water quality and steelhead trout in the lower santa ynez river … · 2016-07-25 · 2016 esri...
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Water Quality and Steelhead Trout in the Lower Santa
Ynez River Watershed
Timothy H. RobinsonCachuma Operation and Maintenance
Board
2016International Users Conference
United We Map
SessionExploring Fisheries and Fish Habitat
Southern SteelheadOncorhynchus mykiss
Southern California Steelhead Recovery Plan, January 2012
The Cachuma ProjectCachuma Operation and Maintenance Board
(Joint Powers Agency)Objectives:• Water delivery (reservoirs, tunnels, conduit, etc.)• Resource management (water and biological species/habitat)
Santa Ynez ID#1
DISTRICTSCarpinteria Valley GoletaMontecito
Santa Barbara
Southern Steelhead – Endangered Species List (1997)
15 Reasonable and Prudent Measures (RPMs):• Monitoring (migrant trapping, snorkel and redd surveys,
diel and spot water quality and flow monitoring, habitat classification, etc)
• River target flows• Passage supplementation• Habitat quality improvement• Migration barrier fixes (11)• Reporting• Outreach• Adaptive management
Cachuma Project Biological Opinion (NMFS, 2000)
Monitoring• Trapping (January – May): Salsipuedes and Hilton Creeks and mainstem
near Solvang• Redd Surveys (February – May): tributaries and mainstem• Snorkel Surveys (Spring, Summer and Fall): tributaries and mainstem• Stream/River Discharge (year round): USGS and spot flow measurements• Water Quality (dry season, May – November): temperature, dissolved
oxygen concentration, turbidity, specific conductance, lake profiles, stratified pools, and ambient air temperature (diel and spot measurements)
• Habitat Quality (as needed or yearly): habitat mapping and photo points• Restoration Projects (as needed or annually): pre-, during- and post-
construction as well as performance monitoring over time
Trapping
Redds
Water Quality
Stratified Pools
Snorkeling
HCWS
StillingBasin
San Lucas Ranch
USBR
CRP
LSYR-0.5
LSYR-0.6
LSYR-0.7
Outlet Works
LSYR-3.2
Hwy 154 Bridge
LSYR-0.3HC-0.1
LSYR-0.01
Water Quality + Flow Monitoring Sites:Single unit (T)Vertical Array (T + DO)USGS gauge (Z, T + DO)PT-temp unit (Z + T)
LSYR-10.5
Alisal Bridge
‐50
‐40
‐30
‐20
‐10
01 2 4 8 16 32 64
Dep
th (ft)
Turbidity (NTU)
3/3/16 ‐ Elev. 664.944/11/16 ‐ Elev. 665.12
‐60
‐50
‐40
‐30
‐20
‐10
00 2 4 6 8 10 12
Dep
th (ft)
Dissolved Oxygen (mg/l)
3/3/16 ‐ Elev. 664.944/11/16 ‐ Elev. 665.12
‐60
‐50
‐40
‐30
‐20
‐10
08 10 12 14 16 18 20 22 24 26
Dep
th (ft)
Temperature (°C)
3/3/16 ‐ Elev. 664.944/11/16 ‐ Elev. 665.12
(a)
(b)
(c)
Lake Cachuma
Trapping data
0
10
20
30
40
50
60
70
80
90
100
0
1
2
3
4
5
6
7
2/16/201
6
2/18/201
6
2/20/201
6
2/22/201
6
2/24/201
6
2/26/201
6
2/28/201
6
3/1/2016
3/3/2016
3/5/2016
3/7/2016
3/9/2016
3/11/201
6
3/13/201
6
3/15/201
6
3/17/201
6
3/19/201
6
3/21/201
6
3/23/201
6
3/25/201
6
3/27/201
6
3/29/201
6
3/31/201
6
4/2/2016
4/4/2016
4/6/2016
4/8/2016
4/10/201
6
4/12/201
6
4/14/201
6
Cumulative Total
Num
ber C
aptured
HU=7
HD=86
Cumulative Total
Water Quality – Thermographs – Stilling Basin
10
12
14
16
18
20
22
24
26
28
304/1/2015
4/15/201
5
4/29/201
5
5/13/201
5
5/27/201
5
6/10/201
5
6/24/201
5
7/8/2015
7/22/201
5
8/5/2015
8/19/201
5
9/2/2015
9/16/201
5
9/30/201
5
10/14/20
15
10/28/20
15
11/11/20
15
11/25/20
15
12/9/201
5
12/23/20
15
Tempe
rature (°C)
Maximum
Average
Minimum
Stilling Basin Wall – Surface 1-Foot
10
12
14
16
18
20
22
24
26
28
30
4/1/2015
4/15/201
5
4/29/201
5
5/13/201
5
5/27/201
5
6/10/201
5
6/24/201
5
7/8/2015
7/22/201
5
8/5/2015
8/19/201
5
9/2/2015
9/16/201
5
9/30/201
5
10/14/20
15
10/28/20
15
11/11/20
15
11/25/20
15
12/9/201
5
12/23/20
15
Tempe
rature (°C)
Maximum
Average
Minimum
Stilling Basin Wall – Surface 8-Foot
10
12
14
16
18
20
22
24
26
28
30
4/1/2015
4/15/201
5
4/29/201
5
5/13/201
5
5/27/201
5
6/10/201
5
6/24/201
5
7/8/2015
7/22/201
5
8/5/2015
8/19/201
5
9/2/2015
9/16/201
5
9/30/201
5
10/14/20
15
10/28/20
15
11/11/20
15
11/25/20
15
12/9/201
5
12/23/20
15
Tempe
rature (°C)
Maximum
Average
Minimum
Stilling Basin Wall – Surface 16-Foot
10
12
14
16
18
20
22
24
26
28
30
4/1/2015
4/15/201
5
4/29/201
5
5/13/201
5
5/27/201
5
6/10/201
5
6/24/201
5
7/8/2015
7/22/201
5
8/5/2015
8/19/201
5
9/2/2015
9/16/201
5
9/30/201
5
10/14/20
15
10/28/20
15
11/11/20
15
11/25/20
15
12/9/201
5
12/23/20
15
Tempe
rature (°C)
Maximum
Average
Minimum
Stilling Basin Wall – Surface 24-Foot
WR89-18 Release
WR89-18 Release
WR89-18 ReleaseWR89-18 Release
Thermograph repositioned – may have been laying on the bottom
12
14
16
18
20
22
24
26
28
M J J A S O
Tem
pera
ture
(°C
)
Month
Lower Hilton Creek Maximum Temperatures 1998-2014
1998200020012002200320042005200620072008200920102011201220132014
Canopy Established
Before HCWS Creek Dried
No Canopy
Hilton Creek Canopy Cover Growth – water quality
‐90
‐80
‐70
‐60
‐50
‐40
‐30
‐20
‐10
08 10 12 14 16 18 20 22 24 26
Dep
th (ft)
Temperature (°C)
3/18/15 ‐ Elev. 688.124/29/15 ‐ Elev. 687.026/11/15 ‐ Elev. 685.227/13/15 ‐ Elev. 683.678/31/15 ‐ Elev. 674.499/23/15 ‐ Elev. 670.2310/27/15 ‐ Elev. 667.993/3/16 ‐ Elev. 664.944/11/16 ‐ Elev. 665.12
‐90
‐80
‐70
‐60
‐50
‐40
‐30
‐20
‐10
00 2 4 6 8 10 12
Dep
th (ft)
Dissolved Oxygen (mg/l)
3/18/15 ‐ Elev. 688.124/29/15 ‐ Elev. 687.026/11/15 ‐ Elev. 685.227/13/15 ‐ Elev. 683.678/31/15 ‐ Elev. 674.499/23/15 ‐ Elev. 670.2310/27/15 ‐ Elev. 667.993/3/16 ‐ Elev. 664.944/11/16 ‐ Elev. 665.12
(a)
(b)
10/27/15 bottom temp of 20.32 °C
Lake Profiles at Lake Cachuma
Stilling Basin – Thermal burping
0
1
2
3
4
5
6
7
8
15
16
17
18
19
20
21
22
23
6/1/13 6/4/13 6/7/13 6/10/13 6/13/13 6/16/13 6/19/13 6/22/13 6/25/13 6/28/13
Flow
(cfs)
Tempe
rature °C
Hilton Creek Flow (USBR)
Outlet Works Flow (USBR)
Water Temperature Below Long Pool (USGS)
0
2
4
6
8
10
12
14
16
18
16
18
20
22
24
26
28
30
32
5/1/15
5/11
/15
5/21
/15
5/31
/15
6/10
/15
6/20
/15
6/30
/15
7/10
/15
7/20
/15
7/30
/15
8/9/15
8/19
/15
8/29
/15
9/8/15
9/18
/15
9/28
/15
10/8/15
10/18/15
10/28/15
Dissolved
Oxygen (m
g/L); PT Dep
th (ft)
Tempe
rature (◦C)
S‐1 Thermo M‐1 ThermoM‐2 Thermo B‐1 ThermoSurface Dissolved Oxygen Middle Dissolved OxygenBottom Dissolved Oxygen
Long Pool – Water Quality Monitoring
0
1
2
3
4
5
6
7
8
9
10
10
12
14
16
18
20
22
24
26
28
30
07/31/15
08/05/15
08/10/15
08/15/15
08/20/15
08/25/15
08/30/15
09/04/15
09/09/15
Water Dep
th at Tailout (ft)
Tempe
rature (°C)
S‐1 Surface TempM‐1 Middle TempM‐2 Middle TempB‐1 Bottom TempPT Elev (ft)
0
1
2
3
4
5
6
7
8
9
10
0
2
4
6
8
10
12
07/31/15
08/05/15
08/10/15
08/15/15
08/20/15
08/25/15
08/30/15
09/04/15
09/09/15
Water Dep
th at Tailout (ft)
Dissolved Oxygen (m
g/L)
S‐1 Dissolved Oxygen
M‐1 Dissolved Oxygen
M‐2 Dissolved Oxygen
B‐1 Dissolved Oxygen
PT Elev (ft)
(a)
(b)
LSYR-0.1Stilling Basin
6
7
8
9
10
11
12
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Salinity
(ppt)
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
0
2
4
6
8
10
12
14
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Dissolved
Oxygen (m
g/l)
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
6
6.5
7
7.5
8
8.5
9
9.5
10
1 3 5 7 9 11 13 15 17 19 21 23 25 27
pH
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
16
17
18
19
20
21
22
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Tempe
rature (°C)
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
(a) (b)
(c) (d)
10
15
20
25
30
35
40
45
50
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Turbidity
(NTU
)
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
15
16
17
18
19
20
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Cond
uctiv
ity (m
S/cm
)
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
6
7
8
9
10
11
12
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Total D
issolved
Solids (g/l)
Downstream Upstream
SurfaceMiddleBottom
Measurement Sites
0
1
2
3
4
5
6
7
8
9
10
1 3 5 7 9 11 13 15 17 19 21 23 25 27
Dep
th at Each Site (fee
t)
Downstream Upstream
Depth
Measurement Sites
(a) (b)
(c) (d)
Vertical Diel Profile at Cross Section C
16
17
18
19
20
21
22
23
11:15 13:30 15:45 18:00 20:15 22:30 0:45 3:00 5:15 7:30 9:45 12:00
Tempe
rature °C
Surface
Middle
Bottom
0
2
4
6
8
10
12
14
11:15 13:30 15:45 18:00 20:15 22:30 0:45 3:00 5:15 7:30 9:45 12:00
Dissolved
Oxygen (m
g/l)
Surface
Middle
Bottom
(a)
(b)
Conclusions• Drought – difficult for southern
steelhead
• Water quality monitoring – more important than ever (diel)
• Creative and extreme measures are needed
• Climate change: expect extremes (the new norm)
• Human consumption: reduce, update, reclaim and be creative- Desalinization: not sustainable
• Future: conserve and think-act dry Endangered Santa Ynez RiverSouthern Steelhead
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