Small-scale fisheries play a significant but overlooked role in global fisheries production and are key to addressing hunger and malnutrition while supporting livelihoods around the world, according to research featured on the cover of Nature. The data and methodology for this paper were produced within the framework of the Illuminating Hidden Harvests initiative conducted by the Food and Agriculture Organization of the United Nations, Duke University, and WorldFish.

We provide the first global assessment of the status of preferential access areas (PAAs), a relatively understudied policy tool to govern small-scale fisheries. We find 44 countries, most of them of low or low-middle income, have established a total of 63 PAAs encompassing 3% of continental shelf area worldwide.

Fishing fleets and effort have grown throughout the waters of lower-income coastal countries in recent decades, much of which is carried out by vessels registered in higher-income countries. Fisheries access arrangements underpin this key trend in ocean fisheries and have their origins in United Nations Convention on the Law of the Sea's (UNCLOS’s) goal to establish resource ownership as a mechanism to increase benefits to newly independent coastal and island states.

This document has been adapted from the research protocol used to compile country case study data and to produce the results summarized in the 2023 report Illuminating Hidden Harvests: The Contributions of Small-Scale Fisheries to Sustainable Development, coproduced by FAO, Duke University, and WorldFish.

Fishing for subsistence constitutes a livelihood safety net for poverty, malnutrition, and gender inequality for populations dependent upon aquatic foods around the world. Here, the authors provide global estimates showing that almost the same amount of small-scale fishers (52.8 million people) engage in subsistence fishing at some point during the year as in commercial employment (60.2 million people). The authors also use subsistence estimates from 14 country cases studies conducted as part of the Illuminating Hidden Harvests study to measure small-scale fisheries’ livelihood safety net function.

The global Illuminating Hidden Harvests study contributes to a more holistic understanding of what small-scale fisheries are, their importance, and why they are essential to efforts to achieve the United Nations Sustainable Development Goals. By using this knowledge wisely within a human rights-based approach in line with the Small-Scale Fisheries Guidelines, and by empowering small-scale fishers and fishworkers, a more inclusive, equitable, sustainable, and resilient small-scale scale fisheries subsector can be achieved.

Aquatic foods are critical for food and nutrition security in Malawi, but it is unclear which populations benefit from different aquatic foods and what factors shape food access. Spatial analysis of food flows across value chains from Lake Malawi to domestic consumers shows that usipa (Engraulicypris sardella) reaches more consumers than chambo (Oreochromis karongae) across all Malawi districts. Spatial analysis of food flows can guide policy makers toward supporting fisheries that reach vulnerable populations and designing interventions that enhance physical and economic access to fish.

Poverty and food insecurity persist in sub-Saharan Africa. The authors conducted a secondary analysis of nationally representative data from Malawi, Tanzania, and Uganda to investigate how both proximity to and engagement with small-scale fisheries are associated with household poverty and food insecurity. Results suggest that households engaged in small-scale fisheries were less likely to be poor than households engaged only in agriculture. Households living in proximity to small-scale fisheries were more likely to achieve adequate food security and were less likely to be income poor, compared to the most distant households.

Large-scale fishing effort in the waters of tropical and lower income countries is predominantly driven by ‘distant water fishing fleets’ often owned by companies based in a small number of countries and has been associated with a range of negative environmental and social outcomes. West Africa is an example where such fleets are a dominant feature. In the waters of Guinea-Bissau, Guinea, Sierra Leone, Liberia and Ghana, 75% of all licensed bottom trawl vessels in 2017 either registered (‘flagged’) or largely owned in China.

Over the last two decades, efforts to combat illegal, unreported, and unregulated (IUU) fishing have led to an expansion of initiatives to enhance transparency across the seafood industry through international agreements, national government regulations, and voluntary private initiatives. Understanding of the effects of these initiatives remains limited, and approaches contested among stakeholders.