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Greetings from the microbe group! We have collected a total of 11 cores during this cruise so far, and we are currently retrieving more! We have been primarily using the gravity corer but will be switching to the piston core which can penetrate much further into the sediment, up to 9 meters. As you go deeper into the sediment, the chemical compounds that microbes use change based on what is available. At the water-sediment interface, oxygen is available for microbes to use. However, as you go deeper into the sediment and oxygen is no longer available, other compounds like nitrate, iron, and sulfate are used by these microbes. I celebrated my birthday on the ship a couple days ago and the support from the crew and scientists was wonderful! They put decorations on my bedroom door, decorated the galley, and made a cake AND cupcakes. I also was able to hold my first sea pig the other day and all of this made it a birthday I’ll remember for the rest of my life! I was talking with a friend, Dr. Candace Grimes (www.seagrimes.com), and it turns out she celebrated her birthday on this ship a few years ago! She has also sailed with Dr. Sarah Gerken and Dr. Kevin Kocot, which reminds me of how connected our profession is, even when we’re in very different research concentrations. Dr. Katie Howe University of South Alabama
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