Dark Life II
Expedition to Study Subseafloor Life at Deep-Sea Vents
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Another First

Posted by Jen Barone 
· Thursday, November 6th, 2014 
vent sid

Atlantis deck crew members deploy the Vent-SID for the first time ever.

After Alvin‘s successful first dive of the trip yesterday, today brought the first deployment ever of a brand new robotic tool called the Vent-SID. It will allow scientists on board to determine the metabolic activity of microbes—such as how quickly they use up certain substances—in their natural environment on the seafloor.

The Vent-SID is on its way to the bottom now. During Alvin‘s next dive, the sub will locate the Vent-SID on the seafloor, move it into position, and trigger the start of sampling. Since the tool has never been used at sea before, we’re eager to find out how its first test-run goes.

Alvin made another productive dive today, with pilot Bruce Strickrott, microbiologist Katie Scott, and pilot-in-training Jefferson Grau. They collected more vent fluids and tube worms.

chimney grab

Alvin scoops a chimney sample from P-vent, a black smoker. (courtesy chief scientist Stefan Sievert, ©WHOI)

While Alvin and its crew were on the bottom, the science team met to review yesterday’s dive. Stefan Sievert presented images of the site where the Vent-SID will take samples, the spot where giant tube worms were collected, and the black smoker from which chimney samples were taken.

Today’s dive went smoothly despite some squally weather that dumped rain on the Atlantis throughout the day. The captain shared a satellite image of the culprit: tropical weather system Invest 96E.

The cause of our rainy day: Invest 96E. (NOAA/GOES)

The cause of our rainy day: Invest 96E. (NOAA/GOES)

But the Alvin recovery team worked gamely through the rain and got the sub back aboard safely. To keep the crew and the sub’s sensitive electronics dry, Alvin backed into its hangar with the hatch closed.

 

alvin backs up

Alvin backs into its hangar after a successful recovery in the rain.

About this expedition

From April 24 – May 14, 2017, a team of scientists, technicians, and engineers from different research institutions will use the deep-sea submersible Alvin to obtain new insights into the functioning of deep-sea hydrothermal vent ecosystems. Read more »

Participants »

About the 2014 Expedition

From November 2 – 26, 2014, a team of scientists, technicians, and engineers from 11 different research institutions will use the deep-sea submersible Alvin to obtain new insights into the functioning of deep-sea hydrothermal vent ecosystems. More »

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Funding

nsfThe Dark Life expedition is a collaborative effort funded by the National Science Foundation.

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Learn more

Dive & Discover: Dark Life at Deep-Sea Vents

Oceanus article on Jesse McNichol’s work (previous graduate student in Sievert Lab)

The SID family of instruments

The history of the SID

Stefan Sievert’s Lab

Jeremy Rich’s Lab

Horst Felbeck’s Lab

Thomas Schweder’s Lab

 

 

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