Bia Mattiuzzo, an oceanographer, and her husband Lucas founded Marulho on Ilha Grande to combat the issue of ghost fishing nets by clearing them from the ocean and upcycling them into bags. They involve local fishermen in the collection and cleaning process, providing employment and raising environmental awareness. Marulho has removed 5.5 tonnes of nets, contributed over 500,000 Brazilian Reals to the local economy, and produced 40,000 eco-friendly products, emphasizing social and environmental benefits over financial gain.