I've heard of a ghost fish, but "ghost fishing"? Turns out it doesn't even involve actual fish. ...
After a fishing boat pulls up anchor, the hooks and lines and nets lost or dumped into the ocean stay behind, for years even. Not only is that trash in our oceans, it's a threat to the surrounding marine life.
For instance, the unlucky seabirds that were living around a remote island off the coast of Scotland: They drowned in discarded fishing nets, scientists have pulled hooks and fishing line from their bellies. And it's still happening.
Everyone knows ocean pollution is rotten, but fishing can be pretty dirty too.