Posts Tagged ‘research cruise’

VIDEO — Teachers participate in hands-on science research on UGA Skidaway Institute research cruises

June 20, 2016


Teachers join UGA Skidaway Institute research cruises

June 9, 2016

JoCasta Green became a teacher after she was told as a child she couldn’t be a scientist because she was a girl. In May, the pre-K teacher from Decatur, Georgia, achieved a small piece of her childhood dream by joining a research cruise on board the University of Georgia Skidaway Institute of Oceanography’s Research Vessel Savannah. Green was one of two teachers on the overnight cruise, some of the first to participate in a cooperative program between UGA Skidaway Institute and Georgia Southern University’s Institute for Interdisciplinary STEM Education (i2STEMe).

“Because I am an elementary teacher, I was afraid that maybe I shouldn’t have applied,” Green said. “However, once I got here and everyone was so interested and wanted to share, I really did learn a lot.”

JoCasta Green (right) learns how to prepare a conductivity-temperature-depth sensor array for deployment with the help of Natalia Lopez Figueroa from Hampton University.

JoCasta Green (right) learns how to prepare a conductivity-temperature-depth sensor array for deployment with the help of Natalia Lopez Figueroa from Hampton University.

UGA Skidaway Institute scientist Marc Frischer led the cruise with the aim to hunt, collect and study doliolids — a small gelatinous organism of great significance to the ecology and productivity of continental shelf environments around the world. Green and middle school teacher Vicki Albritton of Savannah were the only teachers on board and were able to actively participate in the research activities.

“I think giving any teacher the opportunity come to out to sea is an amazing experience,” Frischer said. “I think it’s transformative, but to have them integrated into the research, we haven’t really done that before.”

JoCasta Green and Marc Frischer chat during the cruise.

JoCasta Green and Marc Frischer chat during the cruise.

Green and Albritton participated in the deck activities. They helped launch the CTD (conductivity-temperature-depth) sensor packages mounted on heavy metal frames and deployed plankton nets that concentrated a wide variety of tiny marine creatures into a small container. The two teachers then worked with the science team in the darkened wet lab to sort through gallons of water and to isolate the doliolids they were seeking.

“I was hoping to see science in action, and I did that all day long,” Albritton said. “I got to participate and learn what was going on and take many pictures, and now I have a wealth of information to take back to the classroom.”

Albritton says an experience like the cruise raises teachers’ credibility in the classroom, because the students see the teachers going out to learn more themselves. “If I want them to be perpetual learners, then I need to demonstrate that same trait,” she said.

Although Green admitted she was nervous about the cruise initially, she credited the scientists with making her comfortable. “They were great teachers,” she said. “I understood what we were doing and why we were doing it.”

Albritton echoed Green’s thoughts and cited the graciousness of everyone she encountered on the cruise. “There wasn’t condescension or an implication that we didn’t know anything,” she said. “There was genuine respect for all of us as professionals in our fields. That was really wonderful.”

A research cruise on the 92-foot R/V Savannah will never be confused with a luxury vacation cruise. Green and Albritton agreed the food was good, but the working spaces were tight and the bunks and cabins even more so.

Green and Albritton were the second group of teachers to join an R/V Savannah research cruise through the partnership with Georgia Southern’s i2STEMe program. The goal of the i2STEMe program is to improve the teaching and learning of science, technology, engineering and mathematics at all levels from kindergarten through college throughout coastal Georgia.

The partnership between UGA Skidaway Institute and i2STEMe is expected to grow. Five additional doliolid cruises are scheduled this year with space available for as many as four teachers on each cruise. UGA Skidaway Institute will also offer two half-day cruises this month as part of i2STEMe’s summer professional development workshop for teachers.

According to Frischer, the ultimate goal of scientific research is to generate and communicate information. “Teachers are some of our most important communicators,” he said. “They communicate to the next generation, so I think it is really special to be able to bring teachers right to where the research is happening. It gives them a total perspective, not only on what we are doing, but how research works and to communicate that to their students.”

Both Green and Albritton said they would encourage their fellow teachers to take advantage of opportunities like this. “You would be crazy not to, in terms of learning and what you can bring back to the kids in your classroom,” Albritton said. “It’s an experience you will never forget.”

The cruise was part of a research project, The Cryptic Diet of the Globally Significant Pelagic Tunicate Dolioletta Gegenbauri, funded by a grant (Grant numbers OCE 1459293 & OCE 1459510) from the National Science Foundation’s Biological Oceanography program. The grant includes two ship days per year to support broader impact goals of providing experiential learning opportunities for educators.

Vicki Albritton (l) and JoCasta Green

Vicki Albritton (l) and JoCasta Green

Black Gill cruise video on YouTube

December 14, 2015

It’s been a month and a half since we completed the fall Black Gill research cruise, but we’re finally getting around to posting a video on the day. Click on the photo to view the video on YouTube.

Shrimp with Black Gill.

Shrimp with Black Gill.


More cruisin’ across the South Pacific

November 11, 2013

Skidaway Institute scientist Clifton Buck is on a lengthy research cruise in the South Pacific and is blogging about his experience.

Ahoy There!

Current Position: S 12 0.1067’ W 93 27.6890’

We are now a quarter of the way through our trip and the sun has finally begun to shine. The first two weeks were rather gloomy and downright chilly. While we are in the tropics, and you might expect hot and humid temperatures, the temperature near the South American coast is moderated by the cold water being brought to the surface by the upwelling action I described in a previous post. This is the same process that brings cold water to the California coast. Our cruise track has now brought us to the transition zone between the cold, coastal waters and the warmer waters of the subtropical gyre. Sea surface temperatures will now rise from about 17oC to a bath-like 28oC.gt13-cruisetrack 11082013

Days at sea are busy! With 32 scientists on board there is always someone working somewhere, 24 hours a day. And with an operating cost of $30,000 per day there can be no idle time for the ship. When we arrive on station work must begin whether it is 3:00AM or 3:00PM. That goes for Saturdays and Sundays as well; there are no weekends at sea. Some groups are fortunate to have enough personnel on board that they are able to split their work into 12 hour watches. However, most groups require everyone to be involved when conducting operations. And some groups are only one person, like me, and must be available at all times. This can lead to some very long days and nights.

With that said, a typical day starts at 7:00AM. Breakfast is served each day from 7:15 to 8:00. The cook staff, of which there are three, does an excellent job of providing a variety of foods at each meal and breakfast is no exception. Today there were huevos rancheros, blueberry pancakes, oatmeal, bacon, sausage, and pineapple coffeecake. And there are always self-service items like dry cereal, yogurt, and toast available. Most importantly, there are two coffee pots that must be full. On a ship, you live by the edict “You kill the Joe, you fill the Joe!”

Lunch and dinner are at 11:30 and 17:00. Both of these meals feature a salad bar which might be the best indicator for the length of time the ship has been at sea; let’s call it the vegetable index factor (VIF). At the start of the trip we are blessed with fresh veggies including green, leafy lettuce, tomatoes, avocados, spinach, mushrooms, and all the other produce you can imagine. As time goes by these items slowly disappear to be replaced by more hardy varieties. There are no markets in the middle of the Pacific and no resupply stops for us! In the last week we have seen the lettuce turn to Romaine, the spinach and avocados vanish, and the tomatoes change from plump cherries to larger (and less tasty) slicing types. Slowly but surely we will move from fresh fruits and vegetables to all canned and preserved. Yesterday we had the first appearance of the very sad canned mushroom. I’m not sure as to what the intended use of canned mushrooms could possibly be but they are without question a poor salad topping. Eventually we will be left with cabbage and all canned vegetables but that is in the future and like with any sad, inevitable reality I prefer not to dwell on it. In any case, both lunch and dinner are finished with dessert. Whether ice cream, cake, cookies, or pie there are always treats to challenge the waistline.

 We are now coming up on our eleventh station and will occupy this point for the next three days. We won’t have Internet because our antenna will not be able to “see” the satellite that keeps us connected to the outside world. It can be refreshing to go unplugged from all the noise on the web but I know that it does not just disappear. My Inbox will be flooded when we reconnect on Wednesday.

Thanks for reading!

Blogging on a Pacific Ocean cruise

October 29, 2013

Skidaway Institute scientist Clifton Buck has just begun a 57-day research cruise that will take him from Ecuador to Tahiti. He will be updating this blog with accounts of his trip.

Ahoy There!

OLYMPUS DIGITAL CAMERAI am will be spending the next two months aboard the University of Washington’s scientific Research Vessel Thomas Thompson  My shipmates and I are travelling from Ecuador to Tahiti as part of an international effort called GEOTRACES to better characterize the sources, sinks, and biogeochemical cycles of trace elements and isotopes (TEIs) in the oceans of the world. Trace elements are present in seawater at concentrations that are often far less than a part per billion but often play important roles in the ocean as nutrients, contaminants, and process tracers. The research implications will help us understand areas of study including climate change, the carbon cycle, ocean ecosystems, and environmental contamination. OLYMPUS DIGITAL CAMERA

Our route will take us through three distinct regions of the eastern Pacific Ocean, each with their own distinct chemical characteristics. We begin the highly productive waters off the coast of Peru. This region is known as one of the finest fisheries in the world due ocean currents that bring nutrient rich waters to the surface by a process called upwelling. These nutrients support a great deal of biological production in depths that light can reach otherwise known as the photic zone. However, when the microscopic plants and animals living in the photic zone die they sink towards the bottom. As they sink, their organic matter is remineralized by respiration which uses the dissolved oxygen in the surrounding waters. The result is an area within the interior of the ocean that is very low in oxygen called the oxygen minimum zone or OMZ. Similar areas can be found off the coasts of Oregon and Louisiana in the United States. The low oxygen concentrations not only impact the plants and animals in the area but also affect the cycling of the trace elements as well.

Next we will study the hydrothermal zone at the East Pacific Rise. The rise is an area of active volcanism on the sea floor and is a source for both particulate and dissolved metals to the interior of the ocean. At a hydrothermal zone, water within the ocean bottom can come into contact with magma and become incredibly hot. In addition to heat, the magma releases trace elements into the water. This super-heated water is then released through fissures in the crust creating features like “black smokers” which creates a plume of seawater enriched in TEIs. The magnitude of these sources is poorly understood and it is hoped that work on this project will help provide insights into their importance. We also hope to characterize the processes responsible for supply and removal of TEIs with the plume.

Finally, we will traverse the northern edge of the central South Pacific gyre. A central gyre is a system of currents which flow in a circular pattern over thousands of miles. The gyre interior is one of the most nutrient poor (oligotrophic) regions in all of the world’s oceans. In fact, this area contains the bluest water in the world because there is so little living in it.

My role on this project is to collect atmospheric samples. The atmosphere is an important source for trace elements to the surface ocean particularly in areas that are distant from the continental shelf and rivers. In future posts, I will describe the processes and equipment that we use to do this work. I will also try to give a sense of what life is like on a ship at sea for 57 days. Please check back often and leave questions for me in the comments section. I will do my best to answer them.

Thanks for reading!

Barents Sea Cruise 5-1-13

May 1, 2013

Skidaway Institute scientists Marc Frischer and Jens Nejstgaard are participating in a research cruise in the Barents Sea, north of Norway. This is an account of the experience from Marc.

First day of the cruise.  Everyone is excited and anxious.  We were all on board the ship by 9:00am and busy scurrying around making final preparations, securing instruments & lab gear and setting up the various work stations.  The crew was exceedingly helpful and efficient.

The Marine Tech was delayed in Oslo (coming by plane) so we couldn’t leave until he arrived.  He made it around noon and we were underway at about 12:45pm.  We headed north through the fjords.  The scenery was fantastic.  Calm water, snow and fog covered mountains, sun and clouds.  Not too much wildlife present, some seabirds.  The captain (Tom Ole) predicted that we’d see a lot of life near the ice edge, perhaps even whales.  Next week they have a whale observing cruise scheduled in the same area that we are heading to now.

Heading out to sea

Heading out to sea

After discussions with Aud Larsen and Jens Nejstgaaard we decided that due to our late departure we would head to immediately to the polar front and ice edge to take full advantage of the night to steam.  Of course night doesn’t really feel like night since it only gets dim for a few hours this far north this time of year, but for some reason we still get tired.  We also decided to stop a various points along our course to characterize the water and plankton communities.  We are occupying a standard transect used by IMR (Norwegian Institute of Marine Research) called Fugløya – Bjørnøya and are lucky that the previous week (25 – 29 April 2013) this line had been run giving us a pretty good idea of what we’ll find this week.  The data from the previous week indicated that water conditions are not unusual and that we could expect to reach the polar front approximately 225 NM north of our first sea station after leaving the fjords.

Our goal is to locate water masses containing the algae Phaeocystis pouchetti in various stages of its bloom cycle so that we can study how it is eaten (or not) by other organisms and thereby contributes to the food web.  It’s a very interesting and mysterious algae because of its importance as a major blooming algae in high latitude waters and because whether it is eaten seems to be highly variable.  We suspect that at times it is readily eaten and at others it is not and that this is mainly due to its ability to dramatically alter its size, chemically defend itself from predation and its resistance to ubiquitous viruses.  Despite the fact that this algae is slimy and smelly, all of us who study it love it because it’s so interesting.  We call the  project “Phaeo Enigma” because there is so much we don’t understand about this organism.

We stopped around 3:30 pm (13:30 GMT) in the fjord to take a quick sample.  The water column profile was classic textbook fjord with a chla maximum at about 23 meters.  The water contained big colonies of the algae we are studying (Phaeocystis pouchetti), but we are sticking with our plan to head north.

Continuing north we finally made it to our first sea station at 70 30 N 20 00 E.  Again, it was a quick stop to look at the water.  As we expected we found classic Norwegian Coastal Current water.  Phaeocystis was present here too, though at lower concentrations that we found in the fjords.  After a quick 30 min stop we were back on our way.

Since there wasn’t much to do most for the remainder of the evening, most of us thought it was prudent to turn in early for the evening.  Soon enough we will all be very busy!

Skidaway Institute scientists cruise Florida’s ‘Big Bend’

December 7, 2010

“It’s a really exciting place to do oceanography, because you can throw almost any kind of instrument over the side, and it will come up with observations that lead to new science,” said Skidaway Institute scientist Catherine Edwards. A former postdoctoral fellow at Florida State University, Edwards describes her recent research cruise to the little-studied “Big Bend” section of the northeastern Gulf of Mexico.

One of Skidaway Institute’s instrument packages is lowered into the water.

In an effort to extend FSU’s coastal ocean observatory in the Florida Big Bend, Edwards deployed two self-contained bottom-mounted sensors that measure temperature, salinity, currents, and how they vary from the seafloor to the surface. The sensor packages are moored on the outer shelf to help Edwards and FSU scientists learn more about how the Gulf wind and tidal currents transport material from the shelf edge to the shore. Edwards was assisted by Austin Todd, a graduate student in physical oceanography at Florida State University.

Catherine Edwards with FSU graduate student Austin Todd and one of the instrument packages.

Many fish are spawned at the shelf break, but spend their juvenile stages in the salt marshes and estuaries. Distances of 50 to 75 miles are too far for fish larvae to swim on their own and physical models, by themselves, do not fully explain how larvae are able make the journey.

“Whether you’re tracking fish larvae or oil, the science question is the same,” Edwards said. “We are trying to develop a clearer picture of how the physics and biology interact.”

Edwards does have an idea. Coastal sea breezes shift on- and off-shore between day and night during spawning season in the Gulf of Mexico. The winds push the surface water in one direction, while deeper waters compensate with currents in the opposite direction.

“Fish larvae don’t swim far horizontally, but they do migrate up and down the water column on day-night cycles fundamentally tied to the timing of the solar cycle and thus sea breeze,” Edwards said. “Depending on the larval migration, they may simply shift their position in the water column to ride the diurnal shifts in the current to shore.”

The cruise wasn’t easy to arrange. Edwards had access to the needed instruments, but no money for ship-time, which often runs thousands to tens of thousands of dollars a day for capable oceanographic vessels. She was able to hitch a ride on a NOAA National Marine Fisheries Service (NMFS) vessel that was conducting a twice-annual cruise to studying fish biology throughout the Gulf of Mexico.

“I’m a physicist by training, so I really enjoyed the chance to ‘play biologist’ for the two week leg of the cruise,” she said. “That interaction was really valuable for planning future work with NMFS scientists.”

Edwards set up two sets of instruments very near a NOAA weather buoy. While the weather buoy collects data on the conditions above the surface, Edwards’ instruments will do the same for the conditions in the water column. Since weather conditions often drive water movement, the ability to combine the two data sets will provide valuable information.

Edwards will return in six months to collect her instrument packages and the data they have recorded.