The team conducted a bibliometric analysis of the Web of Science database covering two decades of research, from 2004 to 2024. Starting from a structured search combining terms for financial mechanisms, fisheries sectors, coastal environments and socioeconomic outcomes, the authors screened 1,477 records and progressively refined the dataset through a PRISMA-style protocol, ultimately analysing 830 publications aligned with eight Sustainable Development Goals. The headline statistic is striking: research output in this field has grown at an annual rate of 23.084 percent, rising from a single article in 2004 to a peak of 109 publications in 2021. The field has clearly moved from the academic margins to the scientific mainstream, driven by converging pressures of climate change, declining fish stocks and a global policy reckoning over fisheries subsidies.

The analysis also reveals how the intellectual geography of the field has shifted. In the earliest period, from 2004 to 2012, research clustered around governance, marine protected areas, sustainability and fisheries management. Between 2013 and 2018, the focus pivoted toward climate change, vulnerability, risk management and the socioeconomic resilience of coastal communities. In the most recent period, from 2019 to 2024, themes expanded further to include integrated multi-trophic aquaculture, ecosystem services and bycatch. Keyword co-occurrence analysis using VOSviewer identified seven thematic clusters spanning management, conservation, aquaculture, welfare, resilience and social capital, with terms such as management appearing 178 times across the corpus. The United States leads national output with 161 articles, followed by Australia, China, the United Kingdom and India, with substantial international co-authorship signalling a genuinely collaborative research network.

At the heart of the review lies a sobering paradox: the very financial instruments designed to help fishing communities can either rescue them or push them toward ecological collapse. Global fisheries subsidies amount to approximately USD 35 to 40 billion annually, and a substantial share supports fuel, vessel construction and capacity-enhancing activities that intensify fishing pressure. While such subsidies temporarily stabilise incomes and keep fleets operational, they distort market signals, encourage overcapitalisation and contribute to stock depletion. The World Trade Organization’s 2022 Agreement on Fisheries Subsidies, the first multilateral trade agreement explicitly linking subsidy reform with environmental sustainability, now mandates the elimination of subsidies supporting illegal, unreported and unregulated fishing, the harvesting of overfished stocks, and unregulated fishing on the high seas. But the review warns that withdrawing these supports without offering alternatives can destabilise liquidity-constrained households that have long depended on them.

The alternative, the authors argue, is a carefully engineered architecture of financial mechanisms that reduces risk rather than amplifying it. De-risking instruments, credit guarantees, first-loss capital provisions, insurance-backed lending and concessional co-financing all work by lowering default risk, absorbing initial losses and improving borrower creditworthiness, thereby making small-scale fishers bankable to formal institutions. Community savings groups and microfinance schemes have demonstrated measurable benefits: randomised trials of village savings and loan associations, cited in the review, show significant improvements in the lives of the poor. When these tools are well designed, they enhance income stabilisation, facilitate livelihood diversification and incentivise sustainable practices, allowing fishers to invest in better gear, transition into aquaculture or tourism, and weather shocks such as storms or seasonal fishing bans.

Financial exclusion, however, remains the default condition for many fishing households. Fishers typically lack land or other assets that can serve as collateral, often have limited formal education, and work independently without credit histories. Banks frequently classify them as high-risk borrowers, and the seasonal, unpredictable nature of fishing income mismatches the rigid repayment structures of formal financial products. In the vacuum, informal lenders step in, often the very fish merchants and boat owners who control the fishers’ market access, creating dependency relationships that can trap households in cycles of debt. Women, who dominate processing and marketing segments of the value chain, face additional gender-specific barriers including limited financial literacy, restricted mobility and exclusion from formal decision-making structures, despite evidence that their financial inclusion generates significant gains in economic growth and social equity.

The stakes of getting finance right are enormous. In 2022, global fisheries and aquaculture production reached a record 223.2 million tonnes, and international trade in the sector generated USD 195 billion, about 9.1 percent of global agricultural trade. Marine and coastal resources are estimated to be worth roughly USD 3 trillion annually, around 5 percent of global GDP. For Small Island Developing States such as the Maldives and Seychelles, fisheries represent over 30 percent of total merchandise export value. Yet a study cited in the review estimates that USD 2.2 to 2.6 billion would be needed to lift the world’s fishers above poverty levels, as many do not even meet the extreme poverty threshold of USD 1.90 per person per day. Meanwhile, global blue finance remains heavily concentrated in large-scale conservation and industrial sectors, leaving small-scale fisheries with a disproportionately small share of climate finance and development assistance.

Innovative instruments are beginning to change that calculus. The Seychelles Blue Bond, backed by the World Bank and the Global Environment Facility, demonstrated that sovereign debt instruments can channel capital into marine conservation and the transition to sustainable fishing. Conservation trust funds, blended finance models and public-private partnerships are mobilising resources for biodiversity protection, marine research and protected areas. Insurance products are emerging as critical climate adaptation tools, protecting fishers from economic ruin during extreme weather events. The review also highlights the role of technology: satellite monitoring and data analytics are improving transparency and enforcement, while digital payment systems, exemplified by mobile money platforms in East Africa, are extending basic financial services to previously excluded coastal populations.

Mapping the literature against the Sustainable Development Goals reveals both promise and gaps. Financial support aligned with SDG 1 helps lift households out of poverty by funding productive assets; support tied to SDG 2 strengthens food security by enabling sustainable stock management; and finance directed at SDG 14 funds environmentally friendly gear and conservation programmes. Insurance and low-carbon investments contribute to SDG 13 on climate action, while mangrove and wetland rehabilitation financed through blue instruments serves SDG 15 and buffers coastlines against storms. Yet the review identifies critical weaknesses in the evidence base itself: a shortage of long-term empirical studies tracking the real-world impacts of financial interventions, and a lack of integrated socio-ecological policy frameworks that connect finance, governance and ecology across scales.

The authors’ conclusion is ultimately a call for strategic alignment. Financial mechanisms, from microloans and community savings groups to blue bonds and eco-certifications, can genuinely enhance the economic resilience and environmental sustainability of coastal communities, but only when embedded in consistent policy support, robust regulatory frameworks and genuine accessibility for marginalised groups. Poorly designed support, by contrast, entrenches dependency, accelerates overfishing and deepens inequality. As governments worldwide rationalise harmful subsidies under the WTO agreement, the window is open to redirect capital toward instruments that reward stewardship rather than extraction. The fate of 600 million people, and the health of the oceans they depend on, may hinge on whether that redirection happens in time.

Subject of Research: Financial mechanisms supporting livelihoods and sustainable development in coastal and marine fishing communities

Article Title: Global assessment of financial mechanisms supporting blue livelihoods and sustainable development in coastal and marine fishing communities

Article References: Gorain, S., Dutta, S., Thapa, A., Seenivasan, P., & Suresh, A. (2026). Global assessment of financial mechanisms supporting blue livelihoods and sustainable development in coastal and marine fishing communities. Discover Oceans, 3(1), Article 30. https://doi.org/10.1007/s44289-026-00140-6

Image Credits: AI Generated

DOI: 10.1007/s44289-026-00140-6

Keywords: small-scale fisheries, blue economy, microfinance, fisheries subsidies, marine conservation, financial inclusion, climate resilience, sustainable development goals, blue bonds, coastal communities, WTO fisheries agreement, livelihood diversification