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Structural and Dynamic Habitat in the Suwannee Estuary Ellen Raabe, Randy Edwards, and Carole McIvor.

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Presentation on theme: "Structural and Dynamic Habitat in the Suwannee Estuary Ellen Raabe, Randy Edwards, and Carole McIvor."— Presentation transcript:

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2 Structural and Dynamic Habitat in the Suwannee Estuary Ellen Raabe, Randy Edwards, and Carole McIvor

3 Cooperative Effort u Cooperative data acquisition with FDEP u FWS/USGS cooperative u USGS Director’s Venture Capital u Integrated science

4 Why Suwannee Estuary? Confluence of fresh and tidal waters (MFL) Existing Research/FWS Unique Setting and Ecological value Recreation and Shellfish Industry Opportunity for Integrated Science CASI imagery Suwannee Estuary Bands 9,7,5

5 An application of remotely sensed imagery to integrated habitat mapping u To map subtidal and intertidal habitat with hyperspectral imagery (CASI) u To link structural and dynamic habitat u To link habitat to fish ecology u To develop resource management tool

6 Tidal creek in forest Flooded low marsh Submerged limestone and high brackish marsh Submerged flats HABITATHABITAT

7 Habitat Map l CASI imagery l 4m, 12 bands l Habitats –Submerged –Emergent –Uplands Bumblebee Creek Barnett Creek

8 Estuarine Fish Ecology l Similar species composition North and South l Freshwater species in south tidal creeks –Seasonal and interannual variation? –Habitat use and preferences? –Dynamic habitat and benthic biota?

9 Dynamic Habitat l 0-25 ppt l Tidal lag into creeks – hours l Net GW discharge –At low tide –Strongest signal in northern creek l Need data: –Water flow/depth –WQ and salinity –Sediment load –Plankton –Benthic biota –Accessibility, duration, stability

10 Submerged Tidal creeks Shallow flats Low marsh Brackish marsh High marsh Flood zones Low elevation freshwater habitats

11 Future l Strengths of remotely sensed imagery –Low impact to habitat –Objective and large geographic coverage –Varied resolution and band selection u Topography, thermal, hyperspectral –Repeatability u quantitative change versus qualitative u habitat dynamics versus snapshot –Benthic Habitats: expand new field, new technique u to basin river bed, wetlands, uplands u to water source, quality and levels

12 Landscape Level Links l Bathymetry and topography - merge l Tidal and sea level dynamics l River discharge, groundwater and estuarine water quality l Geology and sedimentary process l from Ecosystem to Microhabitat l Wetland biota with habitat l Estuarine health and productivity

13 Summary l Detailed habitat and substrate features l Management tool (FWS) –Road impact –Species habitat –Tide levels and flood l Coordinate with hydrology, biota, & geomorphic process studies l Need: –comprehensive mapping effort –hydrologic monitoring and models (GW) –spectral signatures of select features –identification of key issues

14 Potential Collaborators FWS FDEP FMRI UF USF SRWMD FGS USDA


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