Seagrass

Video

Photos

Underwater view of a dense seagrass bed with long, narrow green blades swaying on a sandy bottom.
Underwater view of a dense seagrass bed with long, narrow green blades swaying on a sandy bottom, with a small fish visible in the background.
Underwater view of a dense seagrass bed with long, narrow green blades swaying on a sandy bottom, with a small fish visible in the background.
Underwater view of a dense seagrass bed with long, narrow green blades swaying on a sandy bottom, with a small fish visible in the background.
Underwater view of a dense seagrass bed with long, narrow green blades swaying on a sandy bottom, with a small fish visible in the background.
A field technician wearing a life vest examines a water sample on a boat, with field equipment and sample bottles nearby on calm open water.
A field technician leans over the side of a boat to collect a water sample, with an open field equipment case and sampling supplies visible on deck.
A field technician leans over the side of a boat to collect a water sample, with an open field equipment case and sampling supplies visible on deck.
Close-up of a field technician in a life vest leaning over the side of a boat to submerge a sample collection vial into open water.
Two divers in black wetsuits conducting a field survey in shallow coastal waters, with one diver examining a framed underwater sampling quadrat containing aquatic vegetation.
Aerial view of four field researchers in black wetsuits conducting an aquatic vegetation survey in shallow coastal waters, using gridded sampling quadrats and a transect line anchored to a monitoring pole.
Bar and line graph from the St. Johns River Water Management District showing seagrass areal extent in hectares, mean transect length in meters, and mean transect cover percentage from 1993 to 2025. Areal extent and transect length peaked around 2007–2009 and declined significantly through 2022, with a modest recovery shown in 2025.
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