Submerged Aquatic Vegetation (SAV) Abundance (1984-2023) ^‍‍

*Estimated Additional Acreage: Factors such as adverse weather conditions, water clarity, or security restrictions over military air space prevented researchers from collecting aerial imagery. For these unmapped areas, estimates of SAV acreage are based on the prior year’s survey. Data were not collected in 1988. See how these data are used in the Submerged Aquatic Vegetation (SAV) Outcome.