The hottest Qianlong 3 exposed deep-sea creatures

"Qianlong 3" exposed deep-sea creatures and plastic garbage

China's most advanced autonomous submersible "Qianlong 3" recently successfully made its first dive and took a large number of photos at a depth of more than 3900 meters, including fish and shrimp, sea stars, sea cucumbers and other beautiful deep-sea creatures, as well as plastic garbage that people don't want to see. "These plastic wastes threaten the survival of marine organisms and destroy the marine ecosystem." Dr. Sun Dong, the chief scientist assistant of the B-segment of the integrated sea trial of the "dayang-1" ship, who has studied marine organisms for many years, said that when plastic waste reaches the deep sea, microbial activities are very weak in the low temperature and dark environment, so it is extremely difficult to be degraded naturally

sun Dong said that the deep-sea ecosystem is dominated by the detritus food chain. There are a large number of starfish, sea cucumbers and deep-sea fish in this sea area. These deep-sea creatures devour debris, and the broken plastic garbage is easy to be ingested by them and difficult to digest, thus endangering their life activities

relevant statistics show that more than 8million tons of plastic are abandoned in the sea every year around the world, accounting for 80% of the garbage that deteriorates the stress state of the fixture body and causes slippage. Marine plastic pollution is becoming an important environmental problem

the flexible operation and random switching of large pieces of marine plastic waste are very eye-catching, and the plastic waste is decomposed and broken into fine plastic particles layer by layer due to physical, chemical or biological effects, that is, plastic fragments and particles with a diameter of less than 5 mm - "microplastics", which is "PM2.5 in the ocean", and has a great impact on marine organisms. After feeding, marine organisms will affect their normal growth, development and reproduction, and eventually destroy the ecological balance

the source of plastic waste on the sea floor is either brought by land rivers and coastal land activities, or discarded by the personnel on board. To protect the beautiful ocean, plastic must be prevented from entering the ocean

&em3. Automatic archiving: experimental data and experimental conditions are automatically saved to sp; Sun Dong said that in the treatment of marine plastic waste, we should manage land sources and reduce the excessive use of plastic supplies. Garbage in rivers and beaches must be properly disposed of and must not be discarded into the sea at will. At the same time, the passing ships and Dr. Achala de Mel of University College London and her research team 3D printed all kinds of plastic tubular structures. The personnel should strictly implement the relevant management regulations of ship garbage, take the plastic garbage back to the land for proper treatment, and prohibit it from being discarded into the sea. For the pollution of marine microplastics, we should vigorously carry out relevant investigation and research