“Steven D'Hondt”的意思、由来-开放百科全书

Steven D’Hondt is an American geomicrobiologist who studies microbial communities living beneath the seafloor. He is a professor of oceanography at the University of Rhode Island.

Career

D’Hondt earned his BS in Geology at Stanford University in 1984 and his PhD in Geological and Geophysical Sciences at Princeton University in 1990. He became an assistant professor in the Graduate School of Oceanography at the University of Rhode Island in 1989, where he remains today.

D’Hondt’s research program investigates marine microorganisms in subseafloor sediments, with projects looking at the global distribution of cells, the energetics of subseafloor communities, ancient sedimentary DNA, and the acidification of estuaries due to human impact.^[1] In a 2009 study, his group examined sediments from below the South Pacific Gyre, an area of ocean between Australia and South America where little organic matter falls to the seafloor.^[2]^[3]^[4] They discovered very low numbers of microbial cells and the presence of oxygen several meters down. Sediments with greater numbers of microbes lack oxygen at these depths. In a 2015 study, D’Hondt led a research group that demonstrated that oxygen penetrates the entire sediment column in as much as one third of the world’s oceans.^[5]^[6]^[7] This oxygen likely affects microbial metabolism in these sediments and may be transported into the underlying mantle.

D’Hondt led the Subsurface Biospheres team of the NASA Astrobiology Institute from 2001 to 2006.^[8] He also has been involved with the international scientific drilling community. He was co-chief scientist of the Ocean Drilling Program Leg 201 and the Integrated Ocean Drilling Program Expedition 329, the first and second ocean drilling expeditions to focus primarily on life beneath the seafloor.^[8]^[9] D’Hondt is a member of the Deep Life Scientific Steering Committee for the Deep Carbon Observatory and a member of the American Geophysical Union, Geochemical Society and Society for Applied Microbiology.^[10]^[9]

Personal life

Selected publications

D'Hondt has 75 publications with over 6,000 citations and an h-index of 42. Among the more highly cited are:^[12]

References

1. ^{{Cite web|url=http://www.gso.uri.edu/dhondtlab/Current_Research.html|title=Current Research|website=The D'Hondt lab|language=en|publisher=University of Rhode Island|access-date=1 September 2017}}
2. ^{{cite news|last1=Associated Press|title=Anybody home? Little response in Pacific gyre|url=http://www.nbcnews.com/id/31491683/ns/technology_and_science-science/t/anybody-home-little-response-pacific-gyre/#.Wal39a3n8xN|accessdate=1 September 2017|agency=NBC News|date=22 June 2009|language=en}}
3. ^{{Cite journal|last=D'Hondt|first=Steven|last2=Spivack|first2=Arthur J.|last3=Pockalny|first3=Robert|last4=Ferdelman|first4=Timothy G.|last5=Fischer|first5=Jan P.|last6=Kallmeyer|first6=Jens|last7=Abrams|first7=Lewis J.|last8=Smith|first8=David C.|last9=Graham|first9=Dennis|date=2009-07-14|title=Subseafloor sedimentary life in the South Pacific Gyre|url=http://www.pnas.org/content/106/28/11651.full|journal=Proceedings of the National Academy of Sciences|language=en|volume=106|issue=28|pages=11651–11656|doi=10.1073/pnas.0811793106|pmid=19561304|issn=0027-8424|pmc=2702254}}
4. ^{{cite news|last1=Wright|first1=Matthew E.|last2=Otomo|first2=Miyuki|title=Exploring An Ocean Desert: Scientists Study Life in the Remote South Pacific Gyre|url=http://oceanleadership.org/exploring-an-ocean-desert-scientists-study-life-in-the-remote-south-pacific-gyre/|accessdate=1 September 2017|work=Consortium for Ocean Leadership|date=18 August 2011}}
5. ^{{Cite journal|last=D’Hondt|first=Steven|last2=Inagaki|first2=Fumio|last3=Zarikian|first3=Carlos Alvarez|last4=Abrams|first4=Lewis J.|last5=Dubois|first5=Nathalie|last6=Engelhardt|first6=Tim|last7=Evans|first7=Helen|last8=Ferdelman|first8=Timothy|last9=Gribsholt|first9=Britta|date=April 2015|title=Presence of oxygen and aerobic communities from sea floor to basement in deep-sea sediments|url=http://www.nature.com/ngeo/journal/v8/n4/abs/ngeo2387.html|journal=Nature Geoscience|language=en|volume=8|issue=4|pages=299–304|doi=10.1038/ngeo2387|issn=1752-0894}}
6. ^{{cite news|last1=Boston|first1=Michelle|title=Researchers investigate the ocean's deep biosphere|url=https://phys.org/news/2017-04-ocean-deep-biosphere.html|agency=Phys.org|date=24 April 2017}}
7. ^{{cite news|title=No limit to life in deep sediment of ocean's "deadest" region {{!}} NSF - National Science Foundation|url=https://www.nsf.gov/news/news_summ.jsp?cntn_id=134420|accessdate=1 September 2017|work=News Release|publisher=National Science Foundation|date=15 March 2015|language=en}}
8. ^{{Cite news|url=http://usoceandiscovery.org/past-distinguished-lecturers-old/2011-2012-distinguished-lecturer-steven-dhondt/|title=2011-2012 Distinguished Lecturer - Steven D'Hondt - U.S. Science Support Program|work=U.S. Science Support Program|access-date=2017-08-02|language=en-US}}
9. ^¹²{{Cite web|url=http://elections.agu.org/files/2014/05/Dhondt-CV.pdf|title=Curriculum Vitae|last=|first=|date=|website=AGU|archive-url=|archive-date=|dead-url=|access-date=August 2, 2017}}
10. ^{{cite web|title=DCO Scientific Steering Committees|url=https://deepcarbon.net/page/dco-scientific-steering-committees|website=Deep Carbon Observatory|accessdate=1 September 2017|language=en}}
11. ^{{cite web |url=http://sos.ri.gov/about-us |title=About Secretary Of State Nellie M. Gorbea |publisher=Rhode Island Department of State |accessdate=December 30, 2017 }}
12. ^{{cite web|title=Steven D'Hondt -|url=https://scholar.google.com/citations?user=n57iAiYAAAAJ&hl=en|website=Google Scholar Citations|accessdate=1 September 2017}}