Microbial Stowaways: Exploring Shipwreck Microbiomes in the Deep Gulf of Mexico

Microbial Stowaways: Exploring Shipwreck Microbiomes in the Deep Gulf of Mexico

Past Expedition

Dates
June-July 2019
Location
Gulf of Mexico/Caribbean

Overview

Stowaways hide aboard a vessel as a means of (free) transportation. During a nine-day expedition on board the R/V Point Sur, scientists from the University of Southern Mississippi, the Bureau of Ocean Energy Management, and the Naval Research Laboratory discovered and characterized two unexplored, wooden-hulled shipwrecks in the Gulf of Mexico, and studied the microbial stowaways living secretly on and around them, to explore how shipwrecks shape the microbial biodiversity of the deep sea.

Features

Image of a plate found at Site 15470.
As the Microbial Stowaways project fieldwork comes to a close, we reflect on what we discovered over the past week. Two copper-sheathed, wooden-hulled shipwrecks—Site 15711 and Site 15470—give us glimpses into life aboard 19th century sailing ships and will tell us how their presence influences microbial biodiversity in the marine environment.
July 5, 2019
The stern of the shipwreck  at Site 15470 captured by ROV Odysseus.
During the lead up to, and execution of an at-sea expedition, it is often easy for me to get caught up in the details, such that I miss the larger view of what we have done. I have been affectionately calling a major element of this research trip my “Gigantic, Terrifying Experiment.”
July 3, 2019
Our expedition may be coming to a close, but this is only the beginning of our research. Over the past eight days we have collected sediment cores, pore water from sediment cores, and water from the column above the shipwrecks. These samples all must be analyzed once they are brought to the laboratory in order to discover the story they can tell us.
July 2, 2019
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Push core tubes headed down to the deep sea aboard the ROV.
The first time we all gathered around the television to watch one of the two never-before-investigated shipwrecks we are exploring, I began to mentally ask a million questions.
July 1, 2019
Structure of shipwreck visible on scanning sonar (display at top right) while ROV operator Paul Sanacore prepares to collect a sediment core with the manipulator arm.
I am an unmanned maritime systems engineer at the University of Southern Mississippi. During my ten years of working with seafloor landers and marine vehicles, one challenge I’ve faced involves localization of undersea systems.
July 1, 2019
ROV Odysseus taking a sediment sample with a push core.
This is my first research cruise and my first time sampling marine sediments. Coming from shallow freshwater lake research, I know I had A LOT to learn.
June 30, 2019
Inside the ROV control van during a dive, the ROV team and marine archaeologists work together during the investigation of an unexplored, 19th century wooden shipwreck.
Any operation on a research vessel requires communication and cooperation between the ship’s crew and the science party. We science better when we work together!
June 28, 2019
An anchor and some ceramic dishes were located amidships of Site 15711’s hull.
When you’re working 1,800 feet underwater, some days are a reminder that patience isn’t just a virtue, it’s also a job requirement.
June 28, 2019
Ocean Science and Technology Camp (OSTC) students gathered in the Marine Education Center Exhibit Hall, telecommunicating directly with the R/V Point Sur.
With summer camp coming to a close, Ocean Science and Technology Camp (OSTC) students gathered around the Marine Education Center’s video wall display hoping to catch their first glimpse of a shipwreck. After spending a full week learning about science, technology, engineering, and technology (STEM) careers, elaborate experiments, and high-tech equipment, this virtual communication was the pinnacle of their week.
June 28, 2019
This is all that was left of the lander flotation shell after the glass float imploded.
Today I saw what scientific exploration is really like. As someone said, “Two means one, and one means none,” meaning that when you are out at sea, you have to have a second or even a third of every critical piece of equipment because something is inevitably going to break and you will not be able to run to the store for a new one. Failures and setbacks are part of the game.
June 27, 2019
Retrieving a corrosion experiment placed near Anona stern in 2014.
From her graceful clipper bow and ornate floral metalwork to her interior woodwork using the finest mahogany and teak, the steam yacht Anona was a sight to behold in the early 20th century. In 1944, the former grand dame of the seas was reduced to hauling a cargo of potatoes to the West Indies when her steel hull plates suddenly buckled, causing her to sink.
June 26, 2019
Ocean Science and Technology students aboard the R/V Point Sur, next to Pelagic Research Services ROV Odysseus.
Earlier in the year, I was approached by Dr. Leila Hamdan and her team to take on a correspondent role to assist with the education and outreach component of the Microbial Stowaways project. With this latest responsibility, a new educational program was to be created to center around the dedication and experimentation of exploration research.
June 25, 2019
Plot of a bathymetric slope in degrees for a fairly large region (1.5 x 1.5 arc degrees) covering our study area. The slope of the seafloor is one of the quantities that we will be using to try to correlate with microbiomes
Machine learning refers to a recently developed type of computer algorithm (program or “App”) that has grown out of, and is similar to other kinds of artificial intelligence.
June 24, 2019
All hands on the lander – the final steps of putting together the lander, which will recover our experiments after four months, takes a team effort.
Mobilization days are overwhelming, fatiguing and non-stop. Pace yourselves and try to learn as much as possible.
June 24, 2019
R/V Point Sur at its homeport of Port of Gulfport.
Our team of interdisciplinary scientists and educators will conduct a complete archaeological investigation of two previously surveyed sites. Our work may reveal if shipwrecks impact microbial community ecology in similar ways. Our project is equal parts marine archaeology, microbial ecology, and discovery.
June 20, 2019
Marine organisms colonize the bow of the steel-hulled former luxury yacht Anona which sank in the northern Gulf of Mexico in 1944 in more than 4,000 feet of water.
Archaeology, simply defined, is the science of learning about past human behavior by examining the physical remains left behind by people of the past. Archaeology, at its core, is about discovery.
June 20, 2019
Principal investors Dr. Leila Hamdan and Melanie Damour preparing push cores for sediment collection.
Our work has revealed microorganisms are cosmopolitan, diverse, and their communities form from interaction with the physics, geology, biology, and chemistry of marine environments. In 2011, however, my research took a sharp turn when I met my first marine archaeologist, and my co-principal investigator on this expedition, Melanie Damour.
June 20, 2019
Acoustic landers used to recover biofilm recruitment experiments on the R/V Point Sur after spending four months on the Gulf of Mexico seafloor.
While you may not be able to see them, microbes are abundant and present in all habitats on Earth--including the deep sea. Microbes are an essential component of every ecosystem, and this certainly holds true for the seafloor.
June 20, 2019

Multimedia

Featured multimedia assets associated with this project.

Education

Our Learn & Discover page provides the best of what the NOAA Ocean Exploration website has to offer to support educators in the classroom during this expedition. Each theme page includes expedition features, lessons, multimedia, career information, and associated past expeditions. Below are related top education themes for this expedition.

Meet the Exploration Team

Learn more about the team members and their contributions to this project.

Associate Professor
School of Ocean Science and Engineering, University of Southern Mississippi
Marine Archaeologist
Bureau of Ocean Energy Management
Research Geophysicist
U.S. Naval Research Laboratory
Undersea Systems Engineer
University of Southern Mississippi
Marine Archaeologist
Bureau of Ocean Energy Management
Laboratory Manager
School of Ocean Science and Engineering, University of Southern Mississippi

Resources & Contacts