The video, which includes footage taken aboard a purse-seine vessel last year, shows the impact of using Fish Aggregating Devices (FADs) . (Warning: the video is a bit gory.) This floating gear attract a range of species, not just tuna, to the surface. As a result, the vessels end up hauling in and killing manta rays, whale sharks and other species.

In less than a month the Western and Central Pacific Fisheries Commission will meet and discuss what conservation measures it should take for a range of marine species.

“Consumers have the right to know what is destroyed and discarded in order to fill their cans with tuna,” said Sari Tolvanen, a Greenpeace International oceans campaigner. “This shocking video is a wake-up call: we as consumers, can demand that retailers give shelf-space only to responsibly-caught tuna. Without significant changes to global fishing practices and more protected marine reserves across the world’s seas, we will literally fish away future tuna supplies, jobs and healthy oceans.”

Read the complete story from The Washington Post.