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Traditional underwater garbage salvage scheme

Marine garbage is any man-made object or treated solid matter that exists in the ocean or coastal areas for a long time. There are many sources of marine garbage, including land-based sources and sea-based sources. In some specific marine activities, such as fishing, freight, entertainment and passenger transport, a considerable amount of marine garbage will be produced. Among them, sources based on marine activities, such as abandoned fishing nets, wires, ropes and plastic bags, are likely to exist on the seabed, seawater and sea surface. These rubbish can also be transported to other places with ocean currents or sea breeze, so it can also be seen on the beach and along the coast.

Marine debris can harm or kill humans and other creatures by entanglement and swallowing. Animals may be hungry or malnourished because they accidentally eat plastic bags that look like food. Abandoned fishing nets can continue to capture a large number of animals, leading to the death of the captured animals. Ships may also be damaged by floating objects, resulting in considerable repair costs. Therefore, people now realize that marine debris is one of the main marine pollutants, which will damage the ecological, economic and cultural values of the ocean and coastal areas.

Provide correct suggestions on how to reduce the amount of marine garbage at the source, which will also help to better understand the management regulations and practical principles of environmentally friendly behavior based on marine activities.