RSMAS Undergrad Focuses on Climate Change and Corals

My name is Katie, and I am currently a senior at the University of Miami studying Marine Science and Biology, but have been spending a lot of time at the Rosenstiel Campus in Dr. Andrew Baker’s Coral Reef Conservation Lab. It has been two years since I have started working alongside Andrew Baker and his graduate students, and I have dedicated all of my time to learning the various genetic techniques to study corals and their algal symbionts.

Ross Cunning, a current RSMAS graduate student in Baker’s lab, has given me a lot of guidance and has taught me a great deal about the different interactions among coral and their algal symbionts. Over the past two years, I analyzed DNA from Panamanian coral fragments to see whether they are acquiring more heat-tolerant algal symbionts over time, which may help them adapt to rising sea temperatures. I have also measured the growth rates of these corals in Tom Capo’s Coral Resource Facility to see how these heat-tolerant symbionts affect coral growth. I have also been working with graduate students Nate Formel and Kelly Montenero to see how different nutrient levels and element concentration levels will affect the symbionts and more so, their resilience to climate change. Overall, the analyses of these samples are quite meticulous, but the data says quite a lot about the relationship between climate change and its effect on corals. One thing I love most about this work is that it is always creating new questions and new possibilities to find an answer.

I hope to complete a Senior Thesis in my last year at the University of Miami. I would like to take a closer look at how the different symbionts of these corals must better adapt to their environment in order to withstand bleaching events in response to climate change.

Katie Dziedzic
Undergraduate Student – Marine Science & Biology
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How I Survived the Bering Seas: A Journey to RSMAS

I am standing on the deck of the Mothership. It is Alaska’s largest fishing vessel capable of processing 55 tons of Pollock every 90 minutes and is 800 feet of pure processing power. I am waiting for the next delivery to arrive from a smaller boat transferring full nets to the mothership for processing. My role is a fisheries observer, the person responsible for collecting fisheries management data for the U.S Government’s National Marine Fisheries Service.

My journey began when I saw an ad for “observers” to collect fisheries data for the National Marine Fisheries Service. Within ten days, I found myself on a plane heading to Anchorage for a three week training class. As a female, I had no idea what to expect from working on an all-male fishing boat for up to three months at a time. The safety training was nothing short of terrifying and the prospect of dying in the freezing waters of Alaska loomed over my head and invaded my dreams. Then, three days after I had completed the training, I got the call to duty and was heading to Dutch Harbor, the largest fishing port located in the middle of the Aleutian Islands, to board my first vessel. My first assignment was in 20-foot seas and was terrified as I mustered on deck to sample my first Pollock trawl, and, my career began as a North Pacific Groundfish Observer.

I worked on fishing vessels in Alaska for more than five years and accumulated over a thousand sea days working on trawlers, longliners, pot boats, pelagic trawlers, longline pot boats, set nets, and gill nets. I endured days with 30-plus foot waves and days of glassy seas. I experienced being truly scared for my life to being overjoyed from living and working on the water. I witnessed the tragedies of losing men to the Bering Sea and the triumphs of fishermen making incredible paychecks to feed their families back home on land. I have created friendships that will last a lifetime. These have been the most powerful and impactful years of my life.

Through the years, I had gained so much knowledge about how the fishing industry works, collecting good data, and fishery regulations. I saw firsthand how dynamic and emotional the fishing industry can be, meaning, heated debates and fighting about this year’s quota prices, long periods spent away from family, losing crew members to the sea, and the constant fighting of the elements. Being apart of this lifestyle not only took courage but a sense of humor and the will to keep going strong until the end of the season, and I loved being apart of it.

There are so many different people involved in the fishing industry, from the fishermen to industry stakeholders, scientists, processors, marketers, and the public. They all rely on healthy fish populations not just for their livelihoods, but for food. When fish stocks are improperly managed or are overfished, everyone involved is affected. During my time as an observer, so many questions about fisheries were left unanswered. Where does all this data go? How is the data utilized in the regulatory process? How do new policies and regulations get implemented? What other kinds management strategies are available to improve sustainability of the stocks? Why are other fisheries doing so poorly? How are catch quotas set? Why are we still overfishing?

I was hooked on fish and realized that a higher degree was needed in order to answer my questions and further my career in fisheries management. My wild journey led me from the Arctic north to Miami and RSMAS. I can now say proudly that I have learned the answer to my questions about how stock assessments work, uses of observer data, strategies NMFS employs to manage stocks and prevent overfishing while understanding the socioeconomic impacts of regulating fisheries both commercially and recreationally. I come to school with a smile on my face knowing that I will learn something today that may impact fisheries tomorrow. Looking back on where I have been able to go with a biological degree has been great but knowing where I am about to go in the future is even more amazing. If you can survive the Bering Sea in winter then I feel that you can survive anything.

This blog post is part of a series of stories written by RSMAS graduate students enrolled in the Spring 2012 Scientific Communications (RSM 545) course.

Sarah Stelter
Master of Professional Science: Fisheries Science
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SCUBA Diving Like James Bond

Little Salt Spring. Photo by Curt Bowen

Nothing wakes me up like the taste of sulfur water in the morning. Welcome to Little Salt Spring.

Little Salt Spring is a natural sinkhole and an important archeological site owned and operated by the University of Miami. Most people might think that spending a week in Little Salt Spring would only mean being dirty, considering that the living conditions consist of a trailer and a port-a-potty. However, my experience during my Scientific Diving class at the University of Miami was definitely worth roughing it for few days. I spent time learning amazing SCUBA diving techniques that most people only see on the big screen.

Dive team preparing for surface supplied air dive with the Florida Aquarium assistant.

Have you ever seen a movie like The Abyss or Deep Blue Sea where divers talk to people on the surface as they explore uncharted territory underwater? That’s exactly what we did. Florida Aquarium divers taught us how to use full-face masks with surface supplied air. With the full-face mask on we could talk to people on land and to our dive partner. Talking underwater was so much fun, but understanding each other at first was difficult since our breathing made us all sound like Darth Vadar because we were so excited. But surface supplied air is used for purposes other than reenacting classic Star Wars scenes. Research divers use surface supply to extend the amount of time they are able to spend diving because it eliminates air consumption restrictions, which is a limiting factor for underwater research.

Just when I thought I had learned the coolest dive technique, the professor brought out a new toy: underwater scooters. Researchers use scooters because they allow divers to cover a greater area while consuming less gas, making data collection more efficient. Once in our SCUBA gear, we clipped onto the scooter, pulled the trigger, and ZOOM! My body was being propelled through the water effortlessly as the lake bottom passed under me. All of a sudden I was in James Bond’s movie Thunderball racing around underwater by scooter. Thankfully, unlike James Bond we were not fighting a battle against underwater henchmen but learning how to dive with this new piece of equipment. Scooters have various speeds, from cruising to flying, so I spent my time flying! It made me never want to swim with fins again.

Between breathing surface supplied air with a full-face mask and diving with scooters, I hardly had time to notice the taste of sulfur in the water. Nowhere else but the University of Miami Rosenstiel School of Marine and Atmospheric Science could you find a class that spends a week diving like they do in the movies.

This blog post is part of a series of stories written by RSMAS graduate students enrolled in the Spring 2012 Scientific Communications (RSM 545) course.

Christina Vilmar
MPS: Tropical Marine Ecosystem Management
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Towed-Diver Surveys Provide Fantastic Photos of Reef Sharks

Rosenstiel School Ph.D. candidate, Marc Nadon, is making headlines today, for a study published in the journal Conservation Biology. As the lead scientist of an international collaboration, Marc and team have spent the last decade surveying reef shark losses in the Pacific Ocean, providing the first estimates on this subject matter. A scientist at the Joint Institute for Marine and Atmospheric Research (JIMAR) located at the University of Hawaii, Nadon and colleagues used a unique survey method, called ‘towed-diver surveys,’ which were designed specifically for the census of large, highly mobile reef fishes like sharks. The surveys involve paired SCUBA divers recording shark sightings while towed behind a small boat. This type of method allowed Marc and his team to capture some beautiful images of these reef sharks up close.

Read more about the survey and its results here.


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RSMAS Undergrad Gets Involved – Takes Full Advantage of Time at Univ. of Miami

Hi my name is Ian Chambers and I am a senior undergraduate marine science & biology major here at “The U!” Some of you may know me from Rho Rho Rho, or attending UMiami sporting events, or maybe just seeing me around campus. But what a lot of undergrads don’t realize is that I had the opportunity to be involved with many different things out at RSMAS in my 4 years.

I currently am working on an independent study in Dr. Michael Schmale’s lab, and my main objective is to characterize all the different cell lines that have been immortalized. Dr. Schmale’s lab is working to determine mechanisms responsible for the transformation of health cells to cancerous transmissible tumors in fish.

My research involves the use of fluorescent dyes on these tumor cell cultures, and imaging their DNA and mitochondria. I am keying in on differences of cells in order to describe and quantify the cancer lines. Above is one of my fluorescent images I’ve been working on, with the nuclei dyed green and mitochondria red.

Ian Chambers
Senior, Marine Science & Biology
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Video: Shark Research with RJD on Mysteriously Beached Lemon Shark

Last year, after a lemon shark was reported dead on a Florida beach, Director of the R.J. Dunlap Marine Conservation Program Dr. Neil Hammerschlag, and two Ph.D. students, Austin Gallagher and David Shiffman, conducted a necropsy on the shark.

This very short video teaches you basic anatomy and gives you a peak into the life of a lemon shark.

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