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Brown: Gas-tight sampling at T&S
Spires |
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Science News | ||||
NOAA Ship Ron Brown - ROV Cruise ![]() ROPOS dive 626 collected scanning sonar data over the CASM hydrothermal vent field today. These data will be processed on board the ship over the next day or two in order to create a high-resolution (2-m pixel size) bathymetric map of the area. Over the last several years we have used this same sonar to make detailed maps of our main working areas at Axial. The sonar maps help us put the near-bottom views from the ROPOS video cameras into a larger and more meaningful context. The map of CASM will be used when ROPOS returns to the site in a few days. More... |
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R/V Wecoma - CTD Cruise
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Teacher Logbooks | ||||
NOAA Ship Ron Brown - Jeff Goodrich
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R/V Wecoma - Missy Holzer
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Jeff G: What project are you working on at Axial Volcano? Jeff
E: I'm working with bacterial traps, which are 3 little PVC pipes
filled with glass wool with nytex screens on either side to keep out larger
organisms that eat bacteria. The idea is to place the bacterial traps
on top of a hydrothermal vent for short term (1-2 week) and long term
(1-2 year) studies. We'll come back and collect the samples and freeze
them on the ship. Once we get to land we start the process of extracting
DNA. We acquire the DNA signature through a method called TRFLP (Terminal
Restriction Fragmental-length Polymorphism). It's relatively new - so
good, clean methods haven't been developed yet. That's what I'm working
on. |
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