Research

 

Funding

Projects

Planning Grants

Impacts

Applied Science

Sea Grant invests in high-priority research, addressing issues such as coastal hazards and development in coastal communities; understanding our interactions with the marine environment; aquaculture; seafood safety; and fisheries management. The results of this research are shared with the public through Sea Grant’s integrated outreach program to bring together the collective expertise of on-the-ground extension agents, educators, and communications specialists.

We work with stakeholders, academics, businesses, non-profits, and government agencies to apply sound scientific, policy, and legal research findings to ensure a collaborative effort and informed decision-making for managing the state’s coastal and marine resources.

The goal is to ensure that vital research results are shared with those who need it most and in ways that are timely, relevant, and meaningful.

Funding

RESEARCH:

Rhode Island Sea Grant provides funding for scientific research both in the natural and social sciences to improve understanding and management of Rhode Island’s coastal and marine ecosystems.

We provide funding on a 2-year cycle using a rigorous and competitive peer-review process. We choose priority research topics through a collaborative strategic-planning process that engages scientists, our advisory board, our partners, and the public. Currently these topics are:

  • Healthy Coastal Ecosystems
  • Sustainable Fisheries and Aquaculture
  • Resilient Communities and Economies

CONTACT

For more information or assistance, please contact Kim Ohnemus, Rhode Island Sea Grant Workforce Development and Research Coordinator, at kohnemus@uri.edu

Focus Areas

Coastal Ecosystems

Issues affecting coastal ecosystem health—ranging from coastal development, working waterfronts, and food security to sea level rise and renewable energy.

Resilient Communities

Issues that affect community mitigation and adaptation to anticipated climate changes, as well as societal impacts and use of coastal and ocean resources, including community values and management practices. 

Fisheries & Aquaculture

Issues such as stock abundance, regulatory structure, marine diseases, and consumer safety that impact the economic, environmental, and social sustainability of fisheries and aquaculture.

Celebrating the Career of Alan Desbonnet

After more than three decades of service, Alan Desbonnet, Assistant Director of Rhode Island Sea Grant, is retiring, marking the close of an extraordinary career dedicated to coastal science and public service.  Alan joined Rhode Island Sea Grant in 1989 as an...

New Method Helps Scientists Understand How Crabs Handle Microplastics

Over 1,000 tons of microplastics have accumulated in the top five centimeters of the seafloor in Narragansett Bay. This puts seabed-dwelling organisms—and the predators that rely on them—at growing risk of exposure. With support from Rhode Island Sea Grant, University...

Smaller Microplastic Loads Found in Southern Narragansett Bay

New URI research offers a clearer picture of how pollution travels through the estuary. Microplastics are everywhere in coastal waters—from tiny fibers shed by clothing to fragments of degraded packaging. But their abundance isn’t uniform across a place as dynamic as...

Microplastics in Narragansett Bay: Hotspots, Pathways, and Solutions

Microplastics are now found everywhere—from polar ice to human bloodstreams. Join us for a discussion on how and where they accumulate in coastal ecosystems.

The Space in Between: The Overlooked Role of Inland and Coastal Waters in Shaping the Global Nitrogen Cycle

Sea Grant-supported research has found that Inland and coastal waters fix 15% of global nitrogen—about 88 billion pounds yearly—despite covering less than 10% of Earth’s surface, revealing their outsized role in ecosystem productivity.

Sea Grant Investment Spurs Cutting-Edge Technology for Plastic Pollution Research

Rhode Island Sea Grant-funded research investigating microplastics in Narragansett Bay helped attract funding for new tools, like URI’s advanced LDIR spectrometer, to support ongoing research.

Microplastic Hot Spots in Narragansett Bay Driven by Urban Runoff and Wind, New Study Finds

New Sea Grant-funded research shows microplastics concentrate in northern Narragansett Bay, driven by river runoff, wind, and seasons—providing insights that could shape smarter pollution management.

Artificial Reef Model Shows Promise for Reducing Erosion on Block Island

A URI study shows an artificial reef could cut wave energy by 85% and erosion by 70% at Crescent Beach, helping protect Block Island’s fragile link. Supported by RI Sea Grant, the work guides nature-based solutions for coastal resilience.

Seaweed May Be a Hidden Host for Bacteria, Study Finds

New research supported by Rhode Island Sea Grant found that opportunistic and fast-growing species of macroalgae, like sea lettuce found in Narragansett Bay, may harbor higher concentrations of potentially pathogenic Vibrio bacteria.

Sea Urchin Farming New England’s Next Aquaculture Frontier

Growing sea urchins and integration into other aquaculture operations, such as oysters, present an opportunity to meet growing consumer demand while fostering environmental sustainability.

Current Projects

2024-2027

These projects address priority coastal and ocean challenges in Rhode Island, including ecosystem health, coastal resilience, sustainable fisheries and aquaculture, and the social, economic, and environmental dimensions of coastal management.

Coastal Acidification Impacts on Shellfish and Nitrogen Cycling

 

 

 

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Qualifying the Impacts of Coastal Acidification on Rhode Island Shellfish Aquaculture Nitrogen Removal Capacity”

Principal Investigator (PI):
Robinson Fulweiler; Boston University

Shellfish, such as oysters, help to combat coastal eutrophication and acidification, yet it is unknown how coastal acidification may influence an organism’s ability to remove and store nitrogen–the nutrient largely associated with eutrophication. This project seeks to understand how coastal acidification influences the ability of oysters to extract nitrogen from the water column and store it in the shells and tissue. It also seeks to quantify how coastal acidification alters nitrogen removal via the microbially driven process of denitrification in the sediment surrounding oyster habitats. The team will expose growing oysters to different pH levels and analyze how rates of denitrification change in response to different levels of acidity. The team will also work with aquaculture farms across the state, measuring pH at various locations to improve understanding of how acidity varies in coastal waters.

Nature-Based Solutions for Coastal Erosion on Block Island

 

 

 

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Monitoring and Numerical Simulations of Natural and Nature-Based Solutions to Coastal Erosion on Block Island”

Principal Investigator (PI):
Annette Grilli, University of Rhode Island

Co-PIs: Stephen Grilli, University of Rhode Island

Christopher Baxter, University of Rhode Island

Nate Vinhateiro, University of Rhode Island/Coastal Institute

Brian Oakley, Eastern Connecticut State University

Initiated by a request from Block Island residents, this project seeks to investigate nature-based solutions to the increasing threat from coastal erosion and sea level rise to critical infrastructure on Block Island. The project will use scenario-based hydro-morpho dynamic numerical modeling, local stakeholder engagement, and crowd-sourced imaging (via CoastSnap) to assess the feasibility and efficiency of various natural and nature-based solutions to protect highly-vulnerable sections of Corn Neck Rd, a vital roadway connecting the island. Outcomes of this project include a better understanding of the efficacy of natural and nature-based solutions in high-energy wave environments subject to both erosion and rising sea levels.

Tracking Local Changes in Summer Flounder

 

 

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Understanding Local Changes in Summer Flounder for Improved Sustainable Management”

Principal Investigator (PI): Corinne Truesdale, RIDEM

Rick Bellavance, Rhode Island Party and Charter Boat Association

Greg Vespe, Rhode Island Saltwater Anglers Association 

RIDEM is responding to stakeholder observations of a decline in summer flounder in Rhode Island waters over previous years that are not evident in coast-wide stock assessments. This project seeks to describe summer flounder stock dynamics in Rhode Island waters to understand the species’ response to local environmental change and to better inform management practices. The team will be using tagging and time series analysis to study local movement dynamics and distribution changes. McManus and his team will work with local recreational harvesters to deploy tags and collect information on flounder population size, movement and distribution in state waters. The goal of this project is to improve understanding of summer flounder population in local waters for enhanced science-based management of the resource.

Environment, Genetics, and Disease in Oyster Survival

 

 

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The Interaction of Environment, Genotype and Disease on Juvenile Oyster Survival”

Principal Investigator (PI): Jonathan Puritz, University of Rhode Island

This project builds on existing research studying the impacts of environmental stressors, including coastal acidification and decreased oxygen, on the health and vitality of the eastern oyster. Dr. Puritz seeks to understand the connection between oysters’ genetic makeup and their susceptibility to environmental stressors and disease. The team will analyze the genomes of lab-grown oysters to detect genetic variants responsible for enhanced growth and survival in high-stress environments. These genomes will be compared to those of wild oysters populations to better inform broodstock selection for regional oyster growers.

Monitoring Coastal Land Sinking in Rhode Island

 

 

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Principal Investigator (PI): Meng (Matt) Wei, University of Rhode Island Graduate School of Oceanography

Co-PIs: Steven D’Hondt, University of Rhode Island

Pamela Rubinoff, Rhode Island Sea Grant/Coastal Resource Center

Dr. Wei and his research team will use Interferometric Synthetic Aperture Radar (InSAR) to create a precise and detailed vertical land motion map of Rhode Island, with a particular emphasis on coastal communities. By analyzing the rates of subsidence in these areas, they aim to enhance our understanding of coastal flooding risks associated with changing sea levels. Integrating this data with existing datasets will provide a more comprehensive understanding of subsidence in Rhode Island and its potential impacts on vulnerable coastal communities.

2026-2028

This current cycle of research is recommended for funding and pending final approval by NOAA. Projects will investigate monitoring coastal subsidence to better understand coastal communities’ flooding risks, the application of nature-based solutions to coastal erosion, and the impacts of environmental stressors including coastal acidification on oysters and flounder.

Salt Marsh Resilience and Blue Carbon on Block Island

 

 

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Salt marsh resilience and carbon dynamics on Block Island, RI: Outlooks on restoration and blue carbon economy”

Principal Investigator (PI): Erin Peck, University of Rhode Island Graduate School of Oceanography

This research investigates the resilience of Block Island salt marshes to sea level rise and human-driven stressors, with a focus on marsh morphology and carbon storage. By measuring carbon fluxes, sediment dynamics, and marsh vulnerability, the project will inform restoration and conservation strategies while advancing understanding of blue carbon potential. Findings will directly support local coastal management and workforce development through applied science and community engagement.

Establishing Purple Sea Urchin Aquaculture in Rhode Island

 

 

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Principal Investigator (PI): Coleen Suckling (University of Rhode Island); Co-PIs include Rhode Island Sea Grant Extension

This applied research project explores the use of purple sea urchins as a sustainable biofouling control tool in shellfish aquaculture. By integrating urchins with oyster farming, the project aims to reduce labor-intensive cleaning, improve farm efficiency, and assess the feasibility of developing a new aquaculture species. The work will produce grower guidance, hatchery protocols, and management frameworks while supporting workforce development and resilient coastal economies.

Using Seeds to Restore and Strengthen Rhode Island’s Eelgrass

 

 

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Project title: Enhancing Eelgrass Resilience and Thermal Tolerance Through Seed-Based Restoration and Enhancement Approaches”

Principal Investigator (PI): Eric Schneider (Rhode Island Department of Environmental Management, Division of Marine Fisheries)

Eelgrass is a foundational coastal habitat in Rhode Island but is increasingly threatened by warming waters and habitat degradation. This project evaluates seed-based restoration approaches, including the use of eelgrass seeds sourced from different regions, to improve resilience and thermal tolerance. The research also addresses regulatory and policy barriers to seed transfer, producing guidance to support effective, science-based eelgrass restoration statewide.

Bluff to Beach: Understanding Coastal Erosion on Block Island

 

 

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“Quantifying Shoreline Dynamics and Sediment Flux to Improve Coastal Resilience on Block Island, RI”

Principal Investigator (PI): Bryan Oakley (Eastern Connecticut State University); Co-PIs include URI Coastal Institute and NRS researchers

This project examines how shoreline erosion and bluff retreat shape coastal vulnerability on Block Island across time scales ranging from decades to seasonal change. Using high-resolution mapping, LiDAR, UAV data, and sediment analyses, the team is quantifying shoreline change, sediment flux, and areas of heightened erosion risk. The results will support coastal planning and decision-making by providing new tools, datasets, and visualizations to help communities adapt to erosion, flooding, and sea level rise.

Understanding PFAS in Narragansett Bay Fish and Shellfish

 

 

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“Sources, Transport, and Bioaccumulation of Fluorinated Compounds in Narragansett Bay Fish and Shellfish and Potential Risks”

Principal Investigator (PI): Rainer Lohmann (University of Rhode Island)

This study examines the presence and movement of fluorinated compounds, including PFAS, in Narragansett Bay waters, sediments, and marine organisms. By measuring concentrations across fish, shellfish, and kelp, the project aims to better understand pathways of bioaccumulation and potential ecological and human health risks. The findings will provide critical data to inform environmental monitoring, seafood safety discussions, and risk assessment efforts in Rhode Island.

Storm Risk Assessment of Rhode Island Marinas

 

 

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“Storm Risk Assessment of Rhode Island Marinas: Toward a Quantitative Damage Model Driven by Coastal Hazards and Vessel Impacts”

Principal Investigator (PI): Mehrshad Amini (University of Rhode Island)

This project develops a quantitative framework to assess storm-related risks to Rhode Island marinas by integrating coastal hazards, debris movement, and vessel impacts. Combining modeling, geospatial analysis, and stakeholder engagement, the research will produce decision-support tools to help marina owners, planners, and emergency managers better understand and reduce infrastructure vulnerability under future storm and climate conditions.

Previous Projects

Research Planning Projects

Coastal Access and Climate Change

 

 

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Sustained Access to Rhode Island’s Coast in a Changing Climate (SEA-C)

Principal Investigator (PI):
Nathan Vinhaterio, University of Rhode Island Coastal Institute

Co-PIs:
Elin Torell, University of Rhode Island Coastal Institute
Emi Uchida, URI Environmental and Natural Resource Economics
Jesse Reiblich, URI Marine Affairs
Leah Feldman, RI CRMC

Public shoreline access areas lie on the front lines of climate change – the active coastal zone – where storm surge flooding, sea level rise, and stormwater runoff dynamically combine. Researchers from the Coastal Institute will investigate how climate change may lead to the loss of public lands, identify the user groups most likely to be impacted, and establish the local actions needed to minimize climate impacts, especially for underserved communities.

The proposed project will form an interdisciplinary research team and partner with municipal leaders and other stakeholders in Rhode Island to investigate how climate change may lead to the loss of public lands, identify the user groups most likely to be impacted, and establish the local actions needed to minimize climate impacts, especially for underserved communities.

Through a series of pilot studies in Bristol County, RI the project team will (i) develop baseline geospatial data layers that can be used to identify where existing resources may be threatened or lost due to climate change, (ii) quantify human visitation to coastal access sites through (anonymized) cell location records, focus groups, and surveys, and (iii) perform legal research to prioritize areas for public access designation.

Results of the pilot studies will guide the development of a detailed action plan that identifies research needs and positions the SEA-C team to pursue future grant proposals.

Reframing Coastal Fishing Access

 

 

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More than Recreation: Reframing coastal fishing access in RI as a food security issue 

Principal Investigator (PI):
Melva Treviño-Peña, URI Marine Affairs

Co-PI(s):
Patrick Baur,  URI Fisheries, Animal, and Veterinary Sciences
Seray Ergene, URI College of Business
Amelia Moore, URI Marine Affairs
Marta Gomez-Chiarri, URI Aquaculture/Fisheries

In recognition of fishing at coastal access points as important within traditional food networks, researchers from the University of Rhode Island have partnered with the Center for Southeast Asians of Rhode Island and the Refugee Dream Center to better understand the usage and barriers for shore fishers.

The proposed project will characterize how different communities seek to improve their food security and overall well-being by fishing public coastal spaces in Rhode Island.

Researchers hope to gain a deeper understanding of coastal resource utilization, nutritional and cultural services provided by local coastal fisheries, and barriers to coastal access.

Moreover, this project will identify areas of disconnect between government agencies and shore fishers, including fishing regulation and licensing, public health advisories, and community knowledge and perceptions of environmental quality and risks.

The results of this study will open new, policy opportunities that strategically reduce barriers to coastal access, recognize the contributions of locally-caught fish to local and regional food security, and foster local food system resilience by highlighting underutilized species and markets.

 

Sea Urchin Aquaculture

 

 

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Working towards developing sea urchin aquaculture in Rhode Island: A case study for working towards diversification

Principal Investigator (PI):
Coleen Suckling, URI Fisheries, Animal, and Veterinary Sciences

Co-PI(s):
Emily Diamond, URI Communications/Marine Affairs

Researchers, in partnership with Matunuck Oyster Bar Hatchery and Quonnie Siren Oyster Co., will look at the feasibility of rearing sea urchins to diversify Rhode Island aquaculture, which is primarily focused on oysters and mussels.

Sea urchins are resilient to ocean acidification, have a  low environmental production footprint, are increasingly in demand, and there is emerging interest in the aquaculture industry to grow them.

The project goal of this project is to establish a network that could sustain a regional sea urchin aquaculture industry by initiating production in Rhode Island.

Social and natural scientific approaches will be used to recruit and engage with regulation, aquaculture, consumers and ecosystem management stakeholders in network-building workshops to identify the opportunities, priorities, risks, and challenges for diversification from these broad perspectives.

A case study using a new potential product of sea urchins will contribute to these and comprise of: 1) targeting fishers and divers through surveys, interviews and assisted sampling/dive surveys to find green sea urchin broodstock and; 2) an experimental trial at an oyster farm to determine whether purple sea urchins can be marketable and/or used to reduce shellfish biofouling species.

IMPACTS

Rhode Island Sea Grant has funded hundreds of projects over the last 50 years that have resulted in hundreds of more peer-review publications that have helped to advance scientific knowledge of Rhode Island’s coast, as well as help guide state policies concerning ecosystem health, coastal resilience, sustainable seafood, and offshore development.

 

“Rhode Island’s coastal habitat and fisheries are an essential part of our culture and economy.  The University of Rhode Island is a national leader in ocean research and conservation, and the Sea Grant program has been a vital partner in carrying out cooperative research and strengthening our coastal communities.” 

Senator Jack Reed (RI)
Ranking member of the Appropriations Subcommittee on Commerce, Justice, Science (CJS), and Related Agencies

 

Search Sea Grant Databases

To find a complete list of our research impacts and accomplishments, visit the National Sea Grant’s website to search by program, year, and topic.