Barriers to oyster recovery in Hudson River Estuary: Billions of larvae with no place to go
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Interest in eastern oyster restoration in the Hudson/Raritan estuary (HRE) has been building in conjunction with water quality improvements near New York City. Restoration is motivated by the ecosystem services typically provided by a large oyster population. In this project we continued systematic monitoring of newly settled oyster spat south of the only known wild population in the Hudson River. Oyster settlement was higher in 2020 than seen in either of the two preceding years of comparable monitoring. Similar to previous years, settling oyster abundance decreased to the south and was much reduced below Yonkers. We initiated a collaboration with New York City BioBoat educators that allowed settlement monitoring logistics from a small boat, achieving a research goal of collecting settlement data at finer spatial resolution. Unfortunately, the mutual goal of involving high school students was not achievable during the 2020 COVID-19 restricted field season.