International Day for the Fight against Illegal, Unreported and Unregulated Fishing

International Day for the Fight against Illegal, Unreported and Unregulated Fishing is observed every year on June 5. In 2026, this date falls on a Friday. It is a United Nations observance focused on illegal, unreported, and unregulated fishing, often shortened to IUU fishing. The day draws attention to fishing activities that operate outside national, regional, or international rules and weaken efforts to manage fish stocks responsibly. It is an awareness-based observance with a practical message: sustainable fisheries depend on law, transparency, cooperation, and informed choices throughout the seafood supply chain. ^{1 2}

See also: National Women’s Fly Fishing Day, International Blessings of The Fishing Fleet Day

History of International Day for the Fight against Illegal, Unreported and Unregulated Fishing

The observance grew out of international work led through the Food and Agriculture Organization of the United Nations. In 2015, the General Fisheries Commission for the Mediterranean proposed creating an international day to raise awareness of the fight against IUU fishing, and the proposal was later endorsed by the FAO Committee on Fisheries. The United Nations General Assembly declared June 5 as the International Day for the Fight against Illegal, Unreported and Unregulated Fishing in 2017. The date was chosen because the Port State Measures Agreement entered into force on June 5, 2016, becoming the first binding international agreement aimed specifically at preventing, deterring, and eliminating IUU fishing.

The first observance took place on June 5, 2018. Today, the day is connected with broader efforts to protect oceans, support responsible fisheries, and strengthen the systems that keep illegally caught seafood from entering markets. IUU fishing can include fishing without authorization, misreporting catches, fishing in prohibited areas, or taking protected species. The observance keeps attention on a problem that affects marine ecosystems, coastal communities, legal fishers, food security, and international cooperation.

Why is International Day for the Fight against Illegal, Unreported and Unregulated Fishing important?

IUU fishing matters because it weakens the rules designed to keep fisheries productive over time. When vessels ignore catch limits, hide their activity, or fish where they are not allowed, fish stocks can be depleted faster than managers can respond. That creates unfair competition for fishers who follow the law and report their catches honestly. It also makes seafood supply chains harder to trust, especially when illegally caught fish are mixed with legal products before reaching consumers.

The issue is also tied to livelihoods and food security. Fisheries and aquaculture support nutrition, income, and employment for millions of people, particularly in coastal and island communities. IUU fishing can reduce local access to fish, damage habitats, and shift economic benefits away from people who depend on well-managed waters. In some cases, illegal fishing activity is also linked with unsafe labor practices, abuse, and wider criminal networks, making the fight against it a matter of both environmental and human responsibility.

• It supports healthier fish stocks and marine ecosystems.
• It protects honest fishers from unfair competition.
• It strengthens trust in seafood supply chains.
• It helps coastal communities defend food and income.
• It connects ocean protection with law, labor, and trade.

How to Observe International Day for the Fight against Illegal, Unreported and Unregulated Fishing

Learn what IUU fishing means before buying or discussing seafood. Check whether seafood sellers provide clear information about species, origin, and harvesting method, and choose businesses that take traceability seriously. Read about port inspections, catch documentation, and the role of international agreements in keeping illegal catches out of markets. For schools, libraries, and community groups, the day works well for lessons on ocean governance, food systems, and the everyday consequences of weak enforcement.

Share accurate information about the issue without treating it as only a distant ocean problem. Coastal communities, fish workers, regulators, retailers, and consumers all have a stake in well-managed fisheries. People can use the day to ask better questions about seafood, support responsible fishing policies, or follow updates from organizations working on fisheries monitoring and enforcement. A thoughtful observance should keep the focus on practical solutions, including transparency, cooperation, and respect for the people who depend on lawful fishing.

• Look up what IUU fishing includes and why it happens.
• Ask seafood sellers about traceability and sourcing.
• Choose seafood from responsible and transparent suppliers.
• Share an educational post about sustainable fisheries.
• Support policies that improve monitoring and enforcement.

International Day for the Fight against Illegal, Unreported and Unregulated Fishing Dates

1. https://www.fao.org/iuu-fishing/background/international-day-against-iuu-fishing/en/[↩]
2. https://www.fao.org/iuu-fishing/fight-iuu-fishing/en/[↩]