American movie star Leonardo DiCaprio unveiled today a free technology that allows users to spy on global fishing practices, in a bid to curb illegal activity in the oceans and rebuild imperiled fish stocks.

The technology, known as Global Fishing Watch, was officially released to the public during the Our Oceans Conference hosted by US Secretary of State John Kerry in Washington today and tomorrow.

“Today, this unprecedented technology is available to everyone in the world. I encourage everyone to go check it out,” DiCaprio told the conference.

‘This platform will empower citizens across the globe to become powerful advocates for our oceans.’