The University of �鶹��ý at Mānoa (CTAHR) is reopening the (ADSC). Local farmers will once again have access to soil and plant testing here in �鶹��ý at a reasonable cost, instead of sending samples to the U.S. continent.

The center’s reopening also allows CTAHR to offer free soil and plant testing through July 21, 2026 to farmers whose land and crops were affected by Kona low flooding in March and April.

Every affected farmer can submit up to three free samples for each of the following services:

• Soil nutrient analysis: To determine if essential minerals were leached.
• Plant tissue nutrient analysis: To assess the current nutrient uptake and health of surviving crops.
• Plant disease diagnostics: To identify plant pathogens/outbreaks that may impact crops following flooding.
• Insect identification: To monitor for shifts in pest populations following the storms.

The ADSC will continue to provide soil and plant testing services at reasonable prices to farmers who were not affected by the floods.

“The reopening is a pivotal moment in CTAHR’s mission to support stakeholders and food security across the state,” said CTAHR Dean Parwinder Grewal. “Fortunately the timing of the reopening also means we can deliver more support to farmers recovering from the floods. We are providing these tests at no cost for the next three months to help our agricultural partners get back on their feet.”

“ADSC has reopened with an improved customer experience, including online payments, rapid turnaround of results, and interpretation of results and recommendations by CTAHR experts,” Parwinder said.

Brian Miyamoto, executive director of the Hawaii Farm Bureau, noted, “The reopening of the ADSC, along with three months of free testing, comes at a crucial time and helps farmers move forward with recovery and replanting. CTAHR is truly stepping up for our farmers, and we appreciate their leadership and commitment to supporting �Ჹ�ɲ���ʻ��’s agricultural community during this critical time.”

CTAHR is working to further expand its services to include seed testing, heavy metal testing, animal health diagnostics and food nutrient content analysis for food product labeling. ADSC is also expanding its seed production capacity and will add clean seedling production, which are young plants that are free from germs or disease.

Order soil, plant tests online

Farmers can order tests, find sampling instructions, and a list of CTAHR facilities on Oʻahu, �鶹��ý Island, Maui, Molokaʻi and Kauaʻi accepting samples at the .

Temporary in-person collection site until July 21, 2026

To increase accessibility for ��ʻ�����’s heavily affected north shore community, a temporary collection site has been set up at Twin Bridge Farms in Waialua:

• Soil and plant samples can be dropped off at Twin Bridge on Mondays between 8 a.m and noon
• Soil samples can also be dropped off on Thursdays between 8 a.m. and noon.

Farmers should call CTAHR at (808) 453-6050 or ugc@hawaii.edu to confirm they are dropping off samples at Twin Bridge Farms.

Permanent collection sites

Drop off sites for samples on Oʻahu are:

• The Urban Garden Center in Pearl City on Mondays from 9 a.m. to 3:30 p.m. and Tuesdays from 9 a.m. to 11 a.m., 955 Kamehameha Hwy., behind the Home Depot.
• Farmers should contact (808) 453-6050 or ugc@hawaii.edu to confirm they plan to drop off samples.
• UH ��ā�ԴDz�’s Sherman Lab, room 115, weekdays from 9 a.m. to 4 p.m., 1910 East-West Rd., Honolulu HI 96822.
• Farmers should call (808) 956-5437 or adsc@hawaii.edu to confirm they plan to drop off samples.

Visit the ADSC of drop off locations, including the neighbor islands.

University of �鶹��ý at Mānoa researchers revealed that Waikīkī is facing a fundamental shift in flood hazards as sea levels rise—transitioning from a flooding that is driven primarily by rainfall to events increasingly dominated by tidal processes. The team identified two key pathways that will become more significant with sea-level rise, both of which will increase public exposure to sewage-contaminated waters. The study was published in .

“Our findings make clear that current flood management strategies for Waikīkī are incomplete,” said Kayla Yamamoto, climate modeling analyst at the in the UH Mānoa (SOEST). “Most planning focuses on surface damage and economic loss from storms, but largely ignores the contamination dimension. Our results show that contaminated flooding will become more frequent, more extensive, and eventually a daily occurrence rather than a storm-driven one. There are currently no effective management strategies in place to address this.”

Simulating future scenarios

The team used an open-source, physics-based flood model to simulate how multiple flood sources interact in Waikīkī. The team used an advanced flood model that, unlike previous models, integrates all sources of flooding—rain, tides, underground water behavior, and storm drains—to provide a single, complete view of the hazard

“What we found is that during extreme rainfall like we’ve been experiencing, high tides and elevated water levels in the Ala Wai can combine to create conditions where contaminated water flows back into low-lying streets and sidewalks,” said Shellie Habel, study co-author and coastal geologist with the Coastal Research Collaborative and . “As sea level rises, it will take less extreme rainfall and tides to cause similar flooding in the future.”

The two key pathways they identified were: storm drain backflow, where polluted water from the Ala Wai Canal is forced into streets and public spaces in Waikīkī through drainage systems, and groundwater emergence, which brings sewage and other contaminants from aging and leaking sewage infrastructure to the surface.

The model simulations show that storm drain backflow is projected to occur even when there is no rainfall:

• 1 foot of sea-level rise: Storm drain backflow occurs during extreme tides, even without rain.
• 2 feet of sea-level rise: Storm drain backflow occurs during moderate daily tidal conditions.
• 4 feet of sea-level rise: Groundwater emergence (bringing sewage to the surface) begins to occur without rain.

Researchers compared their model simulations against tide gauges, canal water level sensors, groundwater monitoring wells, and photographs of street-level flooding during three real recent storm events, including a major 50-year Kona storm in December 2021, a moderate storm in April 2023, and a five-year Kona storm in May 2024.

Implications for Waikīkī, beyond

The Ala Wai Canal is one of the most polluted waterways in �鶹��ý, containing sewage, heavy metals and pathogens such as Vibrio and MRSA. Exposure to these waters is a documented risk, with MRSA infections linked to �鶹��ý waters already contributing to an estimated 200 deaths per year in the state. Because Waikīkī is a primary economic engine where residents and visitors are in constant contact with coastal waters, the anticipated flooding represents a growing public health and environmental crisis.

Many coastal cities around the world rely on estuarine waterways to drain their stormwater, and face the same combination of aging infrastructure, rising seas and contaminated waters.

“Our modeling framework is transferable, and we hope this study serves as a wake-up call to modernize stormwater and wastewater infrastructure, integrate contamination risk into coastal flood planning, and build early warning systems before these thresholds are crossed,” Yamamoto said.

An invasive algae already well-established in the Northwestern Hawaiian Islands is raising concern among researchers as it threatens to spread into the main Hawaiian Islands. Scientists from the University of �鶹��ý at Mānoa and the U.S. Fish and Wildlife Service (USFWS) have identified a potential ally in slowing its advance: sea turtles.

Hawaiian green sea turtles (honu) have been documented for the first time actively grazing on Chondria tumulosa, an aggressive invasive red alga that has spread rapidly across reefs among three of the northernmost atolls in Papahānaumokuākea Marine National Monument (PMNM).

The findings, recently published in the journal by researchers, suggest that honu may play a meaningful role in controlling this ecologically damaging species—while also potentially spreading it.

“After these exciting finds, our multi-partner effort to prevent this seaweed from taking hold in the Main Hawaiian Islands must include a plan to increase numbers of threatened, native green sea turtles, as well as ramping up efforts to identify all routes that could allow Chondria to spread to Oʻahu,” said Celia Smith, UH Mānoa‘s professor and senior author of the study.

Dangers of C. tumulosa

First detected at Manawai (Pearl and Hermes Atoll) in 2016, C. tumulosa has since expanded to more than 101 square kilometers of reef habitat (nearly the size of Kahoʻolawe), including Kuaihelani (Midway Atoll) in 2021 and Hōlanikū (Kure Atoll) in 2022. The alga forms dense mats more than 6 centimeters thick that can smother live coral and displace native reef species, making it one of the most pressing threats to the monument’s reef ecosystems.

Turtles take a bite

Using a stationary GoPro camera deployed on a reef at Midway Atoll in June and July 2025, the research team captured approximately 50 minutes of footage showing three honu grazing on C. tumulosa mats. One female took up to 18 bites in a 95-second burst, leaving disruptions 5–15 cm in diameter across the algal canopy—substantially larger than what urchins or fish could achieve. A complementary necropsy of a stranded adult female confirmed C. tumulosa fragments throughout her digestive tract, accounting for roughly 25% of the material in her esophagus and crop.

“These turtles are consuming a meaningful amount of this alga in a single foraging session,” said Tammy Summers, USFWS staff biologist and co-author of the study. “It’s exciting because it points to honu as a native megaherbivore with the potential to suppress C. tumulosa biomass—but it also raises important questions about whether fragments excreted during their migrations between atolls could accelerate the alga’s spread.”

The findings carry immediate management implications. Because 96% of Hawaiian green sea turtles nesting occurs at Lalo (French Frigate Shoals) before individuals disperse to foraging grounds across the archipelago, the authors recommend eDNA monitoring at Lalo to track potential spread of C. tumulosa beyond its known range.

The study was a collaboration between UH Mānoa‘s School of Life Sciences and USFWS Midway Atoll National Wildlife Refuge, and was funded by USFWS Invasive Species Strike Team funds through a cooperative agreement with UH Mānoa. Smith leads the Limu Lab at UH Mānoa, where research on C. tumulosa physiology, distribution and ecology has been ongoing for several years. Other authors on the paper are Caroline Pott from USFWS and Angela Richards Donà from the School of Life Sciences.

This work was accomplished under permit numbers PMNM-2025-001, USFWS 274 Recovery Permit TE72088A-3, Recovery Sub-permit TE163899-2, NOAA Permit 21260, and 275 State of �鶹��ý, Department of Land and Natural Resources Special Activity Permit 2026-01.

The School of Life Sciences is housed in UH Mānoa‘s .

Related UH News stories on UH Mānoa research on C. tumulosa:

• Nuisance alga detected beyond Papahānaumokuākea for the 1st time, December 16, 2024
• Early detection system for nuisance alga infesting Papahānaumokuākea reefs, September 25, 2022
• Algae species discovered infesting NW waters has been identified, July 7, 2020

The University of �鶹��ý has been designated as a new Pacific Reef Research Coordination Institute (Pacific RRCI) by the (NOAA) to support coral reef conservation in the Pacific through research, collaboration and public education.

The Pacific RRCI will be housed in UH’s , under the aegis of the , and will perform the following critical functions: conduct federally directed research to fill national and regional gaps; collaborate with relevant states and territories, Indigenous groups, coral reef managers, non-governmental organizations, and other coral reef research centers; assist in the implementation of the NOAA’s National Coral Reef Resilience Strategy and coral reef action plans; build non-federal capacity for management and restoration practices; and conduct public education and awareness programs.

“This new institute combines UH’s strengths in cutting-edge, ocean-related research and our collaborative, place-based approach to working with resource managers throughout �鶹��ý and the Pacific to protect our vital coral reefs,” said Chad B. Walton, UH interim vice president for research and innovation. “At the same time, it provides us with further opportunities to develop our region’s next generation of researchers and managers in the field of conservation futures.”

To restore and preserve coral reef ecosystems in the U.S. from natural and human-related effects, the Coral Reef Conservation Act of 2000 was reauthorized and modernized by the Restoring Resilient Reefs Act of 2021, which was included in the James M. Inhofe National Defense Authorization Act that became law in 2022. The reauthorized law required the designation of two RRCIs, one each in the Atlantic and Pacific basins, was required. The RRCIs were chosen from 32 preselected coral reef research centers and were designated based on the results of technical merit and panel reviews. The Restoring Resilient Reefs Act of 2021 was introduced and sponsored by �鶹��ý Senators Brian Schatz and Mazie K. Hirono, and Congressman Ed Case.

The UH-led institute will be guided by experienced reef researchers from UH Mānoa’s Kewalo Marine Laboratory and the �鶹��ý Institute of Marine Biology, UH Hilo’s Marine Sciences program, and the University of Guam’s Marine Laboratory. It will support research, monitoring, capacity building and outreach for coral reef management throughout the U.S states and territories of American Samoa, Guam, �鶹��ý, and the Northern Marianas Islands and with the Freely Associated States of the Federated States of Micronesia, the Republic of Palau and the Republic of the Marshall Islands.

“Many people worked many years to make this vision for collaborative reef research across the Pacific a reality,” said Suzanne Case, director of the Office of Land and Ocean Conservation Futures. “We’re excited to jump in with scientists and communities and agencies across the region to take it forward.”

The University of �鶹��ý at Mānoa will welcome physicist and oceanographer Helen Czerski for a free public talk inviting audiences to see the ocean in a new way.

Czerski, a professor at University College London, will deliver the Spring 2026 Dai Ho Chun Distinguished Lecture, on April 23 at 7 p.m. in Bilger Hall.

Her message is simple but powerful. The ocean is not just scenery; it is a system that drives life on Earth.

Czerski studies how the ocean works at a physical level. Her research looks at how gases move between air and sea, how sound travels underwater, and even how tiny bubbles behave. Together, these processes help move heat around the planet, shape weather and climate, and support life in the ocean.

“We are delighted to welcome Professor Helen Czerski to UH,” said Philip Williams, interim dean of the . “Her research shows how the ocean’s physical systems shape our planet, and she has a gift for sharing those insights in ways that capture your imagination. She invites us to see the ocean as a living force, revealing physics that shapes and nourishes our island and the world.”

The lecture is supported by the Dai Ho Chun endowment, established through an estate gift to the UH Foundation to bring distinguished speakers to campus.

The event is organized in coordination with the , a partnership among UH Mānoa, The Learning Coalition, and the �鶹��ý Community Foundation.

The one-year anniversary of the official designation of Papahānaumokuākea as a National Marine Sanctuary was celebrated on March 3, a historic milestone in the ongoing protection of one of the most sacred and ecologically significant places on Earth. In recognition of this anniversary, the (PMDP), (SAC) and the (�鶹��ý Sea Grant) are starting the new, community-centered initiative, Papahānaumokuākea: Bringing the Place to the People.

Papahānaumokuākea is a place of profound cultural, ecological and ancestral significance. Yet for many, it remains distant and abstract. The project seeks to bridge that distance by fostering meaningful, community-led engagement that deepens public awareness, stewardship, trust and cultural connection to the Papahānaumokuākea National Marine Sanctuary. Beginning in summer and fall 2026, PMDP, SAC and �鶹��ý Sea Grant will host community talk story sessions on �鶹��ý Island (Hilo and Kona), Maui, Lānaʻi, Molokaʻi, Oʻahu and Kauaʻi.

This initiative centers Native Hawaiian voices, values and leadership, elevating cultural resource conservation and protection as foundational to the sanctuary’s past, present and future. Their vision is a living, island-to-island exchange where communities do not simply learn about Papahānaumokuākea, but actively shape how its story, stewardship and future are carried forward.

Rooted in listening

These gatherings are not presentations delivered to communities, they are conversations rooted in listening. This initiative allows SAC, whose kuleana is to represent the communities, to learn directly from each island community and amplify their voices. The sessions will explore how Western science and Indigenous knowledge systems can be meaningfully integrated, community perspectives on stewardship and management, cultural resource protection priorities, opportunities for youth engagement and leadership, and how communities wish to remain connected to Papahānaumokuākea.

Community organizations, cultural practitioners, educators and schools, conservation groups, youth leaders, kupuna and ʻike holders, and interested individuals are invited to express their interest in hosting, partnering or participating in a talk story session on their island. The initiative is an invitation to listen, learn and steward together.

The initiative was funded by the . Find more information on .

As of March 2026, the UH was managing a $1.12-billion portfolio of awards, across 921 projects, mostly focused on improving the lives of state residents. This vast investment—including $945.7 million from federal agencies and $174.3 million from non-federal sources—is directed at areas of vital importance to �鶹��ý, including agriculture/aquaculture, climate resilience, conservation, invasive species, health and health equity, student access and community impact.

“The research conducted at the University of �鶹��ý improves the daily lives of every resident in the state,” said UH President Wendy Hensel. “These projects—from addressing youth mental health and assessing the long-term impacts of the Maui wildfires, to securing our food and water—are essential services. Protecting and supporting UH research is protecting the future and resilience of our island home.”

Providing solutions

UH research provides tangible solutions to island challenges. A $20-million National Science Foundation award, Change �鶹��ý, is in-part establishing a —a network of land and coastal stations that tracks rainfall, temperature, wind and other key variables in real time. This system gives local agencies the data they need to forecast floods and drought, manage wildfire risk and protect critical infrastructure, strengthening community resilience across the islands. At the same time, conservation projects are working to prevent the extinction of 37 endangered and threatened plant species in Maui Nui and to restore climate-resilient ecosystems on Oʻahu.

The fight against invasive species is critical to �鶹��ý’s economy, environment, and quality of life. Current UH projects support Little Fire Ant mitigation and ongoing efforts to manage the Coconut Rhinoceros Beetle at locations such as Joint Base Pearl Harbor-Hickam. In agriculture/aquaculture, research is introducing advanced technology, such as an AI-enhanced irrigation scheduling tool, to enable farmers statewide to benefit from precision water management.

Healthier communities

The impact of UH research directly impacts residents’ health and well-being. UH manages the Red Hill Independent Health Registry, tracking health outcomes and providing resources for those affected by the 2021 fuel release. The Hawaii Clinical Research Network for Health Equity is building a statewide clinical research network to improve health outcomes for underserved communities in �鶹��ý by expanding access to research participation, clinical trials and tailored, community-informed interventions.

UH is also advancing the overall health and readiness of �鶹��ý’s children through the program. Partnering with the �鶹��ý State Department of Education, UH Mānoa Nursing leads a statewide, school-based health system that places nurses and other health professionals in public and charter schools to provide on-campus care, preventive screenings, telehealth, and wellness education. By improving access to essential health services, reducing health-related absenteeism, and coordinating care with families and community providers, �鶹��ý Keiki helps ensure that �鶹��ý’s keiki can come to school healthy, stay in class, and thrive academically.

By supporting UH, the community ensures that critical, place-based solutions continue to be developed right here at home, guaranteeing a healthier, more resilient future for all of �鶹��ý’s people.

An analysis of more than 2,300 seawater samples from more than 20 field studies around the globe indicates that human-made chemicals—from plastic additives and industrial lubricants to pharmaceuticals and pesticides—are widespread in the marine environment, particularly in coastal and estuarine waters. The study, co-authored by University of �鶹��ý at Mānoa oceanographers and led by biochemists at the University of California, Riverside, represents one of the most comprehensive chemical analyses of coastal oceans to date.

The team analyzed seawater samples collected over a decade from coastal regions from the Pacific, Atlantic and Indian Oceans. Reported in , the findings show that industrial chemicals, many of which are rarely monitored, are far more abundant and widespread than previously recognized.

“As part of this study we included samples from coral reefs across both the Pacific and Caribbean, including samples throughout Hawaiian and Tahitian ecosystems, and we were struck by how widespread things like pharmaceuticals, pesticides and plastics were even in some remote island reefs and dozens of kilometers offshore,” said Craig Nelson, researcher in the UH Mānoa , graduate chair of oceanography, and one of the senior authors on the paper.

“Even in places we consider relatively pristine, we found clear chemical fingerprints of human activity,” said Daniel Petras, assistant professor of biochemistry at University of California, Riverside. “The extent of this influence was surprising.”

Impacts nearshore and offshore

The study found that in datasets from coastal environments as much as 20% of the measured organic material was of human origin, compared to about 0.5% in the open ocean. In extreme cases, such as river mouths impacted by untreated or poorly treated wastewater, that figure exceeded 50%. Across all samples, the 248 identified human-derived compounds tracked in this study made up around 2% of the total detected signal.

While pesticides and pharmaceuticals were expected to be most concentrated near shorelines, the study found that industrial compounds, including substances used in plastics, lubricants and consumer products, dominate the anthropogenic (human induced) chemical signal in all areas of the ocean.

The researchers also found that anthropogenic chemicals persist well beyond the coastline. Even more than 20 kilometers offshore, human-derived compounds accounted for roughly 1% of detected organic matter.

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A breakthrough in marine mammal health surveillance can now detect deadly diseases in whales and dolphins in oceans, beaches and remote locations, thanks to new research from the University of �鶹��ý at Mānoa.

The UH Health and Stranding Lab at the (CTAHR) worked together with international researchers to validate a portable, field-deployable molecular diagnostic tool for Cetacean Morbillivirus (CeMV). The study was published in .

Rapid detection in the field

CeMV has caused mass deaths of thousands of marine animals globally. Traditionally, detecting such pathogens required sending samples to specialized laboratories, often resulting in delays of weeks to months.

“This is the first application of a field-deployable system for rapid testing for whales and dolphins,” said Kristi West, director of the UH Health and Stranding Lab. “It breaks down barriers to detection because it can be used remotely, even without a traditional lab nearby.”

The portable unit delivers results in about an hour, aiding decision-making during mass stranding events. It is designed for hot, humid environments, making it essential for detecting outbreaks early and potentially preventing larger epidemics. The system uses high-speed testing to provide rapid, on-site results. It proved effective across multiple divergent strains from �鶹��ý, Europe and Brazil, even in archived tissues up to 28 years old.

“We want to train others so we can increase what we know about disease in many other areas of the world,” West said.

Global collaboration and training

To ensure this technology reaches those who need it most, UH researchers hosted a workshop in Honolulu with Professor Wei-Cheng Yang from National Taiwan University’s Veterinary School to train stranding responders and scientists from across the Pacific.

Participants included staff from the Taiwanese Cetacean Society, and representatives from the �鶹��ý Department of Land and Natural Resource’s Division of Aquatic Resources, NOAA Fisheries, the U.S. Geological Survey’s National Wildlife Health Center, biologists from Guam and Saipan and CTAHR graduate students.

During the workshop, researchers ran tests on known positive and negative samples for diseases impacting dolphins and Nene, the endemic Hawaiian goose. The Taiwanese team also shared their insights from a mass stranding of 11 pygmy killer whales they had responded to just days before arriving in �鶹��ý, which resulted in the successful release of seven whales.

The project is supported by U.S. Pacific Fleet Environmental Readiness Division and a joint zoonotic disease grant with the state of �Ჹ�ɲ���ʻ��’s Department of Land and Natural Resources and involves collaborators from Taiwan, the Philippines, Spain, and Brazil.

The University of �鶹��ý has 28 buildings certified under the Leadership in Energy and Environmental Design (LEED) program, part of the nation’s green building standards, which is administered by the U.S. Green Building Council.

“We have the largest inventory of sustainably designed buildings out of all the state agencies, and we are about to increase our inventory by 14%, once again leading by example,” said Miles Topping, director of energy management.

The certification system evaluates projects across multiple categories, including energy efficiency, water use, materials selection, waste management and indoor environmental quality. To achieve certification, projects must first meet prerequisite requirements and then earn points by meeting specific sustainability criteria. Projects undergo a verification and review process before being awarded one of four certification levels: certified, silver, gold or platinum.

UH System ratings

Across the UH system, certified facilities include two platinum, 14 gold, 10 silver, and two certified buildings, reflecting the university’s commitment to sustainability and efficient campus development.

UH has adopted green building practices that require new construction and major renovation projects to meet LEED standards, with a minimum certification target of silver. These standards are incorporated into university policy to ensure sustainability is integrated into the planning and design of campus facilities.

Several upcoming UH Mānoa construction projects also aim to meet the LEED Silver standard, including the Student Success Center, the Bachman Hall renovation, the Seed Lab, and the Snyder Hall Replacement Building. Once completed, these additions are expected to increase the university’s LEED-certified building inventory by 14%, growing from 28 to 32 certified facilities.

While LEED projects may involve slightly higher upfront construction costs due to sustainable design and materials, the long-term benefits often outweigh the initial investment. Many certified buildings incorporate features such as low-flow toilets and faucets to conserve water, bike facilities, natural landscaping and energy-efficient systems, including renewable energy technologies.

Find more information on UH’s LEED Portfolio.