The threat to Johnson's Seagrass comes from both human and natural disturbance. On the
human front, boat propellers, anchor moorings and dredging causes huge damage to the root
systems and the build up of silt and degradation of water quality due to human activity is also a
enormously damaging. It reproduces slowly being asexual and must have a stable environment
to thrive. Many abundant populations of Johnson's Seagrass are located close to inlets and
during hurricanes storm surge may drastically clear or redistribute sediments thereby eroding or
burying existing patches of the species.
For more information visit www.nmfs.noaa.gov.
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