23 dives! Jiaolong makes its first dive in the Atlantic Ocean, setting a new record of nine dives in nine days


The Chinese manned submersible "Jiaolong", which carried out diving operations in the Atlantic Ocean for the first time, has completed 23 dives in the South Atlantic Ocean and set a new record of nine dives in nine days.

  The Chinese manned submersible "Jiaolong", which carried out diving operations in the Atlantic Ocean for the first time, has completed 23 dives in the South Atlantic Ocean and set a new record of nine dives in nine days.
  The reporter learned from the China Ocean Affairs Administration on the 27th that the first leg of the China Ocean Voyage 83 carried out by the "Deep Sea One" focused on the hydrothermal area of ​​the South Atlantic Mid-Atlantic Ridge. As of February 23, the "Jiaolong" successfully completed 23 dives in the South Atlantic Ocean and set a new record of nine dives in nine days. At present, the "Jiaolong" is in good technical condition. It has carried out detailed investigations and efficient operations in many hydrothermal areas with complex environments such as Tongguan and Xunmei, and obtained about 300 geological and biological samples and about 4TB of environmental and video data. The
  China Ocean Voyage 83 is the first time that a Chinese manned submersible has carried out diving operations in the Atlantic Ocean. It is also the first time that the "Jiaolong" and its supporting mother ship "Deep Sea One" have carried out deep-sea investigations and research in the Atlantic Ocean. This section of the voyage was the first to conduct manned deep-diving detailed surveys in multiple hydrothermal areas in the South Atlantic, such as Tongguan and Xunmei. Typical biological groups in hydrothermal areas such as blind shrimps and mussels were obtained, preliminarily confirming that the hydrothermal community in the South Atlantic is highly similar to that in the North Atlantic, and extending the southern boundary of the Atlantic hydrothermal biota 1,300 kilometers southward (from 15°S to 27°S).
  During this section of the voyage, a survey of the South Atlantic seamount ecosystem was carried out, and multiple high-value biodiversity areas such as coral forests and sponge lands were initially discovered, providing scientific support for identifying biodiversity hotspots in the South Atlantic. The results achieved in this section have filled the gap in the biodiversity survey in the South Atlantic, enriched the understanding of global deep-sea biodiversity, and will effectively support the study of the formation mechanism of the global deep-sea biogeographic distribution pattern, helping humans to better understand, protect, and utilize the deep sea.
  China Ocean Expedition 83 set sail from Qingdao on December 17 last year. During the Spring Festival, 60 scientific expedition team members followed the "Deep Sea One" ship in the South Atlantic thousands of miles away, accompanied by the country's most important manned submersible "Jiaolong", and spent a special holiday.