UK supermarkets Marks & Spencer and Waitrose joined the Global Ghost Gear Initiative (GGGI) to help tackle the issue of lost and abandoned fishing gear in the world's oceans.

The group includes members from the fishing industry, seafood companies, NGOs and governments, including the UK.

Ghost fishing gear, such as abandoned and lost nets, pots and lines, represents more than 70 percent of all the floating macroplastics (larger than 5mm) in the ocean and causes the deaths of than one hundred thousand whales, dolphins, seals and turtles every year through entanglement, according to GGGI.