[SEMCO] Dr. Stefan Sievert of WHOI @ CCMNH

[Teresa Izzo]

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PRESS RELEASE

FOR IMMEDIATE 
RELEASE 
FOR MORE INFORMATION, CONTACT:
July 21, 
2015 
Teresa Izzo
   508-896-3867 ext. 137
tizzo at ccmnh.org

The Cape Cod Museum of Natural History presents
Dr. Stefan Sievert of the Woods Hole Oceanographic Institution
Oases in the Deep – The Fascinating World of Deep-Sea Hydrothermal Vents
.

BREWSTER, MA ­The Cape Cod Museum of Natural 
History in Brewster presents Dr. Stefan Sievert 
Associate Scientist in the Biology Department at 
Woods Hole Oceanographic Institution Thursday, August 20, 2015 at 1pm.

The deep-sea is the largest contiguous biome on 
Earth and is home to a large number of highly 
diversified organisms, yet is still only poorly 
explored. The majority of the organisms in the 
deep-sea are dependent on food that is produced 
through photosynthesis in the sunlit surface 
ocean, and thus is directly dependent on solar 
energy. This leads to a shortage of food in the 
deep-ocean, as only a small percentage of the 
material produced in the surface ocean sinks to 
the abyss. However, hot springs found in 
tectonically active regions of the deep-ocean 
represent a spectacular exception to this general 
trend. In total darkness, these hot springs or 
deep-sea hydrothermal vents, as they are more 
commonly known, support unique and fascinating 
ecosystems that are characterized by high 
productivity - oases in an otherwise barren 
landscape. At deep-sea vents, microorganisms 
survive on inorganic chemicals that bubble up 
from beneath the ocean floor. Using a process 
called chemosynthesis, the microbes convert those 
chemicals into energy to make a living. Those 
microbes form the base of the food chain at 
deep-sea vents, just like algae do in the surface ocean or plants do on land.

These microbes are the subjects of Dr. Sievert’s 
investigations and he will take the audience on a 
journey to give us a glimpse into a strange world 
at the bottom of the ocean. Dr. Sievert has been 
on a number of research cruises to deep-sea 
hydrothermal vents, including several cruises on 
R/V Atlantis as chief scientist.

The presentation will be held at the Museum Thursday, August 20th at 1pm.

Free with Museum Admission ~ For information 
please call: 508-896-3867, ext. 133
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Teresa Izzo
Program Coordinator
Cape Cod Museum of Natural History
869 Main St./Rte. 6A
Brewster, MA 02631
508-896-3867 x137
508-896-8844 - fax 
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