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SUMMARY:Hot water in a cold ocean – hydrothermal ecosystems in the South
 ern Ocean - Katrin Linse (British Antarctic Survey)
DTSTART:20140807T120000Z
DTEND:20140807T123000Z
UID:TALK51575@talks.cam.ac.uk
CONTACT:Dr Dan Jones
DESCRIPTION:\nHydrothermal ecosystems exist where geothermally heated wate
 r exits the Earth’s crust\, often near volcanically active places. In 19
 77 the first marine hydrothermal black smoking vents were discovered in th
 e Galápagos Rift hosting remarkable oases of giant tube worms\, large cla
 ms and mussels as well as sulphide and mineral deposits. More than thirty 
 years later\, during the NERC ChEsSO consortium cruise JR224 in 2009\, the
  first black smokers were found and filmed on the East Scotia Ridge segmen
 t E2 and investigated on following expeditions with ROV Isis on RRS James 
 Cook. A new and so far unique ecosystem and biogeographic region was disco
 vered.  The talk today will summarise the present biological and geochemic
 al results of the ChEsSO investigations\, review the current knowledge on 
 Southern Ocean hydrothermal active locations and touch on future challenge
 s for these ecosystems\, including conservation of biological diversity an
 d deep sea mining.
LOCATION:British Antarctic Survey\, conference room
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