Projects will take place from 2025 to 2028
Investigators: James O’Donnell, University of Connecticut
Grant Award: $750,000
Three hypothesis about the mechanisms controlling hypoxia in western Long Island Sound will be tested. The testing will be done with new but demonstrated equipment to create a dataset describing oxygen exchanges and mixing. An advisory committee will guide the project and ensure that its outputs are useful to people involved in management of the Sound.
Investigator: Christopher J. Gobler, Stony Brook University
EPA Grant Award: $325,658
Summary: This project will assess effects of excess nutrients on the proliferation of phytoplankton and harmful algal blooms (HABs), hypoxia and carbon sinking under different temperature scenarios expected with climate change. It will also identify levels of nutrient reduction needed to reduce these effects, solicit feedback and communicate findings with CT and NY management agencies.
Investigator: Dianne I. Greenfield, City University of New York
EPA Grant Award: $597,845
Researchers will evaluate water quality, nutrients and phytoplankton at sites directly downstream and away from wastewater treatment plant outfalls during dry and wet periods, assess the relationship between nitrogen inputs and HABs, and identify tipping points that trigger HABs species proliferation. Findings will be shared with shellfish managers, municipal wastewater agencies, advocacy groups and researchers.
Investigator: Craig Tobias, CT National Estuarine Research Reserve, University of Connecticut
EPA Grant Award: $498,074
Researchers will quantify the impact of salt marshes on nitrogen levels in Long Island Sound embayments, an important factor in water quality and overall ecosystem health. Isotope tracers and other techniques will be used to model how nitrogen is buried in marshes and then reintroduced to embayment waters via drainage of marsh waters.
Investigator: Giovanna McClenachan, Stony Brook University
EPA Grant Award: $332,282
At specific salt marshes in CT and NY, rates of elevation gain will be calculated, landscape conditions influencing elevation change will be quantified, and plant decay rates measured. Restoration managers will be provided with data to maximize tidal marsh elevation gain, increasing their resilience to sea level rise.
Investigator: Beth A. Lawrence, University of Connecticut
EPA Grant Award: $838,517
Researchers will evaluate salt marsh restoration recovery progress and resilience over time, using field date from restoration sites across the Sound. The results will be used to inform diverse audiences about the challenges and opportunities of coastal restoration.
Investigator: Sarah C. Crosby, The Maritime Aquarium at Norwalk
EPA Grant Award: $431,535
Characteristics of soils and grasses planted at successful and unsuccessful restoration sites in Great Meadows Marsh in Stratford will be assessed to provide guidance to improve restoration outcomes. Salt marsh grass species from local and southern sources will be planted within and outside of structures that mimic warming climate conditions to inform future restoration work.
Investigator: Ashley Helton, University of Connecticut
EPA Grant Award: $550,000
The practice of using soils from dredging projects to raise salt marsh elevation and enhance marsh resilience will be assessed to determine when and where these soils become acidic and inhibit plant growth, decreasing value for wildlife and reducing carbon storage. Researchers will quantify the effects of flooding and amendments to dredged soils to act as a buffer.
Investigator: Eric T. Schultz, University of Connnecticut
EPA Grant Award: $283,128
Research will seek to determine the role of increasing competition for food in declines in four flatfish species (summer flounder, windowpane flounder, winter flounder and fourspot flounder). Stomach contents of these flatfish species along with those of recently abundant competitor species (black sea bass, scup and dusky smoothhound) will be analyzed.
Investigator: James O. Knighton, University of Connecticut
EPA Grant Award: $496,219
Researchers will create a dataset of the age and size of in-migrating adult river herring and out-migrating juveniles over two seasons and compare with historical samples to determine the impacts of streamflow and diminished connectivity among spawning ponds on population health. Forecasts of how future climate and land cover change will impact river hearing populations will be developed to inform management decisions.
Investigator: Matthew P. Hare, Cornell University
EPA Grant Award: $242,754
Research will investigate the contribution of oyster farms to wild oyster populations through migration of larvae from farmed oysters into native populations. Positive and negative consequences of genetic mixing of wild and farmed oyster populations will also be assessed.
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