After completing our event in Baton Rouge we made our way to Morgan City, where we met several workers at the Oceaneering facility. For many years, Oceaneering has centered its ROV work in the Gulf of Mexico, laying pipelines for oil rigs. However, due to a dying industry, they have shifted their energy towards research endeavors. We will be working alongside oceaneering workers, scientists and LUMCON’s director- no pressure! The Mississippi Canyon is a region located wtihn the Gulf of Mexico-where the Deep Water Horizon tragedy occurred only several years ago. The mission of our ROV cruise is focused on deep-sea biodiversity. We will explore many sites, including the Deep Water Horizon region and several other shipwrecks. In addition to ROV footage and collection, our scientists onboard will be conducting several “woodfall” stations using a basket rigged to our side winch (see top description).
Our first day in transit set the tone for the rest of our cruise- full of problems and excitement! We spent a majority of the first day refueling and rewatering, while also fixing and ordering a port navigation light that went out during the night. During our cruise, we deployed both the ROV and a steel basket filled with logs off our side winch. However, the memo that we would be using a basket did not make it up the chain of command, and many crew members found themselves dumbfounded and flustered by the event. Because Oceaneering made our floating tether for our basket too long, we spent a majority of our trip retooling a method for disconnecting and reconnecting the basket at the bottom. The idea is to deploy the basket and ROV to the bottom with transducers on the basket, ROV and site mooring. The mooring will be dropped at our log location and the ROV then must open the basket with a robotic arm and insert logs into the sediment for later recovery. The mooring will stay down below for later return.
In short, the basket caused much more trouble before it became better. Deploying both a basket and ROV off our boat- which is not a DP vessel- is very dangerous as wires can become tangled in our wheels. Because of this, the Captain held position manually our whole trip. After a few days of refitting, and very very long nights, we found several issues wrong with our side winch. Our side winch has not been used this deep (2000m+) in a very long time. While deploying our basket, our chief engineer found several kinks at 1800m of line. We had to immediately pull and address the winch issue, which could not be fixed. Luckily, we reterminated our basket wire and fitted it to our other side winch- which worked swimmingly! Posted below is a photo of the infamous basket! Which I may add a small ancetdote- we found a lizard in there! The lizard must have came from LUMCON and got stuck in a log pile. She (which we originally thought was a he, before she laid an egg) swam all the way back to the boat when the basket was deployed. I took care of “Wilma” for several days and she made it back to LUMCON safely! I will post a photo in my later blog, when the cruise ends!
PC: Jason Bradley- an extremely talented photographer who accompanied us during our cruise! He has many more pictures coming- so stay tuned for more 🙂
In addtion to our basket and winch, I learned so much during this fun- yet extremely stressful cruise! For starters, I learned about transponders- an acoustic location system which uses pings and beeps to locate objects for later deployment. As stated, we used these devices on our ROV, basket and moorings and tracked them on a program called Tracklink 5000. It is very important to know where our equipment is while on the vessel- to ascertain nothing is under the boat or tangled (which almost happened a few times). Perhaps my favorite part of the cruise was all the amazing ROV technology! It is incredible that we can set an instrument under water and see what is happening in real time- and do scientific sampling and work! I learned how to tagline, deploy, recover and “fly” an ROV. All very dangerous- yet exciting. Posted below is a photo of my flying for the first time! The cruise is not yet over, but I am so extremely grateful for this experience, the science party and the crew I’ve grown to love with all my heart.
PC: James Aldridg from Oceaneering
And the rest! (more to come) All from Jason Bradley!
A deep sea isopod we collected!
Dreaming of beer and hamburgers.
STAY TUNED!