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Bathymetric & Bird Surveys Ponds 9 & 10, Wash Ponds, and Napa Plant Site

Bathymetric & Bird Surveys Ponds 9 & 10, Wash Ponds, and Napa Plant Site. U.S. Geological Survey. Acknowledgements. USGS Western Ecological Research Center USGS Priority Ecosystem Studies, SF Bay Program

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Bathymetric & Bird Surveys Ponds 9 & 10, Wash Ponds, and Napa Plant Site

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  1. Bathymetric & Bird Surveys Ponds 9 & 10, Wash Ponds, and Napa Plant Site U.S. Geological Survey

  2. Acknowledgements • USGS Western Ecological Research Center • USGS Priority Ecosystem Studies, SF Bay Program • California Department of Fish and Game – Karen Taylor, Tom Huffman, Mike Sipes, Larry Wyckoff, Stacy Martinelli • Wildlife Conservation Board - Bonnie Turner, Tony Chappelle • Ducks Unlimited – Renee Spenst, Steve Carroll, Austin Payne, Russell Lowgren, Fritz Reid, Ron Galindo • State Coastal Conservancy – Amy Hutzel, Nadine Hitchcock, Betsy Wilson • SF Bay Joint Venture - Beth Huning, Christina Sloop • GAIA Consulting, Inc. - Susanne von Rosenberg • Cargil Salt - Butch Paredes • Bathy / Bird Field Support - Joel Shinn, Tanya Graham, Erin Flynn, Chris Potter, Laura Hollander, and Jeff Leichty

  3. Bathymetric Survey Overview • Goal: Collect baseline elevation data for Napa Plant Site, Wash ponds, & Ponds 9&10 • With future surveys we can document geomorphological changes that have occurred since restoration of tidal flow

  4. Bathymetry Survey Methods RTK Antenna Console with laptop & RTK Transducer Pelican Case with Navisound

  5. Bathymetry Survey Methods • 100m transects Ponds 9 & 10 Wash Ponds

  6. Bathymetry Survey Methods • 200m transects

  7. Ponds 9 & 10 ~ Current Elevation • Mean elevation: 0.71 ± 0.40m (mean ± SE) • Elevation Range: - 1.86 to 1.55m

  8. Wash Ponds ~ Current Elevation • Mean elevation: 1.06 ± 0.26m • Elevation Range: -0.46 to 1.66m

  9. NPS ~ Current Elevation • Mean elevation: 0.84 ± 0.31m • Elevation Range: -2.56 to 1.65m

  10. Low Tide Bird Surveys

  11. Low Tide Bird Surveys – Small Shorebirds Pond 910 Breach WASH Breach CRYST breach

  12. Low Tide Bird Surveys – Medium Shorebirds Pond 910 Breach WASH Breach CRYST breach

  13. Low Tide Bird Surveys – Ducks Dabbling Ducks Diving Ducks Pond 910 Breach CRYST breach Pond 910 Breach WASH Breach WASH Breach CRYST breach

  14. Low Tide - Crystallizers

  15. Low Tide – WASH ponds

  16. High Tide Bird Surveys – Shorebirds Small Shorebirds Medium Shorebirds

  17. High Tide Bird Surveys – Ducks Dabbling Ducks Diving Ducks

  18. Questions?

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