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  1. Ongoing work of the Reservoir Fisheries Habitat Partnership Presented by Rebecca M. Krogman Lake Red Rock, Iowa

  2. Acknowledgments • L. E. (Steve) MirandaMississippi Cooperative Fish and Wildlife Research Unit • W. Reed GreenUSGS Arkansas Water Science Center • Kirk RodgersPh.D. Student, University of Arkansas – Pine Bluff • Funding provided by U.S. Fish and Wildlife Service • Jeff BoxruckerRFHP Science & Data Committee Chair, Oklahoma Department of Wildlife Conservation • Mike ArmstrongRFHP Executive Committee • Cecilia LewisRFHP Coordinator • John Taylor • Karl Hess • Gary Whelan • Many, many others

  3. Reservoirs are… • Artificial • Nationwide • Highly useful and widely utilized Folsom Dam, California

  4. Impaired!

  5. Approach Impairment metrics Environmental descriptors

  6. Impairment Metrics L. E. (Steve) Miranda Rebecca M. Krogman Hydrillain Lake Conroe, TX

  7. Background • Fish Habitat Degradation in U.S. Reservoirs, Fisheries (Miranda et al. 2010) • An index of reservoir habitat impairment, Environmental Monitoring & Assessment (Miranda and Hunt) Impairment Metrics Miranda and Krogman

  8. Survey Methods: Design

  9. Survey Methods: Design • ~100 variables • Scope • Reservoirs >250 acres • Conterminous U.S. • Potentially 4,331 data points • Sent to reservoir fishery scientists Impairment Metrics Miranda and Krogman

  10. Survey Methods: Distribution Impairment Metrics Miranda and Krogman

  11. Survey Methods: Design Impairment Metrics Miranda and Krogman

  12. Survey Methods: Design • Qualified scientists with direct experience • Exclusion of unfamiliar reservoirs • Analysis of responses by experience • Definitions • Other examples Impairment Metrics Miranda and Krogman Iowa DNR hard at work on Pool 13, Mississippi River

  13. Pilot Survey: Oklahoma • Oklahoma Department of Wildlife Conservation • 96 reservoirs • ReservoirResearch.org Impairment Metrics Miranda and Krogman

  14. Environmental Descriptors Dr. W. Reed Green Kirk Rodgers Major land use patterns

  15. Data Availability • Eight-state Classification/Metrics • Arkansas, California, Iowa, Kansas, Kentucky, North Carolina, Oklahoma, Texas • Initial investigation of the appropriate environmental metrics to gather • Impoundment date • Watershed characteristics • Reservoir dimensions • Water quality measurements Environmental Descriptors Green and Rodgers

  16. Datasets • Spatially Referenced Regression on Watershed Attributes (SPARROW) • National Inventory of Dams (NID) • National Hydrography Dataset (NHD+) • Geographic Names Information System • Reservoir Sedimentation Survey Information System (RESIS) Environmental Descriptors Green and Rodgers

  17. State Dam Name State Id NIDID Longitude Latitude Section Count River City Distance to Nearest City Owner Name Owner Type Dam Design Private or Public Core Foundation Purpose Year completed Year modified Dam length Dam height Structural height Elevation Hydraulic head/Maximum depth NID Height Database Fields Environmental Descriptors Green and Rodgers Not all fields will be used in metric analysis

  18. Other Structure ID Condition Assessment Detail State Regulatory Agency Federal Agency Involvement in Funding Federal Agency Involvement in Design Federal Agency Involvement in Construction Federal Agency Involvement in Regulatory Federal Agency Involvement in Inspection Federal Agency Involvement in Operation Federal Agency Owner Federal Agency Involvement-Other Source Agency Date Submitted Congressperson Name Party Congressional District Reachcode Measure Source Origin Source Data GNIS ID Shoreline Development Sedimentation (% of original volume) if available Database Fields (cont.) Environmental Descriptors Green and Rodgers Not all fields will be used in metric analysis

  19. Normal Discharge Maximum Discharge Normal Storage/Volume NID Storage/Volume Surface Area Drainage Area Relative Depth Mean Depth Development of Volume Index of Basin Permanence Maximum Length/Fetch Mean Width Maximum Width Residency Time/Flushing Rate Downstream Hazard Potential Emergency Action Plan Inspection Date Inspection Frequency State Regulated Dam State Regulatory Agency Spillway Type Spillway Width Outlet Gates Volume of Dam (Cubic Yards) Number of Locks Length of Locks (Feet) Lock width Database Fields (cont.) Environmental Descriptors Green and Rodgers Not all fields will be used in metric analysis

  20. New Database for the Southeast Environmental Descriptors Once satisfied with results, expand to the entire lower 48 states.

  21. Data Analysis • Integration of Green and Rodgers’ work, and Miranda and Krogman’s work • Techniques • Cluster analysis • Geospatial analysis • Discriminant analysis • Canonical correlation analysis

  22. Potential Applications • Make quantitative comparisons among reservoirs • Understand geospatial relationships • Guide the decision-making process Fishing below J.T. Meyers Dam

  23. Questions or comments? Hoover Dam