POROS, Greece (AP) — There are ghosts in the ocean. Silent killers carried by the currents, wrapping themselves around reefs and claiming the lives of millions of marine creatures great and small, from sponges and tiny crustaceans to dolphins, sharks and whales. In their former lives, these ghosts were nets and other fishing gear essential to the livelihoods of millions around the world, and put food on the plates of millions more. But once lost, abandoned or discarded into the sea, these nets continue doing what they were designed to do: catch fish. Mostly made of strong plastic such as nylon, this lost gear known as ghost nets doesn't easily decompose.
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