Plastic pollution of all sizes poses a grave threat to seafood producers around the world. Abandoned fishing equipment entangles marine life, including fish and seabirds, often killing them. Derelict lines and nets get caught in gear, boat propellers and other equipment, damaging them. Tiny bits of foam packaging and plastic microfibers from textile manufacturing are ingested by fish.
The macro plastics, such as lost gear and bags, can come from fishing boats or from land-based sources, washed into the oceans during storms. But in some ways, the tiny plastics invisible to the naked eye are a greater danger. Only a tiny fraction of plastic pollution floats, and an unknown amount ends up in the bellies of fish.