By Christopher Burke
Across Africa’s coasts, environmental change is often first recognised by the people who live closest to it. Coastal communities across Africa notice declining catches, shifting spawning grounds and industrial trawlers moving nearer to shore. They see mangroves cleared, plastic waste accumulating in creeks and polluted water entering the sea. Satellites may record vessel movements and vegetation loss, while official assessments may still conclude that significant harm has not been established.
What happens next often depends on the forms of evidence that public institutions, private actors and other stakeholders are prepared to recognise.
Africa’s seas are under pressure from climate change, biodiversity loss, pollution and unsustainable exploitation. The African Union recently highlighted these overlapping threats at the 2026 Our Ocean Conference. The United Nations Environment Programme (UNEP) described coastal environments as caught in a triple planetary crisis comprising pollution, biodiversity loss and climate change. Coral reefs, mangroves, seagrass beds, fisheries and estuaries support food security, livelihoods and coastal protection. Their decline weakens the ecological systems on which communities and national economies depend.
The protection of these systems increasingly requires data. Vessel-tracking signals, satellite imagery, radar, catch records, water-quality tests, habitat maps and carbon measurements allow governments to observe maritime spaces. A 2024 Nature study combining satellite imagery, artificial intelligence and vessel-broadcast data revealed extensive industrial activity not available on public tracking systems. More recent analysis found dense vessel activity off northern and western Africa where public systems had previously shown little to none.
This visibility can expose illegal fishing, direct patrols and reveal pressure on protected habitats. However, visibility is never complete and data is never neutral. A signal can be switched off or misread, satellite imagery can locate a vessel without proving what it was doing and many artisanal boats operate beyond global systems. Pollution can be visible to a coastal community well before it appears in an official dataset.
While many African countries have environmental and fisheries policies and laws, their capacity to produce trusted evidence that those rules are being followed remains uneven. Ugandan governance specialist Julius Peter Kinyera describes this wider phenomenon as “evidence substitution.” The increasing reliance on institutionally recognised forms of evidence comprising audits, certifications, satellite observations and traceability systems where direct public observation is limited or impractical. Evidence substitution is not the destination, but a manifestation of how modern governance operates under such conditions submits Kinyera. The deeper challenge is often not the absence of rules, but the institutional capability to generate trusted evidence that responsibilities are being fulfilled.
The ecological stakes are high. A 2025 assessment by the <ahref=”https://www.fao.org/newsroom/detail/fao-releases-the-most-detailed-global-assessment-of-marine-fish-stocks-to-date/en”>Food and Agriculture Organization of the United Nations (FAO) found that 35.5 per cent of assessed marine fish stocks were overfished. Better-managed fisheries generally perform better, clearly demonstrating that effective management and evidence-based enforcement matter. Data systems can nevertheless reproduce inequality. Financial-regulation specialist Kevin Liu describes the divide as not simply who behaves responsibly, but “who has the resources to demonstrate it.” Large operators can afford monitoring technology, consultants and certification. Small fishing enterprises may use less destructive methods, but lack the records needed to prove this.
Private actors can therefore become environmental gatekeepers. Satellite companies, seafood certification bodies, auditors, insurers and major buyers influence whether catches enter markets and whether conservation or blue-carbon projects receive finance. International development and climate-finance adviser and managing director of LegacIA Branding & Capital Raphaël Biassou Hérissé bluntly summarises this downstream power: “offtakers rule.”
Waithera Ng’ang’a, a corporate affairs and food-systems leader, makes the practical consequence clear: “Just because it is permissible in your country does not mean the final markets will accept your market offering.” For seafood and other food products, Ng’ang’a stresses the importance of transparent rules of origin, traceability from catch to consumer and alignment with the quality and safety requirements of destination markets. Internationally recognised certification schemes such as ISO 22000 and FSSC 22000 can help demonstrate compliance, but they also reinforce the wider point–market access increasingly not only depends on responsible practice, but on producing evidence in forms that final buyers recognise.
This power extends beyond fishing. Mangroves and seagrass support biodiversity, provide nursery grounds for marine life, stabilise coastlines and store carbon. Both remain among the world’s most threatened coastal ecosystems, although the scale and rate of loss vary considerably between regions and datasets. Kenya’s community-led Mikoko Pamoja project in Gazi Bay, Kwale County, provides a practical example of how verified carbon storage can finance mangrove conservation while supporting local priorities. The project covers approximately 117 hectares of mangroves, while carbon-credit revenue has supported clean drinking water, schoolbooks and other community initiatives. Every measurement system involves choices around establishing boundaries and baselines, classifying degradation and determining what counts as an additional benefit. These decisions affect how much carbon is credited, which activities are restricted and who receives the proceeds.
The same evidentiary challenge applies to plastics, wastewater, agricultural runoff, industrial discharge and other forms of marine pollution. UNEP estimates roughly 80 per cent of marine pollution originates on land. Without credible testing, transparent reporting and publicly accessible records, environmental damage can remain institutionally invisible even when coastal communities experience it directly. Satellite imagery, company reports and certification systems may help identify risks, but they cannot substitute for independent sampling, enforceable disclosure and capable public institutions. As former Assistant Professor at University of Mumbai Kshipra Vasudeo observes, maritime resilience is “not only about military capabilities but infrastructure, governance and partnerships.” Environmental monitoring is not a technical addition to maritime resilience but one of its foundations.
Community knowledge must also carry greater weight. Coastal residents may recognise changing currents, damaged breeding areas or declining catches through years of observation. This knowledge is often oral and difficult to translate into a dashboard. Corporate evidence, by contrast, usually arrives already formatted as coordinates, spreadsheets and audits. Satellite records are often treated as evidence until challenged, while community accounts are treated as allegations until verified.
FAO’s Voluntary Guidelines for Securing Sustainable Small-scale Fisheries in the Context of Food Security and Poverty Eradication (SSF Guidelines) emphasise consultation, co-management and fishing communities as stewards of natural resources. Digital systems need not displace participation. The Peskas system, used in Kenya, Tanzania and Mozambique, combines trackers and open dashboards to improve knowledge of small-scale fishing. The question is whether communities shape these systems or merely supply the data.
Technology alone is not environmental sovereignty. Security specialist Moses Aisu argues that technology transfer must be matched by the “sovereign capability to govern technology” through credible regulators, transparent licensing and credible enforcement. Nor can every coastal state build the required capacity alone. Community and policy specialist Perez Mweine points out that African states lose leverage when negotiating individually rather than through regional blocs. Shared laboratories, interoperable monitoring and joint verification can make environmental evidence more credible and affordable.
Protecting Africa’s oceans therefore requires more than jurisdiction over territorial waters and exclusive economic zones. It requires the capacity to collect, interpret and contest the evidence used to govern marine ecosystems. African governments, universities, laboratories and fishing organisations need meaningful roles in defining baselines, accrediting auditors, managing public data and integrating community knowledge. UNESCO’s recent data toolbox places observation and accessible evidence at the centre of marine spatial planning.
Africa’s marine biodiversity cannot be protected if ecological damage remains unseen, disputed or defined through systems controlled elsewhere. Data can reveal overfishing, disappearing mangroves and marine pollution, but its value ultimately depends on whether it strengthens public institutions and enables coastal communities to participate in environmental governance. Evidence has become authority. The task is to ensure that authority protects the ocean itself.
——————————————
