Editing Challenger Deep (section)

===2017 – RV ''Tansuo-1''===
CAS' Institute of Deep-sea Science and Engineering sponsored ''Tansuo-1''{{'s}} return to the Challenger Deep 20 January – 5 February 2017 (cruise TS03) with baited traps for the capture of fish and other macrobiology near the Challenger and Sirena Deeps. On 29 January they recovered photography and samples of a new species of snailfish from the Northern slope of the Challenger Deep at {{convert|7581|m|ft|0}}, newly designated ''Pseudoliparis swirei''.<ref name="Gerringer et al 2017">{{cite journal |url=https://biotaxa.org/Zootaxa/article/view/zootaxa.4358.1.7 |last1=Gerringer |first1=M. E. |last2=Linley |first2=T. D. |last3=Jamieson |first3=A. J. |last4=Goetze |first4=E. |last5=Drazen |first5=J. C. |year=2017 |title=Pseudoliparis swirei sp. nov.: A newly-discovered hadal snailfish (Scorpaeniformes: Liparidae) from the Mariana Trench |journal=Zootaxa |volume=4358 |issue=1 |pages=161–177 |doi=10.11646/zootaxa.4358.1.7 |pmid=29245485 |doi-access=free |access-date=2 December 2019 |archive-date=11 February 2020 |archive-url=https://web.archive.org/web/20200211022650/https://www.biotaxa.org/Zootaxa/article/view/zootaxa.4358.1.7 |url-status=live }}</ref> They also placed four or more CTD casts into the ''central'' and ''eastern'' basins of the Challenger Deep, as part of the World Ocean Circulation Experiment (WOCE).<ref>{{cite journal|title = Seasonal variability of water characteristics in the Challenger Deep observed by four cruises |author1=Caijing Huang |author2=Qiang Xie |author3=Dongxiao Wang |author4=Yeqiang Shu |author5=Hongzhou Xu |author6=Jingen Xiao |author7=Tingting Zu |author8=Tong Long |author9=Tiecheng Zhang |display-authors=6 |journal=Scientific Reports |volume=8 |number=11791 |year=2018|page = 11791 |doi = 10.1038/s41598-018-30176-4 |pmid = 30087355 |pmc = 6081482 |bibcode = 2018NatSR...811791H |s2cid = 51935374 }}</ref>