Math students study the effects of white syndrome diseases on coral 

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Six students presented their research concerning the effects of white syndrome diseases on Guam’s coral populations using mathematical modeling this summer as part of the 2022 Summer Joint Math Research Program showcase held on July 20, 2023.  

The students – four UOG undergraduates, one high schooler, and one recent graduate –  were part of the Guam NSF EPSCoR Summer Math Research Experience held at the University of Guam.  

The Summer Math Research Experience was held concurrently along with the NSA Research Experience for Undergraduates and the Young Scholars Research Experience in Math.  

Due to Typhoon Mawar, the eight-week program was condensed to six weeks this year. Despite the shortened timeframe, the students were able to familiarize themselves with new mathematical concepts and programming tools while helping each other overcome various challenges.  

“They would help each other a lot,” said JC Saul, a Guam NSF EPSCoR research assistant and UOG alum. “Whenever there was a part of the data that didn’t make sense, the other group would try to find out what’s missing. Even though their projects are different, they would still try to help each other.”  

Using data provided by UOG Marine Laboratory Director Dr. Laurie Raymundo, participants focused on modeling the infection rate of white syndrome diseases on coral as well as how factors such as water quality and temperature can impact infected coral.  

White syndrome refers to a group of coral diseases that cause acute tissue loss. During an outbreak of white syndrome, the disease eats away at coral tissue, exposing the white coral skeleton. This disease is different from coral bleaching, white also turns coral white. Coral bleaching stresses the coral, making them more susceptible to disease, but does not immediately kill them.  

“Dr. Raymundo and her team had been monitoring coral restoration plots and they had planted some Acropora aspera in February 2022 and did monthly monitoring. In May 2022, they noticed the plot had contracted white syndrome disease, so they were able to track the progress of the outbreak until unfortunately, everything died by the beginning of August,” said Dr. Leslie Aquino, chair of UOG’s Division of Mathematics & Computer Science.   

Acropora aspera is a species of staghorn coral, a type of reef-building coral that is largely affected by white syndrome diseases.   

“The hopes I have for our project is to bring some attention to coral diseases and the state that corals are in right now,” said Ian Galang, an undergraduate secondary education major with a focus on mathematics. “From what we’ve read, a lot of people misunderstand coral and classify them as nonliving organisms, but they play a very big part of the aquatic environment and right now, they need help.”  

Students make valuable connections through summer program

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Two undergraduate integrative biology majors gained research experience and explored different scientific fields through the NSF INCLUDES: SEAS Bridge to Ph.D. Program this summer.

Two undergraduate integrative biology majors gained research experience and explored different scientific fields through the NSF INCLUDES: SEAS Bridge to Ph.D. Program this summer.  

The NSF INCLUDES: SEAS Bridge Program aims to enhance participation of students from underrepresented in STEM through opportunities for research experience and mentorship. This year, the program was held from June 26 – 30, 2023 and was hosted by the University of Maryland Center for Marine & Environmental Science.  

“My experience with the Bridge to Ph.D. program was really great, I had so much fun and I met a lot of new people and I’m so glad I got the opportunity to go out there,” said Raianne Quichocho, a 2022 NSF SEAS research fellow.  

Over the course of their trip, they visited the Chesapeake Biological Laboratory at the University of Maryland, toured the Smithsonian Institute, and connected with members other hubs of the NSF SEAS Islands Alliance from Puerto Rico and the U.S. Virgin Islands.  

“This experience has taught me to not give up on my future as a scientist,” said Lynn Galang, a 2022 Guam NSF EPSCoR student researcher. “Talking to the graduate students has made me realize that even if I’m struggling with chemistry now, it doesn’t mean I’ll struggle with it later.”  

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Over the course of their trip, they visited the Chesapeake Biological Laboratory at the University of Maryland, toured the Smithsonian Institute, and connected with members other hubs of the NSF SEAS Islands Alliance from Puerto Rico and the U.S. Virgin Islands. “This experience has taught me to not give up on my future as a scientist,” said Lynn Galang, a 2022 Guam NSF EPSCoR student researcher. “Talking to the graduate students has made me realize that even if I’m struggling with chemistry now, it doesn’t mean I’ll struggle with it later.”

UOG grad student talks coral reefs at aquatic sciences conference

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University of Guam graduate biology student and Guam NSF EPSCoR Graduate Research Assistant Star Dressler presented her research at the 2023 Association for the Sciences of Limnology and Oceanography Aquatic Sciences Meeting held from June 4 – 9, 2023, in Palma de Mallorca, Spain.

University of Guam graduate biology student and Guam NSF EPSCoR Graduate Research Assistant Star Dressler presented her research at the 2023 Association for the Sciences of Limnology and Oceanography (ASLO) Aquatic Sciences Meeting held from June 4 – 9, 2023, in Palma de Mallorca, Spain.  

ASLO is an organization that fosters a diverse, international scientific community that creates, integrates, and communicates knowledge across the full spectrum of aquatic sciences.  

During the event, Dressler presented her research entitled, “Assessing the heterotrophic abilities of two scleractinian corals during thermal stress as a strategy.”   

“ASLO was awesome,” said Dressler. “I got to interact with scientists from all over the world. It was an oceanography and limnology-based conference, which means it covered both marine and freshwater topics. I was able to not only listen to everyone’s discussions about diverse topics, but also bring attention to coral reefs.”  

Along with her advisor, UOG Associate Professor of Oceanography Atsushi Fujimura,  Dressler also chaired a session called “Resilience in Coral Reef Ecosystems.” The session featured various scientists who discussed advancements in understanding resilience in the world’s coral reef ecosystems across species, population, and community levels.  

“I appreciated being able to connect with different scientists and receive a lot of information in such a short time. I would love to continue being a member of ASLO and going to their conferences,” said Dressler.  

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During the event, Dressler presented her research entitled, “Assessing the heterotrophic abilities of two scleractinian corals during thermal stress as a strategy.” “ASLO was awesome,” said Dressler. “I got to interact with scientists from all over the world. It was an oceanography and limnology-based conference, which means it covered both marine and freshwater topics. I was able to not only listen to everyone’s discussions about diverse topics, but also bring attention to coral reefs.”

UOG graduate student studies algae at the University of Washington  

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Grace Jackson, a University of Guam graduate biology student and Guam NSF EPSCoR graduate research assistant, gained research experience this summer through a course held at the Friday Harbor Laboratory at the University of Washington from June 11 to July 14, 2023.  

The class was called Marine Botany: Diversity and Ecology and covered classical and contemporary methods for identification, classification, and phylogenetic analysis of algae. Taught by Thomas Mumford, Ph.D., and D. Wilson Freshwater, Ph.D., the five-week course focused on the diversity of algae species found around San Juan Island.  

“I was interested in taking this class because I am studying crustose coralline algae for my thesis,” said Jackson, who is under the mentorship of UOG Professor of Marine Biology, Tom Schils. “I thought that learning about algae from a different ecosystem would give me a broader perspective and appreciation for the work I am doing in Guam.”  

Over the course of the program, Jackson explored the species-rich intertidal habitats around San Juan Island. She also worked on a research project that focused on identifying San Juan Island’s different species of crustose coralline algae, which are rock-hard calcareous red algae that can be found at intertidal rocky shores or coral reefs.  

“Forming my group and getting them excited about our topic and coaching them along the way taught me a lot about science communication,” said Jackson. “Writing the research report also fostered my writing skills. This whole experience has given me a greater appreciation for the work I have been doing in Guam. I can’t wait to get back in the lab and practice what I have learned.”

Two UOG students explore turning seawater into clean energy 

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Anna Mallari and Merry Remetira, two undergraduate civil engineering students from the University of Guam, are researching how to convert seawater into renewable energy as part of a collaboration between UOG and the U.S. Department of Energy’s (DOE) Pacific Northwest National Laboratory (PNNL) to establish a diverse and equitable recruitment and retention program to build UOG and Guam’s future energy workforce.  
 
The program they are a part of is called BES-RENEW, or Basic Energy Sciences –  
Reaching a New Energy Sciences Workforce, which works to increase participation of underrepresented groups in clean energy research.  
 
As part of the program, Mallari and Remetira will receive training along with UOG Assistant Professor of Chemistry John Limtiaco at the PNNL campus in Richland, Washington from June 2nd to August 11th, 2023. The laboratory is a leading center of technological innovation in sustainable energy.  

“I’m excited because we will be learning new science that will be beneficial to the island once we come back. I hope that me and Anna will get the necessary tools that we can get there and apply it here when we want to further our careers,” said Remetira.  

Mallari is a 2023 Guam NSF EPSCoR undergraduate student researcher while Remetira is from the 2021 cohort.  

For those looking into applying for opportunities like BES-RENEW, Mallari said it’s important for students to try new experiences.  

“It’s good to diversify your background and be a well-rounded engineer,” said Mallari. “EPSCoR has taught me that since we are in college, we’re not supposed to know everything. We’re supposed to learn. I think that’s a very good lesson to take with me for the rest of my life.”  
 

UOG researcher explores the biodiversity of crabs in the Red Sea and Persian Gulf  

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UOG Curator of Crustacea Robert Lasley went on two research expeditions to conduct biodiversity surveys within the Red Sea and the Persian Gulf.  

With support from the King Abdullah University of Science and Technology in Saudi Arabia, Lasley joined a team of biologists and spent two weeks at sea collecting specimens such as crabs, mollusks, and worms from May 3 to May 27, 2023.  
 
During this expedition, Autonomous Reef Monitoring Structures (ARMS) were deployed. ARMS are stacks of plates that mimic the sea floor. They are used to recruit local species over a set period of time to gauge and compare marine biodiversity among habitats, islands, and even ocean basins. Lasley and his colleagues will eventually deploy ARMS in Guam. 

During his time in Abu Dhabi from June 16 to June 29, Lasley explored the Persian Gulf with a team of scientists as part of a trip sponsored by Archireef, a Hong Kong-based company that builds 3D-printed reef structures to restore degraded coral reefs.  

The specimens gathered from these expeditions will be placed in the Guam Ecosystems Collaboratorium for Corals and Oceans (GECCO) Biorepository, a physical and cyber warehouse of records and images operated by the Guam NSF EPSCoR program. 

“I’m really interested in crab biodiversity and biogeography in general,” said Lasley. “The Indo-West Pacific – which includes Guam, the Red Sea, and the Persian Gulf – is this massive biogeographic region and some species are connected throughout it. Any specimens I collect anywhere are good to bring to our collection for comparative material because as we do research, we need to compare specimens from Guam but also specimens from elsewhere.”  

Between the two trips, Lasley collected more than 500 specimens, which include around 100 to 200 species of crabs.  

“We have already found a new record and, possibly, a new species from the Red Sea,” Lasley said. “We are bound to find more as I examine the specimens more thoroughly.”  

UOG grad student explores the small world of meiofauna

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Sarai Vega, a biology graduate student from the University of Guam was one of 13 participants selected worldwide to attend the 2023 Dauphin Island Sea Lab Meiofauna Diversity and Taxonomy Workshop in Alabama from May 10 to May 19, 2023.  

Meiofauna are invertebrates that live in both marine and freshwater environments that are small enough to pass through a 0.45 micrometer mesh. They live in between the grains of sand and mud on the seafloor and riverbeds. Copepods, flatworms, and nematodes fall under meiofauna.  

Because the meiofauna group is broad, the field remains understudied despite its ecological importance.  
 
“Meiofauna have a high turnover, so they reproduce very fast and they don’t live very long,” said Vega. “Because of this, they are a food source to bigger animals like crabs and sea cucumbers. In turn, those bigger animals are food for other animals. If this group didn’t exist, it would affect that chain.”  

Over the course of the workshop, Vega was able to connect with meiofauna experts from around the world as well as learn different collection and sampling techniques for DNA metabarcoding of meiofauna communities around Dauphin Island.  

As a Guam NSF EPSCoR Graduate Research Assistant, Vega became interested in researching meiofauna to incorporate it into her thesis project, which focuses on studying the formation of sediment plumes in the Pago Watershed in central Guam and how they affect the island’s environment.  

Sediment from soil erosion due to fires and invasive species such as wild pigs and deer can wash into rivers, streams, and bays during rainfall. Once in the water, these plumes of sediment can pollute bodies of water and smother coral reef systems.   

“These sediment plumes consist of very fine sediment,” said Vega. “I want to understand what’s happening and how they affect meiofauna.”  

Vega said that her experience attending the workshop has benefited her development as a scientist.  

“Being in the workshop was very hard in the beginning, but I got to learn a lot by asking other people how they’d process their samples so by the end of the workshop, I was faster,” said Vega. “As a scientist, I feel like if there’s any new skill I would like to have, I’ll just have to practice and I’ll get better. Learning is infinite and it’s exciting to know that.”  

Tramonte defends master’s thesis  

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On June 13, 2023, Guam NSF EPSCoR Graduate Research Assistant Carlos Tramonte defended his Master of Science in Biology thesis at the University of Guam Marine Laboratory.  

Tramonte’s thesis was titled, “Coral Species Replacements on Guam’s Reef Flats: Investigating the Role of Symbiodiniaceae Dynamics and Environmental Stressors.” 

His chairperson was Dr. Bastian Bentlage. Along with Bentlage, Tramonte’s committee consisted of UOG Marine Laboratory Director Dr. Laurie Raymundo, and Dr. Sarah Davies from Boston University.   

Following the completion of his graduate program, Tramonte will pursue doctoral work at University of Hawaiʻi at Mānoa with the support of the Graduate Research Fellowship Program from the National Science Foundation.   

Tramonte will be working on mesophotic reef systems in American Samoa and will be looking into coral physiology and environmental DNA (eDNA). 

UOG alum takes part in prestigious marine biology program 

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University of Guam alum Gabriella Prelosky is one of 15 students selected nationwide to participate in the highly competitive Woods Hole Diversity Partnership Education Program (PEP) in Massachusetts from June 3 to August 12, 2023.  

PEP is a 10-week multi-institutional program between the six Woods Hole scientific institutions and the University of Maryland Eastern Shore that focuses on giving underrepresented groups in marine and ocean sciences practical experience and real-world training in marine and environmental science.   

During her time in the program, Prelosky will participate in a variety of activities such as attending a four-week course titled “Oceans and Environmental Sciences: Global Climate Change,” experience life on a research cruise aboard the Research Vessel Tioga, attend lectures, go whale watching, as well as go on field trips with her cohort.  

Over the course of the ten-week internship, Prelosky will study the development of electroreceptors in shark embryos under the mentorship of Dr. Andrew Gillis and Dr. Michael Palmer.  

“I feel so incredibly honored to have been accepted into this program as the first University of Guam student to attend,” said Prelosky. “I was so lucky to have been one of the 15 students picked for this incredible and competitive program.”  

Prelosky recently graduated from the University of Guam with a B.S. in Biology in May 2023. Throughout her undergraduate experience, she accomplished a number of achievements such as participating in the first-ever National Science Foundation Inclusion Across the Nation of Communities of Learners of Underrepresented Discoverers in Engineering and Science (INCLUDES): Supporting Emerging Aquatic Scientists (SEAS) Bridge to Ph.D. program held at the Pennsylvania State University in June 2023 and naming two potentially new species of diatoms as a 2021 NSF INCLUDES: SEAS Islands Alliance undergraduate student research fellow. 

“My time in the INCLUDES program helped me to not only be more confident in who I am but allowed me to gain skills that I believe “amped” up my application skills, writing skill and general lab skills,” said Prelosky. “INCLUDES helped me gain a sense of feeling in the scientific community, and has allowed me to become proud of the scientist I know I am.” 

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Over the course of the ten-week internship, Prelosky will study the development of electroreceptors in shark embryos under the mentorship of Dr. Andrew Gillis and Dr. Michael Palmer. Prelosky is holding a chain catshark in this photo, a species she will work with for her research project.

UOG student sets sail on deep-sea research voyage  

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University of Guam undergraduate communication major Gabriella Piper was part of the first cohort of students and educators from the Science, Technology, Engineering, and Math Student Experiences Aboard Ships (STEMSEAS) program aboard the Exploration Vessel (EV) Nautilus, which set sail for Sidney, British Colombia from Honolulu, Hawa’i on June 15, 2023. 

STEMSEAS is a National Science Foundation-supported program that provides ship-based exploratory experiences for undergraduates from diverse backgrounds aboard research vessels to engage in geoscience and oceanography activities.  

The EV Nautilus is owned by Ocean Exploration Trust, which is under the direction of Robbert Ballard, the researcher known for finding the wreck of the Titanic.   

The 10-day seafloor mapping expedition was sponsored by Ocean Networks Canada.  

Piper joined a cohort of 12 students and instructors and expressed her excitement about this opportunity to learn more about science communication.  

“I still cannot believe it,” said Piper. “It is a little surreal to be honest. When I first applied, I did not expect to get in because of how many people apply to this program every year, so getting the letter of acceptance felt like such a huge accomplishment.”  

Piper found out about the STEMSEAS program during her time as a 2022 Guam NSF EPSCoR undergraduate student researcher when she attended the 2022 Society for the Advancement of Chicanos/Hispanics and Native Americans in Science Conference in Puerto Rico last October. On the way to the event, she was able to connect with a STEMSEAS alum and then later discussed the program with outreach representatives at the conference.  

“My experience with the Student Research Experience Program was incredible and during it I got to network with so many wonderful and unique individuals who helped me discover my passion for science communication,” said Piper. “It is because of the program and the individuals within it that I was able to find this opportunity and learn about the different ways in which I can make a meaningful contribution to the STEM community.”  

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