What's really under the sea near Taiwan

Taiwan has one of the biggest fishing industries in the world, but the volume of fishing nets discarded in the ocean by its fishing boats has become a big problem. The nets, most of which are gillnets, are made in such a way that fish and other marine life can easily get caught in them with their gills. The nets can become entangled on undersea structures, such as coral. Since fishing nets are cheap, fishermen often just cut them loose and leave them, instead of trying to retrieve them. This not only harms marine life, but also poses a danger to vessels and divers. To tackle the problem, Taiwan has adopted a new law that came into effect on January 1st. It requires fishing boat owners to label nets with their boat's name, and to report the location where their nets were discarded. Otherwise,they will face hefty fines, beginning July 1st. Diver Lin Yu-ping and his diving buddies have been monitoring the problem in the Keelung City coastal areas for years.