Oceanic Updates

Another great part of conducting science research at sea is meeting and working with a number of graduate and undergraduate students. This C-IMAGE cruise we have sailing with us, Elizabeth Brown and Bo Yang from USF College of Marine Science and Matt Flynn from Eckerd College. As well as, Brian Wells and Lee Russell from Florida State University as part of the DEEP-C consortia (see their blog entries). Enjoy these stories about the USF students aboard.

Elizabeth Brown on deck WBII preparing to collect plankton sample for foram research

Elizabeth Brown, USF Graduate Student

Hi! I’m Elizabeth. I’m a paleontologist – I’m not the kind who studies dinosaurs (although I love dinosaurs), even if I always get asked that ^^;; I study marine microfossils; tiny creatures the size of a grain of sand, some of them only a single cell, called foraminifera, or “forams” for short. Forams are among the oldest creatures in the evolutionary record. The oldest we’ve found are over a billion years old, and the genus is still going strong today. That’s what makes them so critically important to people like me, who study how the ocean has changed over the ages! Larger, more famous fossil animals, like mastodons, dire wolves, megalodon sharks, pterodactyls , and triceratops are wonderful, but they lived for relatively short periods of time in the big picture of geologic history. It’s like judging a photo album by a single snapshot. Studying how the tiny forams lived & evolved for so long gives us a much broader idea of changing earth, glaciers and oceans.

You know that phrase “You are what you eat?” Well, turns out, that’s true! Forams build their bodies and skeletons, incorporating various nutrients and elements (calcium, magnesium, barium, carbon, oxygen, etc) directly out of the ambient seawater.  Their fossil remains are therefore a snapshot of the ocean chemistry at the time the creature was still alive.

Elizabeth Brown and Karen Dreger successful retrieval of the SIPPER plankton imaging system during C-IMAGE cruise

What’s more, ocean chemistry changesin mathematically predictable ratios with major changes in the environment: major temperature changes, major shifts in salinity, global sea level vs. formation of huge glaciers on land, all kinds of things you’d never think you could see through a fossil plankton (woah!). In short, by breaking down fossil skeletons of tiny forams, analyzing their chemical proportions, and doing a little back-calculating, I can track the evolution of the oceans through the ice ages. How crazy is THAT!?

Bo Yang, USF Marine Science Graduate Student

Bo Yang is a third year graduate student at CMS in Dr. Byrne’s lab. He is working with a team of scientists conducting long term monitoring of the CO₂ system in Gulf of Mexico, a research project sponsored by NOAA. His team measures four things in seawater–the pH, carbonate ion concentration, dissolved inorganic carbon (DIC), and total alkalinity (TA). Two measurements must be measured on board because they are very sensitive to interactions with the atmosphere; these are pH and carbonate ion concentrations. Bo uses spectrophotometric methods to measure the pH and carbonate ion concentration soon after the seawater samples arrive onboard from the Niskin bottles. These methods are the most accurate in detecting very small changes in the ocean’s chemistry related to acidification. The dissolved inorganic carbon and total alkalinity are measured on shore on shore in the lab from the water samples collected while at sea.       

Bo Yang (left), Leslie Wade and Matt Garrett on deck awaiting CTD retrieval during C-IMAGE FEB cruise

Bo’s academic timeline

Bo’s name in Chinese means wave and he has spent many days at sea experiencing waves firsthand. For his research he has sailed 130 days at sea including cruises in the East and South China Sea, Gulf of Mexico, Western Atlantic, Northeast Pacific, and Bering Sea. Bo completed his Bachelor’s degree in Xiamen University in China in marine science with a major in marine chemistry and a Master’s degree in environmental chemistry to develop a new technique to measure pH using spectrophotometry. While in China he had read about Dr. Byrne’s research and decided to study abroad for his PhD with Dr. Robert Byrne’s. Visit Dr. Byrne’s at http://www.marine.usf.edu/faculty/robert-byrne.shtml

Why monitor CO₂in the ocean?                                                             

Bo Yang and Karen Dreger deploying SIPPER plankton imaging system during C-IMAGE FEB cruise

For Bo’s research the issue is ocean acidification which is a decrease in the pH of seawater. This is a phenomena being observed throughout the global ocean system. Seawater is naturally well buffered with an average pH of 8.2. This constant pH level provides a stable environment for sea life however the chemistry of the ocean is changing so that pH levels are decreasing which causes the ocean to be more acidic. A little change in pH has big impacts on the ocean’s critters, especially those with carbonate shells or other external structures that protect the softer internal parts of the plants and animals. The ocean absorbs about a quarter of the CO₂we release into the atmophere every year, so this is a benefit of the ocean absorbing this greenhouse gas. However, as atmospheric CO₂ levels increase, so do the levels in the ocean. This is the downside of the CO₂ absorbed by the ocean… it is changing the chemistry of the seawater, a process a process called ocean acidification. For some nice educational resources on Ocean Acidification visit NOAA at http://www.pmel.noaa.gov/co2/story/OA+Educational+Tools

Bo Yang in Long Lab while in transit to first sampling station awaiting first water samples C-IMAGE cruise

                                       

Elizabeth in shipboard lab where she looks for forams in the plankton samples collected C-IMAGE Feb cruise

 Wm. Brian Wells, PhD student, Florida State University

  I am a Biological Oceanographer and my current work is focused on determining the time needed for degradation of the oil spilled from the Deepwater Horizon accident by naturally occurring microorganisms.  Degradation in this sense is the assimilation or removal of the oil from the environment.  Microorganisms use oil for food and some prefer specific compounds of the oil over others.

We look at the various sediment settings and through experiments in the lab and at sea, we can estimate the impacts of future spills.  This research cruise is the eighth cruise that I have taken sediment cores from shallow shelf sites and the deep sea.  Some of the cores will have oil added to the sediments and we will monitor oxygen consumption and other parameters to quantify microbial respiration.  We will also look at the carbon: nitrogen ratios of the sediments back at our lab. 

Brian Examining Cores On Rack

Microbial samples will be sent to partner scientist to determine which organisms are responsive to inputs of oil. Cores are used by other scientists to do many different things and we will freeze cores taken on board and distribute to others.  I am a native Floridian and have been interested in the ocean my entire life. I have been fortunate to have the opportunity to be a part of the Deep-C consortium through the Gulf of Mexico Research Initiative.  My ultimate goal is to do my part to ensure that future generations have the same opportunities to enjoy the Gulf of Mexico as much as I do.

Lee Russell, PhD student, Florida State University

My name is Lee Russell and I am currently working towards a PhD at Florida State University.  I am a Biological Oceanographer and my main research focus revolves around bubbles.  That’s right, bubbles.  I came to be involved with this top secret bubble project in a sort of round-about way. After graduating high school, like many people, I had no clue what I wanted to do with my life or remotely what direction I wanted to send it in.  Well, that’s not entirely true.  I knew I had just been through 12 years of school and I knew I wanted to do some good for people.  So I started my undergrad degree in Political Science. By the time senior year came around, I had taken enough classes dealing with environmental science that a double major was possible, so I decided to take a few more classes so that I could double major.  With graduation closing in, still having no clue about a life direction, I took a class called “Current Environmental Issues”, taught by an FSU Oceanography professor and things changed.  This was the first class that actually “made sense” to me in terms of being applicable to real life.  Yes, I finally got inspired my senior year of college.  Applying for graduate school at FSU Oceanography has been the most important and easiest decision I have made in my life.

Lee Releasing Sample Multicore

So here I am on the RV Weatherbird II, pulling tubes of mud from the bottom of the sea floor and I couldn’t be happier.  You may say “what in the world does that have to do with saving the environment, Lee?”, and you would be right to say that.  But it’s not about that.  It’s not about mud, bubbles or the manatees.  It’s about the explosion of knowledge and the widened perspective I have gained in the past 2-3 years working towards my graduate degree.  Maybe I would have come to know some of the things I know now, but not in this accelerated fashion.  Graduate school has been my true education.  I look forward to applying the knowledge I have gained of intricately minute and incredibly massive ecological systems in a way that creates real change, both politically and educationally.  Enough of the esoteric stuff, I’ll get back to the business on the boat.  I am here not for my own research, but to provide assistance for some fellow researchers. 

 I have been mostly tasked with helping to get the 1000 lb multi-corer (they call it the lunar lander because that’s what it looks like) on and off the boat, which can get quite hairy when the seas are rolling like they have been this cruise.  Once we get the sediment cores

Brian and Lee unloading sediment cores from holding rack--- time to take samples.

 on deck (sometimes they are mud, sometimes sand, depending on depth), we slice them up, bag the sections, and freeze them to save them for analysis when we get back to our lab at FSU in a week or so.  I have also been tasked with pumping seawater from the surface of the cores through specialized filters. When we are back in the lab scientsits can tell if there are oil-degrading bacteria living in the water. Remember the oil spill?

This has been a great cruise with the Captain and Crew keeping us safe, sound, and well fed.

The R/V Weatherbird II captain and crew include Brendon Baumeister “Boomer” (Captain), Ryan Healy (Assistant Captain), Mike Adams (Chief Engineer) (Photo Not Available), George Guthro (Assistant Engineer), Andrew Warren (Science Technician), Thomas Lee (Chef), and Chris Bailey (Deck boss).

Captain Brendon "Boomer" Baumeister

Assistant Engineer George Guthro

Chef Thomas Lee

Deck Boss Chris Bailey

Science Tech Andrew Warren

Assistant Captain Ryan Healy

Enjoy a collection of photos of the scientists of the R/V Weatherbird II on the February 2013 Ocean Grazers Expedition.

Science Personnel include Leslie Schwierzke-Wade (USF) – chief scientist, Matt Garrett (USF/FWRI), Karen Dreger (USF), Jonelle Basso (USF), Bo Yang, Elizabeth Brown (USF), Brian Wells (FSU), Lee Russell (FSU), Cedric Magen (FSU), Teresa Greely (USF),  Matt MacGregor (Teacher at Sea), and Matt Flynn (Eckerd).

Leslie Schwierzke-Wade is the Chief Scientist for the C-IMAGE expedition. She completed her masters degree at USF Marine Sciences and is now working for C-IMAGE scientist Kendra Daly to lead plankton monitoring research in the Gulf of Mexico.

Karen Dreger is a Research Engineer Technician working with C-IMAGE scientist Kendra Daly.

Matt Garrett works for Florida Marine Research Institute (FWC-FMRI) and is a new graduate student at USF Marine Science with C-IMAGE scientist Kendra Daly's lab.

Bo Yang is a USF graduate student working in Dr. Byrne's chemistry lab.

Jonelle Basso is a Research Techician in the microbiology lab of C-IMAGE scientist John Paul. .

Elizabeth Brown is a USF Graduate Student in Dr. Pamela Hallock-Muller's lab.

Brian Wells (center) is a FSU Graduate Student working in DEEP-C scientist Dr. Markus Huettel's lab.

Lee Russell is an FSU graduate student working in Deep-C scientist Markus Huettel's labratory.

February 8, 2013

This morning began with the Northern most station, PCB01, right off Panama City.  This was a shallow site at only 25 meters depth.  We arrived on site at 0600.  At one point land could be seen until the fog rolled in.  We were even able to get cell phone connection!  Now, we’re heading back along the transect line collecting data using the SIPPER and stopping at every predetermined station to collect data.  We had visitors along the way.

A pod of dolphins took the opportunity to ride the bow wave of the Weatherbird II.

A beautiful sight brightens the day for the crew of the Weatherbird II.

One of many pictures capturing the beauty of dolphins.