International Day for the Fight against Illegal, Unreported and Unregulated Fishing is celebrated on June 5 every year. The day was proclaimed by the United Nations General Assembly in 2017 to raise awareness of the problem of illegal, unreported and unregulated (IUU) fishing.
IUU fishing is a major threat to global fish stocks and the marine environment. It is estimated that IUU fishing costs the global economy up to $23 billion per year. IUU fishing can also lead to overfishing, habitat destruction, and the loss of biodiversity.