can turn it into protein in weeks. They don’t just consume waste; they repurpose it, producing an amino acid profile similar to fishmeal. Early academic research proved the concept, but it wasn't commercialized until Protix, a Dutch startup founded in 2009, built the infrastructure. Even then, regulation blocked scale. Until 2017, insect protein couldn’t legally be used in EU aquafeed. That changed with EU Regulation 2017/893, unlocking the market. Protix and rival Innovafeed were ready — and soon, feed giants like Cargill and Skretting followed. Cargill’s 2019 partnership with InnovaFeed marked one of the first major integrations of insect meal into commercial feed. Today, less salmon chase krill naturally than grow on diets built from insects and food waste — their color restored by pigments, their growth tuned to global demand. In a few decades, we’ve taken a wild animal and re-engineered it for efficiency and scale. It feeds millions. It helps solve scarcity. But it also asks an uncomfortable question: in reshaping salmon to serve us, have we improved nature — or overwritten it? We no longer harvest the ocean; we manufacture it. And whether that’s a triumph or a warning depends on how we choose to see what comes next.

Ben Gurion University researchers offer proof of concept for unique aquaponics system. Climate change poses a severe threat to food production accelerating the need to develop sustainable methods. One method is aquaponics, which grows fish and vegetables together using less energy than conventional systems. Israel and the Netherlands 14 August 2024 Key: Aquaponics, Sustainability, Circular Economy, Anaerobic Digestion, Energy Recovery, Near Zero Waste Excerpt: Aquaponic systems grow fish while using fish waste to grow vegetables hydroponically. Coupled aquaponics are closed loop systems that recycle much of the fish effluent rather than reusing it outside of the aquaponic system. Where typically the fish solid waste is disposed of, research led by Prof. Amit Gross managed to treat it by anaerobic digestion and recover energy and nutrients into the system to form a near zero waste unit. Excerpt: After more than two years of testing, Prof. Gross's system demonstrated 1.6 times higher plant areal productivity, 2.1 times lower water usage and 16% less energy consumption per kilogram of feed than conventional systems. His calculations suggest upscaling to about one ton of fish will allow operation of the system with no need for external energy, less than 1% water exchange, negligible waste production as well as significant carbon sequestration. "Feeding more than 8 billion people on the planet while reducing greenhouse gas emissions will require innovative technologies. Those that combine two functions in one are preferable. Fish are a sustainable high-quality source of protein with a far smaller carbon footprint than most other sources. Combining fish growth with vegetable production and preventing waste is a win-win-win," says Prof. Gross. Additional researchers included: Dr. Ze Zhu and Dr. Uri Yogev from Ben-Gurion University and Prof. Karel Keesman from Wageningen University and Research in the Netherlands. Link to video narrated by Prof. Gross in the enclosed announcement. Elsevier: Resources, Conservation and Recycling Volume 208, September 2024, 107716 Promoting circular economy: Comparison of novel coupled aquaponics with anaerobic digestion and conventional aquaponic systems on nutrient dynamics and sustainability https://lnkd.in/e4QxD-GZ https://lnkd.in/egeunXF6

In China, vertical fish farms are revolutionizing aquaculture by stacking skyscraper-like tanks that raise millions of fish in a fraction of the space needed for traditional ponds. These multi-story facilities use advanced filtration and recirculation systems to reuse water, drastically cutting consumption while maintaining clean, healthy habitats for the fish. The design not only conserves valuable land but also allows year-round production, unaffected by weather or seasonal changes. Automated feeding, water quality monitoring, and waste recycling make the system highly efficient and sustainable. By producing large quantities of seafood close to urban centers, these farms reduce transport costs and carbon emissions. Vertical fish farming is a perfect blend of innovation, resource efficiency, and food security — showing how cities can feed growing populations without exhausting natural resources.

Norway engineered a floating greenhouse that produces food, fish, and clean energy — all at once In the coastal waters near Bergen, Norwegian engineers have launched a circular floating greenhouse island that could revolutionize food and energy production. Called “Ocean Bloom���, the structure combines aquaponics, solar energy, and desalination — all within a single self-sustaining ring. The greenhouse sits on a floating pontoon that houses solar panels, water purifiers, and wind turbines. Inside, freshwater plants grow in nutrient-rich water tanks that are fed by fish waste from integrated aquaculture systems below the surface. This closed loop ensures that no external fertilizers or chemicals are needed — only sun, air, and seawater. At the heart of Ocean Bloom is a desalination unit powered by solar-heated steam and ocean wave motion. It converts seawater into fresh irrigation supply, while also generating enough surplus electricity to power nearby villages or data buoys. In trials, the greenhouse produced over 5x more leafy greens per square meter than land-based farming — with zero soil, zero emissions, and nearly zero waste. Even better: it acts as a carbon sink by absorbing CO₂ through its algae bioreactor ring, helping reverse ocean acidification. Norway plans to scale this tech to archipelagos and low-lying countries facing rising seas. Entire food systems may soon float on the water they once feared — clean, productive, and climate-proof.

🐟 From Pigs to Salmon: The Netherlands’ First Salmon Farm Opens in Uden 🇳🇱 A unique transformation has taken place in Uden, North Brabant: the former pig stables of farmer John Wijdeven have been converted into the Netherlands’ first salmon farm. Led by Rob Dortmans, Salmon Farm Maashorst combines advanced aquaculture systems with sustainable goals. 🔹 Scale & Production Currently raising 73,000 salmon (incl. 19,000 eggs from Iceland). Target: 200,000 kg of salmon annually. Lifecycle: 1 year indoors (to ~100 g), 1 year outdoors (to ~4.5 kg), before processing directly on-site. 🔹 Sustainability Benefits 🐖 Replacement of 6,000 pigs → salmon farming drastically reduced nitrogen emissions and eliminated odor/noise nuisances. 💶 Backed by €1 million in support (EU: €850,000, North Brabant: €150,000). 🚚 Cuts dependency on imported salmon from Norway by producing locally for Dutch markets. 🔹 Market Outlook Starting December 2025, Maashorst salmon will be served in restaurants across the ’s-Hertogenbosch – Eindhoven – Nijmegen triangle and sold directly from the farm. With salmon as the most consumed fish in the Netherlands, the project strengthens local food security while pioneering circular and integrated aquaculture. 👨🌾 Wijdeven, who farmed pigs for 35+ years, now manages the catering and educational facilities at the salmon farm. He sums up the difference humorously: “A salmon weighs 4.5 kilos, a pig 120. Both are pink—but salmon are much easier on the back.” This project is a striking example of agricultural transition, showcasing how innovation, sustainability, and market demand can drive new business models in rural Europe. #Aquaculture #Sustainability #FoodSecurity #Innovation #Netherlands #AnimalProtein #AgriTransition https://lnkd.in/dZpq4nBw

🇸🇦 Aquaculture in Saudi Arabia: A Rapidly Growing Sector Aquaculture is one of the key pillars of Saudi Arabia’s food security strategy under Vision 2030. The Kingdom has seen rapid growth and investment in both marine and inland aquaculture projects in recent years. ⸻ 📊 Production Growth and Figures • In 2023, total aquaculture production exceeded 140,000 tons, up from 90,000 tons in 2021, marking a 56.4% increase. • The total fishery production (aquaculture + wild catch) reached 214,000 tons in 2023. • Aquaculture (fish and shrimp) grew by 26% in 2023 alone: • 73,500 tons of fish • 66,400 tons of shrimp ⸻ 🐟 Key Species and Types • Marine aquaculture includes: • Shrimp (Litopenaeus vannamei) • Sea bass (Dicentrarchus labrax) • Sea bream (Sparus aurata) • Inland aquaculture focuses mainly on: • Tilapia (Nile tilapia) • Carp, and ornamental fish. • The Qassim region leads in inland production and uses advanced Recirculating Aquaculture Systems (RAS). ⸻ 🏗️ Infrastructure and Investments • In partnership with KAUST and the Ministry of Environment (MEWA), Saudi Arabia plans to raise aquaculture production to 530,000 tons/year by 2030, including an additional 280,000 tons. • Over $4 billion in investments are being mobilized to support infrastructure like hatcheries, fish feed plants, water treatment systems, and aquaculture health labs. • 342 licensed aquaculture projects as of 2024. • Self-sufficiency in seafood has reached ~56%, and the Kingdom exports to over 35 countries. ⸻ 🌍 Economic and Social Impact • The sector is expected to create over 200,000 jobs by 2030. • Strong government support through subsidies, soft loans, and technical guidance for small and medium fish farms. • About 95% of farms are certified under Best Aquaculture Practices (BAP). ⸻ 🧪 Technology & Innovation • Widespread adoption of RAS (Recirculating Aquaculture Systems) to save water and improve biosecurity. • R&D efforts to introduce new species like trout and salmon in cooler regions such as Hail. • Integration of aquaculture with seaweed and biofiltration systems to enhance sustainability and reduce environmental impact. ⸻ 🚢 Exports and Trade • Exported nearly 60,000 tons of aquaculture products (fish, shrimp, ornamental fish) in 2023, valued at over 1.1 billion SAR (~$293 million). • Export destinations include USA, Europe, Asia, and GCC countries. • The Qatif Fish Island Project is being developed as a modern seafood hub in the Eastern Province to support trade and logistics. ⸻ ✅ Summary • Rapid growth: from 32,000 tons in 2016 to over 140,000 tons in 2023. • Diverse species, advanced technology, and strong government support. • A vital part of Saudi Arabia’s Vision 2030 and food security ambitions. • Positioned to become a global aquaculture leader, especially in warm-water marine species

🌊 ���𝗻𝗻𝗼𝘃𝗮𝘁𝗶𝗼𝗻 𝗶𝗻 𝗮𝗾𝘂𝗮𝗰𝘂𝗹𝘁𝘂𝗿𝗲 𝗱𝗼𝗲𝘀 𝗻𝗼𝘁 𝗯𝗲𝗴𝗶𝗻 𝘄𝗶𝘁𝗵 𝗴𝗹𝗼𝘀𝘀𝘆 𝘁𝗲𝗰𝗵𝗻𝗼𝗹𝗼𝗴𝘆. 𝗜𝘁 𝗯𝗲𝗴𝗶𝗻𝘀 𝘄𝗶𝘁𝗵 𝘄𝗵𝗮𝘁 𝗳𝗮𝗿𝗺𝗲𝗿𝘀 𝗰𝗮𝗻 𝘂𝘀𝗲, 𝗮𝗻𝗱 𝘄𝗵𝗮𝘁 𝗳𝗶𝗻𝗮𝗻𝗰𝗲 𝗰𝗮𝗻 𝗯𝗮𝗰𝗸. Last week I was in Bạc Liêu, one of the hubs of Vietnam’s shrimp sector, visiting Good Tôm. Shrimp farming here is central to livelihoods but it is also exposed to disease, weather and market risks that make production highly uncertain. Together with founder Dragos Mircea and his colleagues Mr Dinh, Mr Sơn and Mr Chinh, I saw how much impact practical interventions can have: • aerators connected to airlift pumps that flush pond waste and reduce disease pressure • nets and shading that help keep pond environments stable • in-pond cages that allow additives to be tested before wider application • digital tools that give all technical staff quick insights they can act on These are not headline technologies. But they matter. They improve resilience, lower mortality, and reduce the situations where antibiotics might otherwise be used. Good Tôm’s clear commitment to farming without antibiotics is not only because they are banned, but because they create antimicrobial resistance and undermine the reputation of aquaculture as a whole. The harder part is finance. Shrimp ponds are notoriously difficult to fund because disease and weather risks are high, and capital providers rarely want exposure to that volatility. That is why most finance flows through the supply chain after shrimp are harvested rather than into the ponds themselves. As Dragos put it: “𝘌𝘷𝘦𝘳𝘺𝘣𝘰𝘥𝘺 𝘤𝘭𝘢𝘪𝘮𝘴 𝘵𝘰 𝘣𝘦 𝘴𝘶𝘱𝘱𝘰𝘳𝘵𝘪𝘷𝘦 𝘰𝘧 𝘧𝘢𝘳𝘮𝘪𝘯𝘨, 𝘺𝘦𝘵 𝘪𝘯𝘷𝘦𝘴𝘵𝘰𝘳𝘴 𝘢𝘯𝘥 𝘣𝘢𝘯𝘬𝘴 𝘧𝘶𝘯𝘥 𝘢𝘯𝘺𝘰𝘯𝘦 𝘣𝘶𝘵 𝘵𝘩𝘦 𝘧𝘢𝘳𝘮𝘦𝘳𝘴 𝘵𝘩𝘦𝘮𝘴𝘦𝘭𝘷𝘦𝘴. 𝘛𝘩𝘦𝘺 𝘴𝘢𝘺 𝘪𝘵 𝘪𝘴 𝘵𝘰𝘰 𝘳𝘪𝘴𝘬𝘺 – 𝘣𝘶𝘵 𝘴𝘰𝘮𝘦𝘣𝘰𝘥𝘺 𝘩𝘢𝘴 𝘵𝘰 𝘧𝘪𝘯𝘢𝘯𝘤𝘦 𝘪𝘵 𝘪𝘧 𝘸𝘦 𝘸𝘢𝘯𝘵 𝘧𝘰𝘰𝘥, 𝘯𝘰? 𝘖𝘣𝘷𝘪𝘰𝘶𝘴𝘭𝘺 𝘵𝘩𝘦𝘳𝘦 𝘢𝘳𝘦 𝘦𝘹𝘤𝘦𝘱𝘵𝘪𝘰𝘯𝘴. 𝘉𝘶𝘵 𝘪𝘯 𝘨𝘦𝘯𝘦𝘳𝘢𝘭: 𝘵𝘩𝘦𝘳𝘦 𝘪𝘴 𝘯𝘰 𝘧𝘪𝘯𝘢𝘯𝘤𝘦 𝘧𝘰𝘳 𝘭𝘪𝘷𝘦 𝘴𝘩𝘳𝘪𝘮𝘱, 𝘰𝘯𝘭𝘺 𝘧𝘰𝘳 𝘥𝘦𝘢𝘥 𝘰𝘯𝘦𝘴.” With better data, stronger risk management and insurance that can share risk more intelligently, the equation can shift. Farms that can demonstrate their practices and outcomes should be able to access working capital at fair rates. Aquaculture already feeds millions. The real question is whether we can finance and scale the version that delivers food security within planetary boundaries. On farms like these, you can see what that might look like. #Aquaculture #FoodSystems #BlueTransformation #WorkingCapital #SustainableFarming

Today's podcast conversation opened my eyes further to the Blue Economy in ways I hadn't expected. We talk so much about land-based solutions to climate challenges, but as Julia Marsh from Sway reminded me – we live on a blue planet. The World Bank estimates seaweed aquaculture could create 100 million direct and indirect jobs globally. Not a typo. 100 million! For coastal communities hit by overfishing and warming waters, this isn't just about replacing plastic packaging. It's about economic transformation. Julia was refreshingly honest about the challenges – seaweed farming isn't as simple as it sounds. Storms, nutrient variability, the dynamic ocean environment all make it complex. But the opportunity remains massive. What really resonated was Julia's point about accessibility. Unlike many emerging technologies that require massive capital investment, seaweed farming uses much of the same equipment as traditional fishing – ropes, buoys, boats. It's a pathway that existing maritime communities can actually take. The plastic industry better be paying attention. When you combine job creation, ecosystem regeneration, and a material that actually works with existing manufacturing infrastructure, you're not just disrupting an industry – you're building an entirely new economy. Sometimes the best solutions aren't about fighting against something, but building toward something better. #BlueEconomy #Sustainability #EconomicDevelopment #Innovation #PlasticAlternatives #SeaweedAquaculture #JobCreation