u.s. department of the interior u.s. geological survey bathymetric & bird surveys ponds 9 &...
TRANSCRIPT
U.S. Department of the InteriorU.S. Geological Survey
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
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
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
Bathymetry Survey Methods
Pelican Case with Navisound
RTK Antenna
Console with
laptop & RTK
Transducer
Bathymetry Survey Methods
100m transects
Ponds 9 & 10 Wash Ponds
Bathymetry Survey Methods
200m transects
Ponds 9 & 10 ~ Current Elevation
Mean elevation: 0.71 ± 0.40m (mean ± SE)
Elevation Range: - 1.86 to 1.55m
Wash Ponds ~ Current Elevation
Mean elevation: 1.06 ± 0.26m
Elevation Range: -0.46 to 1.66m
NPS ~ Current Elevation
Mean elevation: 0.84 ± 0.31m
Elevation Range: -2.56 to 1.65m
Low Tide Bird Surveys
Low Tide Bird Surveys – Small Shorebirds
Pond 910 Breach CRYST breachsu
mm
er 2
008
fall 2
008
winter
200
9
sprin
g 20
09
sum
mer
200
9
fall 2
009
winter
201
0
sprin
g 20
10
sum
mer
201
0
fall 2
010
0
500
1000
1500
2000
2500
CRYST Avg.
WASH Avg.
910 Avg.
WASH Breach
sum
mer
200
8
fall 2
008
winter
200
9
sprin
g 20
09
sum
mer
200
9
fall 2
009
winter
201
0
sprin
g 20
10
sum
mer
201
0
fall 2
010
0
50
100
150
200
250
CRYST Avg.
WASH Avg.
910 Avg.
Low Tide Bird Surveys – Medium Shorebirds
Pond 910 Breach CRYST breachWASH Breach
sum
mer
200
8
fall 2
008
winter
200
9
sprin
g 20
09
sum
mer
200
9
fall 2
009
winter
201
0
sprin
g 20
10
sum
mer
201
0
fall 2
010
0
100
200
300
400
500
600
CRYST Avg.
WASH Avg.
910 Avg.
Low Tide Bird Surveys – Ducks
Pond 910 BreachCRYST breachWASH Breach
sum
mer
200
8
fall 2
008
winter
200
9
sprin
g 20
09
sum
mer
200
9
fall 2
009
winter
201
0
sprin
g 20
10
sum
mer
201
0
fall 2
010
0
200
400
600
800
1000
1200
1400
1600
CRYST Avg.
WASH Avg.
910 Avg.
Dabbling Ducks Diving Ducks
CRYST breachPond 910 Breach
WASH Breach
Low Tide - Crystallizers
Low Tide – WASH ponds
sum
mer
200
4
winter
200
5
sum
mer
200
5
winter
200
6
sum
mer
200
6
winter
200
7
sum
mer
200
7
winter
200
8
sum
mer
200
8
winter
200
9
sum
mer
200
9
winter
201
0
sum
mer
201
0
02000400060008000
1000012000140001600018000
CRYST Avg.
WASH Avg.
910 Avg.
High Tide Bird Surveys – Shorebirds
Small Shorebirds
sum
mer
200
4
winter
200
5
sum
mer
200
5
winter
200
6
sum
mer
200
6
winter
200
7
sum
mer
200
7
winter
200
8
sum
mer
200
8
winter
200
9
sum
mer
200
9
winter
201
0
sum
mer
201
0
050
100150200250300350400450500
CRYST Avg.
WASH Avg.
910 Avg.
Medium Shorebirds
sum
mer
200
4
sprin
g 20
05
winter
200
6
fall 2
006
sum
mer
200
7
sprin
g 20
08
winter
200
9
fall 2
009
sum
mer
201
0
0
100
200
300
400
500
600
700
CRYS Avg.
WASH Avg.
910 Avg.
High Tide Bird Surveys – Ducks
Diving DucksDabbling Ducks
sum
mer
200
4
winter
200
5
sum
mer
200
5
winter
200
6
sum
mer
200
6
winter
200
7
sum
mer
200
7
winter
200
8
sum
mer
200
8
winter
200
9
sum
mer
200
9
winter
201
0
sum
mer
201
0
0
50
100
150
200
250
CRYS Avg.
WASH Avg.
910 Avg.
Questions?