The Doors of The RV Endeavor.

Submitted by terry on
One of the fascinating things I’ve noticed on the ship are the doors. The round openings with a cover are called hatches, and the majority of the doors are specialty doors that seal with a system of clamps and gaskets. These specialized doors prevent water from spilling into the boat. Many doors have knee high threshold,s and several of us have already barked our shins. Spatial awareness is an important shipboard skill.
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You Can’t Squeeze Blood from a Stone

Submitted by terry on
Well, ACTUALLY……… Yes, here comes yet another example of science blowing holes in old truisms. While true you can’t squeeze blood from a stone (to my knowledge), it turns out you CAN squeeze or swab DNA from all matter of abiotic features like stones, soil, and water. All things alive (and viruses, which may or may not be “alive” depending on who you ask) contain DNA and whenever they excrete, secrete, shed, or expire, they leave behind cells, which contain their DNA. With recent advances in technology, scientists can collect and concentrate DNA from environmental samples (eDNA) and make inferences about what organisms are (or have been) where.
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Happy Father’s Day from the middle of the Atlantic Ocean!

Submitted by terry on
We are now on transit to our sixth of seven ADEON sites. During the 8:00 shift change, there was a flurry of texting and chatting from the boat to land as both science and crew sent well wishes to fathers back home. We also have 5 very special fathers on the R/V Endeavor crew that received special morning greetings.
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Finding the lander

Submitted by terry on
One of the main concerns when deploying equipment at sea is the question of how to get it back. Once the ADEON landers are deployed, they drop to the bottom, where they rest until it’s time to retrieve and collect the data. With depths ranging from 200 to 900 meters, it can be challenging to recover. So how do we get them back once they are deployed?
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Catching metadata . . . .

Submitted by terry on
Alongside catching really cool animals, we also collect a lot of additional data that provides more information about each animal we catch. “Metadata”, such as GPS coordinates, time of day/night, and sea state are important to consider since some animals may only be present in certain conditions.
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Hello from Madison on the R/V Endeavor!

Submitted by terry on
The weather has been beautiful and in our favor. The water is becoming a little rougher as we make it up the coast. I was definitely feeling it yesterday morning. The sunsets are beautiful and different every day and I always look forward to seeing them. The other day we got to see a small pod of dolphins come along the boat. It was so cool and such a unique experience.
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4am to 4pm with Andrew Heaney!

Submitted by terry on

Hello, this is Andrew Heaney again; I last posted on this blog on June 7th. Quite a lot has happened since then; I have been working on both the day and night shifts, from 4 am to 4 pm. I can’t complain about the work itself nor the schedule. In the night shift, when Joe and the other night shift people deploy their nets, I help with writing down information on a clipboard and basically help everyone in the lab. The most interesting things we see, however, in my personal opinion at least, are the awesome little deep sea critters we catch in the nets!

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Bandwing flyingfish and megalops-stage crab larva - Oh My!!

Submitted by terry on

Hannah Blair Blog 14 June 2018

Hello again from the night shift. We completed our third night of zooplankton towing last night, and while retrieving the net were accompanied by an energetic school of bandwing flyingfish. Turns out they had good reason for their leaping and gliding above the surface of the water: a pod of rough-toothed dolphins emerged from the dark ocean around us, eagerly chasing after flying fish snacks. A couple of the flyingfish stranded themselves on deck, allowing us a closer look.

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Sacrificial Anodes

Submitted by terry on
Another lander was successfully picked up this morning, even with the extra waves at this site. The waves made it a little more difficult for the lander to be retrieved and required more people to help grab the lander from the water and get it on board. As we’ve been prepping the recovered landers for the next deployment, we’ve noticed that a lot of the corrosion on the hardware is just surface corrosion. This tends to come off the bolts and washers with a little water and some scrubbing with wire brushes. To prevent the hardware that is holding on sensors from corroding, we use anodes to protect those components.
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Jennifer L. Miksis-Olds, PhD.

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