Today is November 21, 2009
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Life in the Extreme: Deep-sea hydrothermal vents and other ecologically challenging marine environments
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Event Date(s):
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Event has passed
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| Department: |
CAS Friday Seminar |
| Category: |
Seminars |
| Details: |
Alissa J. Arp, Professor of Biology & Dean of the College of Arts and Sciences, Southern Oregon University presents
Vast populations of worms, clams and other invertebrate animals inhabit a variety of marine habitats where they are exposed to the energy rich, but highly toxic hydrogen sulfide. In deep-sea hydrothermal vents, large colonies of the giant tube worms Riftia pachyptila survive off the chemical-based metabolism of their symbiotic bacteria. The cold seeps habitat on the sea floor of the Gulf of Mexico is home to expansive beds of mussels congregating around naturally seeping pools of sulfide, methane and hypersaline brine, and polychaete worms colonize mounds of frozen methane. In our own backyard, the echiuran worm, Urechis caupo, is exposed to toxic sulfide in estuarine mudflats during low tides, yet flourishes through protective physiological adaptations in the skin and internal tissues. The ecology of these habitats, animal adaptation strategies, as well as deep sea collection techniques and experimental methodology will be discussed.
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| Starts: |
3:00 PM |
Building:
Room #: |
Science Building
SC 118
1250 Siskiyou Blvd
Ashland, OR 97520
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| Contact: |
Colleen Martin-Low
by phone at 552-6808
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