Back in August, I accompanied Nancy Rabalais and LUMCON dive safety officer Ben Acker on a dive trip to station C6C. That location is an oil platform south of Terrebonne Bay with equipment for monitoring water conditions such as temperature, salinity, and dissolved oxygen. I’ve posted before about our work there exchanging equipment and taking samples. I’m involved with the LUMCON dive team through my continued collaboration with Nancy in researching seasonal hypoxia (a.k.a. the Dead Zone) in the region. For example, see our most recent paper on dead zone microbiology. The purpose of this particular trip was to show CBS News the heart of the Dead Zone. Nancy’s recent NOAA-sponsored hypoxia cruise (see Celeste’s trip report) revealed that this year’s zone of hypoxia was the largest ever, and it has attracted a lot of attention as a result. Below is the full-length GoPro footage of the dive, in three parts. A big chunk of the second and third parts are in blackness, at the bottom of the dive, where we searched, in vain, for a lost piece of equipment. But there is some beautiful footage of the rest of the water column if you scroll through the individual videos. A portion of this was included in the CBS News profile. UPDATE 10/4/17: Times-Picayune reporter Sara Sneath found this post and put together a cool summary and link for us at NOLA.com.
After the research cruise in which Celeste helped Nancy Rabalais and her team measure the largest Dead Zone yet, news agencies are taking notice. Yesterday I dove with Nancy and Ben Acker of LUMCON at a site in the heart of the Dead Zone, station C6C (featured in many previous posts). Nancy maintains multiple SONDEs on a leg of the oil platform to measure dissolved oxygen, temperature, salinity, and other important parameters. Our purpose yesterday was to search for a SONDE lost on a previous dive and introduce the CBS News team to the region of hypoxia. We also wound up providing footage for the CBS News crew to use in their segment that you can watch HERE. I shot the underwater footage. We’ll be posting the full video later. Here are some shots from the R/V Acadiana yesterday.
Enjoy some time pictures from time points 0200 and 0600 as we completed our 24 hour survey at the C transect site. The video I have uploaded is of the Platform and its fog horn that sounds every 20 seconds or so. Its a real joy to work and sleep to.
Well Day 1 has come and starting to end though my day will still go on for another 10-12 hours. When I woke up this AM, the ship was tossing and rolling quiet a bit for being in the Gulf. The first time point was at 0600 and between lack of sleep, an early morning, and some good waves, I wasn’t exactly feeling bright eyed and bushy tailed, nor was anyone else. Alas, the day went on and the time points began to come and go.
The first and second time points were split up by a trip just past the site C6B where Dr. Nancy Rabalais (LUMCON) and Dr. Brian Roberts (LUMCON) took sediment cores for experiments they wanted to run back at LUMCON.
The second time point was quiet, it was just me sampling so I had the whole CTD to myself. But of course the day isn’t complete without some type of problem ! HA! I am three for three on cruises that have some sort of issue, but some say thats oceanography. Anyways, thanks to the awesome crew of the RV Pelican, and some patience, we got the hydraulics fixed and were able to once again deploy the CTD.
While on the water, you get to see a lot of things : dolphins, fish, jelly fish, etc. But today, between time point three and four, I got to see a Water Spout which I was really excited about. It was pretty far away and the only picture we got is thanks to Mary Kate.
Overall, all is going well. I am waiting for time point 5 to come (2200) and then hopefully get a nap in before time point 6 (0200). Follow my twitter account (@Hensonmw_08) for more live updates. Enjoy some pictures!
Sampling will once again include three depths, while collecting water for nutrient data and filters for microbial community data. The idea will be similar to our Fronts sampling.
Others on the cruise will be working on sediment cores (I am excited for this!) as well as work on biogeochemistry rates.
Follow along as we go on our five day journey! And don’t be afraid to ask some questions! And Make sure to follow me on Twitter for live updates (@Hensonmw_08) as well as Mary Kate (@mkrogener) and Lauren (@GilliesLE).
Two weeks ago, I was able to take part in the 6 day Northern Gulf of Mexico research cruise. This is its 31st year that it is going on and our third year taking part in it (see 1, 2). This year I was the lucky one to go instead of Dr. Thrash. This was my first official collection cruise so I was pretty excited to finally get out on a boat and put into practice everything I had learned while at the CMORE summer course.
Though for the most part the set up and collection was the same as past years, this year I added a little twist to the game: Culturing.
The cruise was a lot of fun and as usual I learned a ton about the Northern Gulf of Mexico and hypoxia. The main focus of the rest of the cruise was determining the size and nature of the 2015 “dead zone”. Dr. Rabalais (LUMCON) and her team worked countless hours to make sure all the data was collected and ready to be sent to NOAA, the EPA, and the public. This year we found that the dead zone was larger then scientists had predicted. This year’s dead zone extended over more than 6,400 square miles.
A few more pictures of me with some of the awesome graduate researchers (Mary Kate Rogener (@mkrogener) from Dr. Samantha Joye’s lab (UGA)) and Post Doc Ari Chelsky (Brian Roberts, LUMCON) also on board the RV Pelican.
Keep an eye out for more publications from the Mason and Thrash groups on this exciting research area!