NASA reported October 29 that researchers it funds are helping Virginia officials assess oyster-farm impacts from a harmful algae bloom that struck the Eastern Shore in September.
The Virginia Marine Resources Commission is using researchers’ maps and guidance to identify affected growing and restoration areas. The work builds on a NASA Earth Action project combining satellite observations with input from shellfish growers.
Researchers at the Virginia Institute of Marine Science documented a nearly continuous bloom along about 15 miles of shoreline, from Cape Charles to south of Nassawadox Creek. NASA said it included Alexandrium monilatum, an algae species known to harm aquatic life.
The team analyzed Sentinel-2 satellite imagery and used the Chesapeake Bay Environmental Forecast System to reconstruct water temperature, salinity and winds.
The analysis indicated unusually warm water in early September and suggested later winds could have pushed bloom waters toward oyster-growing areas.
The bloom occurred in September; Thursday’s development is NASA’s account of the ongoing assessment. The report does not provide a final dollar estimate of losses or establish a single cause for every affected farm.
Sources: NASA — October 29 Research Account: https://science.nasa.gov/blogs/science-news/2026/10/29/nasa-virginia-oyster-loss-algae-bloom/