Nigeria is surrounded by opportunity — and wasting it.

With over 853 kilometres of coastline and vast inland waterways, Nigeria should be a continental leader in marine-based economic growth. Instead, we remain dependent on imported fish, fragmented fisheries policies, and undercapitalised aquaculture systems.

The numbers are stark.

According to the Food and Agriculture Organisation and data from the National Bureau of Statistics, Nigeria’s annual fish demand exceeds 3.6 million metric tons. Total domestic production from both capture fisheries and aquaculture is estimated at roughly 1.1 to 1.3 million metric tons per year, with capture fisheries contributing the larger share and aquaculture accounting for approximately 30 to 35 percent of output in recent years. This leaves a supply gap of more than 2 million metric tons, which is bridged through imports.

The result is a persistent drain on foreign exchange, running into billions of dollars annually, resources that could instead catalyse rural enterprise, strengthen coastal economies, and expand climate-resilient aquaculture value chains. At the same time, youth unemployment remains elevated, while climate pressures intensify across Nigeria’s coastal and fishing communities through sea level rise, erosion, and ecosystem degradation. Together, these dynamics reinforce the case for repositioning fisheries and aquaculture as strategic pillars of food security, job creation, and climate adaptation.

This is not simply a fisheries issue.

It is a structural policy gap.

Across the world, governments are repositioning their marine sectors under what is now widely known as the “blue economy” — a framework that integrates marine science, finance, environmental sustainability, and industrial policy. The European Union has embedded blue growth within its Green Deal. Norway has transformed aquaculture into a multi-billion-dollar export engine through coordinated research, regulation, and access to capital. Even small island states such as Seychelles have issued sovereign blue bonds to finance sustainable fisheries.

Nigeria, by contrast, approaches its aquatic resources in silos — fisheries in one corner, maritime transport in another, environmental protection elsewhere, and agricultural policy disconnected from marine value chains. The result is predictable: underperformance.

If Nigeria is serious about diversification and food security, aquatic resources must be treated as national economic infrastructure — not peripheral sectors.

A credible blue economy strategy would require three shifts.

First, aquaculture must evolve beyond subsistence practices into a systems-driven industry. Modern fish farming goes far beyond pond stocking; it requires efficient feed formulation, improved hatchery technology, climate-smart production methods, and strong value-chain integration from farm to market. Countries that have adopted this structured approach have expanded output sustainably. With its ecological diversity and large domestic market, Nigeria can achieve similar gains, but only through deliberate technical planning and coordinated investment.

Second, marine development must be anchored in financial innovation. Around the world, blended finance structures, sustainability-linked bonds, and conservation trust funds are mobilising billions of dollars for ocean-based industries. Nigeria, however, has yet to design tailored financial instruments that de-risk aquaculture and coastal enterprises. Without such capital innovation, growth in the marine sector will remain fragmented and overly reliant on short-term donor support.

Third, natural capital must be valued as economic capital. Nigeria’s mangroves and coastal wetlands provide fisheries support, erosion control, and carbon sequestration. Yet these ecosystems are not integrated into national economic planning or climate finance strategy. In a climate-constrained global economy, countries that fail to quantify and protect natural capital will struggle to attract investment.

The urgency is real.

Climate change is altering marine productivity. Coastal erosion is accelerating. Import dependency strains foreign exchange reserves. Youth employment pressures persist. Without a coordinated marine strategy, these vulnerabilities will compound.

A national blue economy framework would not simply rename agencies. It would align marine science, finance, and policy into one coherent growth strategy.

Nigeria does not lack water.

Nigeria does not lack demand.

What we lack is coordination and vision.

The blue economy is not a slogan. It is a systems approach. And the longer Nigeria delays in institutionalising it, the more opportunity it forfeits.

Dr Babatunde Adeleke is an expert in sustainable finance and development, blue economy, and bioeconomy, with an extensive interdisciplinary background spanning multiple countries across Sub-Saharan Africa and the Western Indian Ocean region. He is an independent consultant based in Geneva.