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Green engineering solutions for halting coastal habitat loss and restoring
ecological function
Christine Angelini, University of [email protected]
Florida, where the coast is key
75% live in coastal zoneTampa Bay Times
$7.6 billion in salt water fishingNOAA 2014 report 90 million visitors per year
$8.6 billion in boating
Valuable commercial fisheries
Florida, a sentinel for global change
UF Coastal Ecosystem DynamicsSystems Ecology Coastal OceanographyGeotech.Engineering
Andrew AltieriCoral reef, coastal and benthic ecology
Christine AngeliniCoastal & conservation ecology, restoration engineering
David KaplanWatershed ecology, hydrology, climate change
Mike McVayBridge and pile engineering, substrate & slope stability
Scott WasmanGeomicrobiology, soil-structure interactions, soil improvement
Alex SheremetWave physics, fluiddynamics, mudlayer-wave interactions
Alberto CanestrelliCoastal geomorphology, storm surge forecasting
Maitane OlabarrietaSediment transport, tidal inlet evolution, wave modeling
Computer Science & Informatics
Paul GaderRemote sensing, image analysis, machine learning
Peter ShengHurricane surge modeling, turbulence modeling, boundary layer dynamics
Arnoldo Valle-LevinsonEstuarine circulation, salt water intrusion, larval transport
Boat stress in our estuaries
ICW: 3,000 mile artery for
commerce
Loss of oyster reefs & salt marshes
Traditional living shoreline methods (e.g. oyster bags & grass plantings) will not work under these conditions
“Green Engineering”
Experimental break walls and oyster restoration structures deployed at 6 high-energy sites within the GTM NERR, Ponte Vedra, FL
Ada BersozaEnvironmental Engineering
Emily AstromCoastalEngineering
Emily AstromCivil & CoastalEngineering
Maintaining coastal habitats with natural materials
Semi-permeable wave breaks
Oyster gabions Potato-based BESE
Seasonal monitoring variables:• Wall stability, permeability and
fouling• Sediment accumulation/loss• Oyster establishment and growth • Marsh vegetation loss/gain• Invertebrate community shifts• Wave/wake dissipation• Wave/wake profiles
Upcoming educational materials:• Written manual
• Materials, costs, construction tips
• Training video• Gabion and break installation
tips• Interactive display on The Edges of
our Estuaries at GTM NERR
Preliminary results: loss of organic soils
-60
-30
0
30
60
0 5 10 15
Dist
ance
to r
emna
nt p
eat (
0 cm
)
2016
2017
0-40cm of peat is being scoured from plant roots & locally lost over 9 months
Other restoration projectsOysters in Cedar Key, FL And around the state
Other restoration projects
Marsh cordgrass in Ponte Vedra
Questions?
