Research - Guam EPSCoR

October 31, 2024December 6, 2024

Dr. Terry Donaldson: From cold Lake Michigan to sunny Guam

Everyone knows that Terry Donaldson, PhD, is the principal investigator and project director of Guam NSF EPSCoR, but not everyone is aware of his journey as an ichthyologist. When did this interest in marine biology begin?

For Donaldson, it began as a child growing up by the cold lakes of Michigan and following the adventures of Jacques Cousteau through books and television series. It was no surprise that he developed an admiration for fish, having spent a great deal of his childhood snorkeling to find them or catching them with his grandfather.

Donaldson earned his doctorate in Ichthyology which led to him studying various species around the world including New Zealand, Japan, French Polynesia, the Solomon Islands and Guam, where he has been serving the University of Guam’s Marine Lab for over many years.

“Fish can be really beautiful to look at,” said Donaldson, noting that he can enjoy just watching and observing the sea creatures, from physical characteristics to their behaviors. Astounded by the sheer diversity – thousands of species, that we know of – he finds fulfillment in the discovery of new species as well as new observations on existing ones.

One of his most recent publications details the communication behaviors of squirrelfish, which reflects his interest in bio acoustics that stems from undergraduate studies at Michigan State University.

The paper, titled “Production of sounds by squirrelfish during symbiotic relationships with cleaner wrasses,” observes nine species of Holocentridae (squirrelfish) and how they use acoustic signals to communicate in their interactions with cleaner wrasses.

Throughout this life-long journey in Ichthyology and marine biology, Donaldson has also ended up in several leadership positions including principal investigator and project director of Guam NSF ESPCOR and the former head of UOG’s Marine Laboratory.

Most recently, he was elected as President of the National Association of Marine Laboratories in January of this year.

With decades of experience in research and leadership, he subscribes to the belief that learning is a lifelong endeavor.

“Every day I come through the door and I learn something new. Often people in this building teach me or just (through) interacting with other people, I learn something new,” he said nothing that Guam NSF EPSCoR’s successes are not just from his leadership but because he has a talented team working with him.

“Don’t be afraid to get your feet wet!” Donaldson said, offering a piece of advice to those just starting their careers.

He believes in the importance of trying new activities and cultivating interests that can be useful years down the line. This belief has certainly proven true for this scientist, whose love for marine animals started well before his own career took off.

October 29, 2024November 8, 2024

Bioblitz survey finds false spider crab in Guam

Among over a thousand species that were found during the University of Guam’s first Bioblitz is the Elamena castanea, a type of false spider crab.

While the Elamena castanea superficially looks like one, this species is not actually a spider crab and belongs to the Hymenosomatoidea superfamily which means they aren’t even related to true spider crabs.

Originally discovered in the Philippines, this is the first time that the species has been observed here in Guam even though the area has been sampled numerous times through the decades.

Since this discovery, several more crab specimens have been found on the reef flat behind the UOG Marine Lab.

“It shows you how much diversity there is out there,” said Robert Lasley, PhD, UOG Biorepository crustacea curator. “Elamena castanea specimens were collected under rocks or in seaweed in shallow depths – usually less than 1-2 meters.”

Lasley notes that even after the three-week biological survey, there are still hundreds, possibly even thousands, of marine species that remain undocumented in the waters off Guam.

“Honestly, though, we find new records all the time, often without noticing it,” he said. “It takes a lot of work at the microscope and digging through literature to confirm if something is a new species or new record.”

Along with the Elamena castanea, other findings included new records of different species of isopods, nudibranchs, nemerteans, gobies, and shrimps.

It has been estimated that between 10 to 15 percent of the specimens collected during the BioBlitz are either new records or entirely new species.

Since February, the Biorepository team has been developing and cataloging the specimens and uploading the specimen data to the Biorepository database.

Soon, they will be able to loan out specimens to researchers so that they can be further examined and new information can be reported.

The team is also planning future biological surveys with more targeted searches for specific organisms, using the information collected during this first Bioblitz.

In addition, they intend to organize surveys in other places throughout the region, such as Palau and the Marshall Islands.

Through these surveys, researchers will be able to learn more about what organisms call the vast ocean home, including the Elamena castanea, which will also help the community learn how to preserve and protect them.

October 26, 2024November 25, 2024

Collaborative study yields new research instrument

After a detour to Alabama following the 28th NSF EPSCoR National Conference in Nebraska, Bastian Bentlage, PhD, Associate Professor of Bioinformatics, brought home a newly developed scientific instrument to aid in coral research.

Bentlage, with accompanying graduate research assistant Nikko Galanto, made the journey out to the Dauphin Island Sea Lab, located on Alabama’s Gulf Coast. The lab has been developing the build and circuitry of a new scientific research instrument, as well as the computer models and programs needed to run it. This instrument measures the performance of a coral’s photosystem under heat stress using fluorescent light.

“If you shoot a blue light at a chloroplast, like let’s say an algal cell, not all of the energy from the light is actually seamlessly converted right into making sugars and by extension energy,” Bentlage explained. “So, you can actually measure the amount of fluorescence that is produced and by extension then can make some inferences about the underlying health of the chloroplast.”

With this new method, the researchers hope the instrument will help to identify corals that are most resilient to increasing sea surface temperatures so they may be prioritized for reef restoration.

This particular research project is conducted in collaboration with Kenneth Hoadley, Ph.D., from the University of Alabama and Mark Warner, Ph.D., from the University of Delaware, with Bentlage and Marine Lab director Laurie Raymundo, Ph.D., representing the University of Guam.

The connection stemmed from another proponent of the research project Victor Bonito, Ph.D., director of Fiji-based non-profit Reef Explore Fiji, Ltd. The universities first approached Bonito to write a grant to help expand their existing research. As a graduate of the UOG Marine Lab, it was through Bonito’s recommendation that the UOG Marine Lab be sought out for collaboration.

“It was really interesting for me to visit, to see a different approach to science,” Bentlage mentioned. “I’ve never really thought about, or didn’t know really where you would start to work with someone who was actually in that space where, ‘hey, we’re actually developing the technology to measure certain things.’”

The two universities plan to visit Guam next year to see what results the instrument has found, as well as to conduct their own research and experiments.

October 10, 2024October 11, 2024

Lasley ready to bring crab education to students on Guam in latest CHalan Deskubre

Crabs have always had a special place in Robert Lasley’s heart, and now he is sharing that love to help educate students on Guam.

As a part of the placed-based educational magazine CHalan Deskubre, which is supported by Guam NSF EPSCoR, Lasley has lent his “crab genius” so the children of the island may learn more about the crustaceans and what they do for our ecosystem.

According to CHalan Deskubre Editorial Coordinator Maria Louella Losinio, who also works on the EPSCoR Science Communication Team, Lasley’s gift for conveying science in an easily digestable way makes him a great fit for the magazine.

“The target audience for this magazine is school aged people from kinder through twelve grade and something we can all agree on is the intrigue they all share about animals around Guam,” said Losinio. “Dr. Lasley is able to bring information about the crabs to them in ways that they not only learn from, but are entertained by too.”

Lasley will be featured in the second issue of the magazine, which focuses on Sustainable Development Goal #14 – Life Below Water.

The issue is set to launch this month and will be available to students all around Guam.

September 10, 2024October 10, 2024

Coral research could have big implications for Guam’s future

Research by Reilly Kleven at the University of Guam (UOG) has revealed the remarkable growth potential of branching Lithophyllum coralline algae, a vital component of Guam’s coral reefs.

Kleven is a Graduate Research Assistant with the Guam National Science Foundation’s (NSF) Established Program to Stimulate Competitive Research (EPSCoR) at UOG.

Kleven’s research, conducted under the guidance of Tom Schils, Ph.D. of the UOG Marine Labratory, focused on quantifying the growth rates of these algae in various reef habitats around the island. By utilizing advanced 3D scanning techniques, Kleven was able to measure the growth of individual algae samples over an extended period.

“Nongeniculate coralline algae are one of the most abundant calcifiers on Guam’s reef. They provide a variety of ecosystem services for reef environments. They help build and stabilize reef framework by depositing calcium carbonate in the form of magnesium calcite skeletons,” explained Kleven. “They act as important binders, decreasing the likelihood of structural collapse by reinforcing caves and cavities. Their skeletons further contribute to the resilience and recovery potential of reefs, providing protection from disturbances such as bio erosion and tsunamis.”

One of the most significant findings of the study was the exceptional growth rates observed in Lithophyllum algae from Pago Bay, Guam. These algae demonstrated remarkable resilience, growing at a rate that far exceeded previous estimates for coralline algae in tropical regions.

Kleven’s research also highlighted the importance of environmental conditions on algal growth. While Pago Bay offered optimal conditions for Lithophyllum growth, factors such as nutrient levels, sediment output, and water temperature were found to significantly influence growth rates in other areas, such as Togcha Bay.

These findings have significant implications for understanding the resilience of Guam’s coral reefs and their ability to recover from disturbances. As climate change continues to threaten coral ecosystems, the growth potential of lLithophyllum algae offers hope for future reef conservation efforts.

“As coral bleaching events become more frequent and severe the significance of coralline algae increases. These algae are likely to play a crucial role in preserving tropical reef carbonate structures as environmental change continues,” added Kleven.

Kleven’s research marks a significant contribution to the field of marine biology and provides valuable insights into the complex dynamics of coral reef ecosystems at a time when many see the importance of the protection of our reefs.

July 24, 2024July 24, 2024

Guam NSF EPSCoR supports sustainable fisheries through fish maturity workshop

From May 28 to June 14, 2024, graduate students from the University of Guam as well as scientists from Saipan attended a workshop called Jungle Histology: Fish Gonad Analysis at the UOG Marine Laboratory to learn how to determine the sex and maturity of reef fishes.

“At the most basic level, one of the things that people seem to understand is that it’s a good idea not to catch a fish and eat it until it’s had the chance to reproduce,” said Ken Longenecker, Ph.D., an associate researcher at Bishop Museum and one of the workshop’s facilitators. “But we don’t know the size at which fish reach maturity for about 83 percent of exploited species worldwide.”

Histology is a discipline of biology that examines the microscopic anatomy of biological tissues. In the case of fish histology, the gonads of a specimen are extracted, processed, and then examined with a microscope.

“There are resources here I don’t have back home, so I look forward to learn what I can at these workshops and bring this knowledge back and teach the people there,” said Naomi Billimon, a student at the Northern Marianas college in Saipan and an intern at the CNMI Division of Fish and Wildlife.

From May 28 to June 14, 2024, graduate students from the University of Guam as well as scientists from Saipan attended a workshop called Jungle Histology: Fish Gonad Analysis at the UOG Marine Laboratory to learn how to determine the sex and maturity of reef fishes.

This workshop was the final segment of the two-part, weeklong Fish Life History Workshop series funded by Guam NSF EPSCoR to enhance regional research capacity within Micronesia and improve the management of fisheries within the Pacific.

Three visiting scientists from Hawai’i facilitated the session: Ken Longenecker, Ph.D., an associate researcher at Bishop Museum; Ross Langston, Ph.D., a professor of biology at Windward Community College; and Erik Franklin, Ph.D., an associate research professor at the Hawai’i Institute of Marine Biology at the University of Hawai’i at Manoa.

According to Longenecker, knowing whether a fish is mature is essential to the sustainability of fisheries.

“At the most basic level, one of the things that people seem to understand is that it’s a good idea not to catch a fish and eat it until it’s had the chance to reproduce,” said Longenecker. “But we don’t know the size at which fish reach maturity for about 83 percent of exploited species worldwide.”

Histology is a discipline of biology that examines the microscopic anatomy of biological tissues. In the case of fish histology, the gonads of a specimen are extracted, processed, and then examined with a microscope.

Typically, histological practices require working in a laboratory with specialized equipment, but according to Langston, the method of jungle histology is unique because its needs are minimal.

“We can do this work with just a few batteries, so we don’t need much in the way of infrastructure,” said Langston.

Bolstering regional research capacity
Workshops like this one are crucial in supporting communities within the Pacific who rely on their fisheries for sustenance.

“For a lot of places like Saipan and Guam and other areas in the Pacific, fish are the primary or even the only source of protein that some people have in their diets, so it’s extremely important that we are able to give them data so that they can confidently manage their harvest year after year without depleting their stocks,” said Franklin.

Improving regional research capacity allows scientists to answer questions so that they can serve the interests of their communities and even teach other researchers skills that they have learned.

“There are resources here I don’t have back home, so I look forward to learn what I can at these workshops and bring this knowledge back and teach the people there,” said Naomi Billimon, a student at the Northern Marianas college in Saipan and an intern with the CNMI Division of Fish and Wildlife.

July 24, 2024July 24, 2024

Guam NSF EPSCoR bolsters regional research capacity through fish ageing workshop

On Monday, May 21, 2024, University of Guam graduate students, members of the Guam Green Growth Conservation Corps, as well as visiting scientists from Saipan, Palau, and Hawai’i convened at the UOG Marine Laboratory to learn how to determine the age of fish.

To determine a fish’s age, scientists extract a bonelike structure called an otolith within its ear and count its growth rings.

“Otoliths grow throughout time just like a tree. If you cut one in half, you can count the rings that are being laid down every single year,” said Brett Taylor, Ph.D., the workshop facilitator and an assistant professor of fisheries ecology at UOG.

Many of the participants, such as Christina Muller-Karanassos, a researcher from the Palau International Coral Reef Center, had varying levels of experience regarding extracting, processing, and reading otoliths. “I hope I can use this information in the future because we want to collect life history information for more fish species,” said Muller-Karanassos. “Nobody where I work really does any fisheries work, so I hope I’ll be able to pass on the knowledge to some people there.”

On Monday, May 21, 2024, University of Guam graduate students, members of the Guam Green Growth Conservation Corps, as well as visiting scientists from Saipan, Palau, and Hawai’i convened at the UOG Marine Laboratory to learn how to determine the age of fish.

The fish ageing component was the first segment of the two-part, weeklong Fish Life History Workshop Series funded by Guam NSF EPSCoR to improve regional research capacity within Micronesia.

To determine the age of a fish, scientists extract a bonelike structure called an otolith from its ear and study its growth rings.

“Otoliths grow throughout time just like a tree. If you cut one in half, you can count the rings that are being laid down every single year,” said Brett Taylor, Ph.D., the workshop facilitator and an assistant professor of fisheries ecology at UOG. “In the hottest part of the year, these rings are growing the fastest, and in the coldest part of the year, they’re growing slower and creating a denser profile along the banded structures.”

According to Taylor, around 300 fish species are harvested in Guam. Knowing how to ascertain the age of a fish is vital to habitat conservation, fisheries management, and maintaining the perpetuation of local fishing practices and culture.

Many of the participants, such as Christina Muller-Karanassos, a researcher from the Palau International Coral Reef Center, had varying levels of experience regarding extracting, processing, and reading otoliths.

“I hope I can use this information in the future because we want to collect life history information for more fish species,” said Muller-Karanassos. “Nobody where I work really does any fisheries work, so I hope I’ll be able to pass on the knowledge to some people there.”

As part of the workshop, participants gained experience extracting otoliths from a variety of reef fish species at different life stages to hone their skills.

“The next part, which will be taught by our colleagues from Hawaii, will cover the histology of fish gonads. These workshops are putting together the two data pillars of life history information which are how old the fish are and what their maturity status is. When you put those two elements together, you can piece together the biology of the species,” said Taylor.

July 23, 2024July 24, 2024

Visiting scientists enrich Guam’s local community through research symposium

As part of the University of Guam’s first Bioblitz, an event focused on finding and identifying as many species as possible in a place over a set period, a team of international scientists engaged the island’s local community through a mini research symposium held on Friday, February 16, 2024.

These scientists, who hail from the United States, Italy, and Japan, held a series of presentations concerning organisms such as mollusks, worms, shrimps, and other invertebrates to increase local research capacity and generate interest in these under-studied fields.

One of the presenters was Florida Museum Curator of Invertebrates Gustav Paulay, Ph.D., who formerly served as the director of the UOG Marine Laboratory. “UOG sits in one of the most diverse areas and has this rich tradition of looking at organismal diversity. As a result, this institution is one of the centers of this work,” said Paulay. “We know what we know now fairly well because of a lot of effort done by a lot of people who have documented what they have described.”

As part of the University of Guam’s first Bioblitz, an event focused on finding and identifying as many species as possible in a place over a set period, a team of international scientists engaged the island’s local community through a mini research symposium held on Friday, February 16, 2024.

Due to climate change, development, pollution, and other factors that contribute to habitat loss, the world is facing a biodiversity crisis. The first step in addressing this issue involves developing an understanding of what lives in the biosphere, the parts of the world where life exists, and how they function.

These scientists, who hail from the United States, Italy, and Japan, held a series of presentations concerning organisms such as mollusks, worms, shrimps, and other invertebrates to increase local research capacity and generate interest in these under-studied fields.

One of the presenters was Florida Museum Curator of Invertebrates Gustav Paulay, Ph.D., who formerly served as the director of the UOG Marine Laboratory.

“It can be disheartening to get into the water after a couple of decades and see what has happened to the reef,” said Paulay.” Some parts are great, some parts not so much. We are going through a biodiversity crisis and one thing that scientists can do about is at least get an idea of what the biosphere is like before it changes any further.”

During his time at UOG, Paulay spent years cataloging the diversity of invertebrates around Guam. The Bioblitz, supported by Guam NSF EPSCoR, was meant to expand the existing knowledge of Guam’s marine ecosystems to inform future management efforts and apply that knowledge to other kinds of studies.

“UOG sits in one of the most diverse areas and has this rich tradition of looking at organismal diversity. As a result, this institution is one of the centers of this work,” said Paulay. “We know what we know now fairly well because of a lot of effort done by a lot of people who have documented what they have described.”

July 23, 2024October 9, 2024

UOG scientists find new marine biological records and species

Following a three-week series of biological surveys, scientists from the University of Guam Marine Laboratory along with an international team of researchers estimate that they have collected hundreds of new marine biological records and species combined from around the coasts of Guam.

From the southern coast of Guam almost up to Ritidian, the researchers surveyed around 50 sites through dives, intertidal walks, and snorkeling from February 2 - 22, 2024 and collected organisms such as crabs, shrimps, worms, and mollusks.

One of the notable findings from the Bioblitz includes a new record of a false spider crab found near the UOG Marine Laboratory. (Photos courtesy of Dr. Robert Lasley and Diana Noto)

Following a three-week series of biological surveys, scientists from the University of Guam Marine Laboratory along with an international team of researchers estimate that they have collected hundreds of new marine biological records and species combined from around the coasts of Guam.

A Bioblitz is an event focused on finding and identifying as many species as possible in a place over a set period. This Bioblitz was supported by the university’s Guam National Science Foundation EPSCoR grant, which focuses on studying the biodiversity of marine life in Micronesia and how climate change affects the region.

From the southern coast of Guam almost up to Ritidian, the researchers surveyed around 50 sites through dives, intertidal walks, and snorkeling from February 2 – 22, 2024 and collected organisms such as crabs, shrimps, worms, and mollusks.

Over a thousand species were collected. According to UOG Biorepository Curator of Crustacea, Dr. Robert Lasley, an estimated 10 to 15 percent are new species or new records for Guam. A new biological record refers to an organism that has never been recorded within a geographic area.

“The findings from this Bioblitz are a testament to the University of Guam’s status as a premier research hub serving the Micronesian region,” said UOG President Anita

Borja Enriquez. “Through collaboration, dedication, and their commitment to discovery, these researchers have helped uncover the vast biodiversity living in the waters and sands of our island.”

Notable findings from the Bioblitz include:

A new record of a false spider crab found near the UOG Marine Laboratory
71 new records of amphipods, a small shrimp-like crustacean
An estimated 46 new records of ribbon worms
Rare species of mollusks and gobies that live in symbiosis with a shrimp that inhabits underground burrows in the reef flats of Guam

Representatives of each species collected during the Bioblitz will be housed at the Guam NSF EPSCoR Guam Ecosystems Collaboratorium for Corals and Oceans Biorepository, a collection of marine fauna and flora that serves as an archive of the biodiversity found within the Micronesian region.

“After many long nights at the marine laboratory carefully processing specimens, these scientists have contributed immensely to our knowledge of this region’s ecosystems,” said Guam NSF EPSCoR Principal Investigator Dr. Terry Donaldson. “Through the Biorepository, we are able to share these findings with fellow researchers and work together to learn more about the world around us.”

Some specimens may be loaned to other scientists so that they can be examined further. The Biorepository team is partnering with Dr. Christopher Meyer from the National Museum of Natural History at the Smithsonian Institution to get all of the species DNA barcoded for identification.

Due to factors that impact marine ecosystems such as climate change, pollution, changing currents, and development, biological surveys serve as the first step towards preserving these ecosystems and the organisms that call them home.

“Right now, we’re experiencing a biodiversity crisis. We’re losing organisms and species very fast,” said Lasley. “How can you protect what you don’t know exists? It’s important to do this kind of work to capture this baseline data of what organisms are out there and where they live so we can try to build a foundation of knowledge that we can use to protect them.”

December 27, 2023December 27, 2023

UOG receives national STEM recognition

UOG 2023 SACNAS National Diversity in STEM (NDiSTEM) Conference delegation pose for a picture after being recognized as the 2023 Undergraduate Chapter of the Year

Dr. Austin Shelton speaking among fellow 2023 SACNAS National Diversity in STEM (NDiSTEM) Conference panelists

Dr. Austin Shelton, UOG President Dr. Anita Borja Enriquez, Emily Wendte, Abby Crane, & Remedios Perez at the Guam Green Growth Makerspace & Innovation Hub booth

Remedios Perez & Tonya McDaniel speak to a curious bystander about their booth

Aurienne Cruz presenting to curious passerby at 2023 SACNAS National Diversity in STEM (NDiSTEM) Conference

Nathan Paz showcases to attendees of 2023 SACNAS National Diversity in STEM (NDiSTEM) Conference

The UOG SACNAS Student Chapter received the award at this year’s SACNAS National Diversity in STEM (NDiSTEM) Conference. The event, a cornerstone in fostering diversity in Science, Technology, Engineering, and Mathematics (STEM), took place in Portland, Oregon.

A total of 48 attendees from UOG participated in NDiSTEM, which stands as the largest multidisciplinary and multicultural STEM diversity event in the United States.

UOG President Anita Borja-Enriquez, DBA, a member of the conference delegation, said, “UOG takes immense pride in our presence at the SACNAS NDiSTEM Conference. This gathering not only strengthens our commitment to fostering inclusivity but also emphasizes the vital role of diverse perspectives in shaping the future of science and innovation.”

Throughout the conference, participants actively attended workshops, showcased their research, and established connections with officials from academia and industry nationwide, creating valuable research and career opportunities.

Another significant achievement was the significant number of student presenters from the UOG delegation. Eighteen student attendees from Guam, representing nearly half of the total UOG delegation, delivered presentations at the conference.

18 students from Guam presented their research and took home these awards:

Co-principle investigator for Education and Workforce Development for Guam NSF EPSCoR, Austin Shelton, PhD, also participated in the conference. He is currently an elected member of the SACNAS National Board of Directors and serves as the faculty co-advisor, along with UOG Associate Professor Cheryl Sangueza, for the UOG SACNAS Student Chapter.

“As we immerse ourselves in the vibrant atmosphere of learning and collaboration at the SACNAS NDiSTEM conference, we are not just attendees; we are catalysts for a more inclusive and equitable future in science. Our presence echoes our university’s dedication to shaping a world where opportunities in STEM are accessible to everyone,” Shelton said.

Britney Sison, president of the UOG SACNAS Student Chapter, said, “I am extremely proud and humbled that SACNAS UOG has received the award. It is a testament to the hard work and dedication of our current as well as previous leaders, members, and advisors who laid a strong foundation for our organization.”

Sison added, “This award means a lot to us, and I hope it inspires future students to continue the mission of SACNAS – to support underrepresented groups in their pursuit of degrees and careers in STEM and to encourage others to bring their culture and whole selves into the process.”

Meanwhile, Sabrina Zhi, vice president of the UOG SACNAS Student Chapter, said the award demonstrates collective support from many past and present UOG students to highlight their resilient attitude towards the advancement of representation for the Pacific Island community. “I hope through this award, SACNAS UOG can continue to inspire and support future generations of Guamanian STEM-ists, as it has done for me,” Zhi said.

Celebrating its 50th year, SACNAS fosters the success of underrepresented Americans – from college students to professionals – in attaining advanced degrees, careers, and leadership positions in STEM. It is the largest multicultural and multidisciplinary STEM diversity organization in the United States, serving more than 20,000 students and professionals.

The attendees participated in the conference through support provided by the Guam NSF EPSCoR and NSF INCLUDES SEAS grants and travel scholarships from SACNAS, Chapter Officer Leadership October Retreat (COLOR), and the Research Corporation of the University of Guam.