Page 6 - 2021-2022 Impact Report

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“I am studying the effects of adding alkalizing minerals to estuarine sediments to buffer the impacts of ocean acidification on a local scale. My study area is the Idaho Flats in Yaquina Bay, Oregon. I use a device to capture solutes in amended sediment porewater and then measure and analyze my samples for alkalinity, ions, and nutrients in the lab.
Estuarine sediments serve a significant role in our ability to help marine calcifiers (e.g., clams, oysters, crabs, shrimp, and mussels) in an acidifying world by sediment buffering, an artificial way of reducing acidification by adding crushing minerals directly to sediments. This increases the alkalinity of sediment porewaters, making it easier for young calcifiers to build their shells. This buffering also increases the ability to take up additional carbon dioxide from human-caused emissions.
Buffering sediments is one of the most feasible, inexpensive
forms of ocean carbon dioxide removal. Although restricted to nearshore systems, these areas are some of the most ecologically and economically vulnerable to ocean acidification. Buffering can help coastal communities relying on shellfish hatcheries and farms negatively affected by acidifying conditions. Studies show that buffering can increase newly-settled bivalves, offering an important management strategy for policymakers and resource managers.
The ARCS award allows me to build a network of scientists and a community of people who advocate for good science and communication with the public. ARCS Oregon and my sponsors have shown enthusiasm and encouragement and have created a platform for me to further my dreams.”
Jaquan High Geology
OSU
The Sally & Jerry Fish and Elise McClure Scholar