1 intensively monitored watersheds validation monitoring for salmon habitat restoration
TRANSCRIPT
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Intensively Monitored Intensively Monitored WatershedsWatersheds
Validation Monitoring for Salmon Habitat Validation Monitoring for Salmon Habitat RestorationRestoration
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BackgroundBackground Can habitat restoration produce Can habitat restoration produce
more fish (outmigrants)?more fish (outmigrants)?
Can we use the information Can we use the information gained to inform and guide gained to inform and guide restoration efforts?restoration efforts?
Both require that we know the Both require that we know the causal mechanisms affecting causal mechanisms affecting productionproduction
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Strait of Juan de Fuca Skagit River Estuary
Hood Canal Complex
Lower Columbia Complex
Location of Study Watersheds
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IMW Concept-Coho IMW Concept-Coho Steelhead Steelhead ComplexesComplexes
Long-term, paired-watershed experiments Long-term, paired-watershed experiments Fish and habitat responses to treatments are Fish and habitat responses to treatments are
conducted at multiple spatial scales from reach to conducted at multiple spatial scales from reach to whole watershedwhole watershed
Coho and steelhead Coho and steelhead Species with at least 1 year of freshwater Species with at least 1 year of freshwater
residencyresidency Often utilize small watersheds for spawning and Often utilize small watersheds for spawning and
rearingrearing Treatments can be applied to a large proportion Treatments can be applied to a large proportion
of the watershedof the watershed Increased potential to detect a response by the Increased potential to detect a response by the
fishfish
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Design
Before-After/Control-Impact Hierarchical monitoring scheme at nested spatial
scales Reach scale-effects of specific restoration
actions Sub basin scale-effects of multiple restoration
actions Basin scale-cumulative effects of all actions
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Reach Scale
Project-specific monitoring to determine effectiveness
Example: LWD addition Habitat effects Juvenile abundance Survival to smolting
Reference Basin
Treatment Basins
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Sub-basin Scale
Look for opportunities to treat entire sub basins within treatment basin.
Use reference sub basin within reference basin and possibly within treatment basin.
Reference Basin
Treatment Basins
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Basin Scale
Most appropriate scale to assess fish population response Ultimate measure of success is downstream migrant
(smolt) production Also assess habitat, juvenile (parr) and adult abundance at
this scale
Reference Basin
Treatment Basins
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TreatmentsTreatments Wood placementWood placement Off-channel habitat creationOff-channel habitat creation Barrier removalBarrier removal Nutrient augmentation?Nutrient augmentation? Land use - urbanizationLand use - urbanization
StatusStatus
SJF complex - Habitat treatments completed SJF complex - Habitat treatments completed
in 2007in 2007 Skagit Estuary - Treatments began in 2000Skagit Estuary - Treatments began in 2000 Hood Canal (L. Anderson Cr.) - Began in 2007Hood Canal (L. Anderson Cr.) - Began in 2007 L. Columbia - Restoration plan due in 2008L. Columbia - Restoration plan due in 2008
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Strait of Juan de FucaStrait of Juan de FucaSome Results from Years 1-4Some Results from Years 1-4
Timing of juvenile fish emigration (West Twin and East Twin)
Influence of wood addition on coho survival (West and East Twin)
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1992 1995 1997 200330
40
50
60
70
% p
ools
Km 3.4-6.0Km 1.7-2.9
Deep Cr-LWD projectsDeep Cr-LWD projects
1992 1995 1997 200320
30
40
50
60
Wid
th:D
epth
rat
io Km 3.4-6.0Km 1.7-2.9
% pool habitatWidth:Depth
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East Twin-LWD projectsEast Twin-LWD projects
Width:Depth % pool habitat
2002 200710
15
20
25
30
Wid
th:D
epth
rat
io
Km 1.8-2.7Km 0.0-1.8
2002 200720
30
40
50
% p
ools
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East Twin - Cohon = 878
01020304050607080
26-A
ug
26-S
ep
26-O
ct
26-N
ov
26-D
ec
26-J
an
26-F
eb
26-M
ar
26-A
pr
26-M
ay
# o
f ta
gged f
ish
Coho Emigration from East Coho Emigration from East Twin RiverTwin River
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Effects on Coho SurvivalEffects on Coho Survival
East Twin (Restored)
West Twin
Fall Migrants 15-28% 10-13%
Survival to Spring 6-10% 5-10%
Overall survival 23-31% 14-20%
Marine survival 5% (38 fish) 2% (12)
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Skagit River DeltaSkagit River Delta
Hw: Restoring estuary habitat increases salmon production (connectivity and capacity)
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2
3
4
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TreatmentsTreatmentsSkagit EstuarySkagit Estuary Dike removal/flooding to restore Dike removal/flooding to restore
habitathabitat Connectivity-improve access to existing Connectivity-improve access to existing
habitathabitat Barrier removal-self regulating Barrier removal-self regulating
tidegates, other infrastructuretidegates, other infrastructure Long lead times and complex planning Long lead times and complex planning
required but hundreds of acres required but hundreds of acres
affected. affected.
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Deepwater SloughDeepwater Slough (dike removal)(dike removal)
A - Blind Channel Habitat, 2001
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
March April May June July
Wild
juve
nile
Ch
inoo
k sa
lmon
per
h
ecta
re
Reference
Treatment
B - Blind Channel Habitat, 2002
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
March April May June July
Wild
juve
nile
Ch
inoo
k sa
lmon
per
h
ecta
re
Reference
Treatment
C - Blind Channel Habitat, 2003
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
March April May June July
Wild
juve
nile
Chi
nook
sal
mon
per
hect
are Reference
Treatment
E - Distributary Channel Habitat, 2002
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Mar Apr May Jun Jul
Wild
juve
nile
Ch
inoo
k sa
lmon
per
h
ecta
re
Reference
Treatment
F - Distributary Channel Habitat, 2003
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Mar Apr May Jun
Wild
juve
nile
Ch
inoo
k sa
lmon
per
h
ecta
re
Reference
Treatment
D - Distributary Channel Habitat, 2001
0
5,000
10,000
15,000
20,000
25,000
30,000
35,000
Mar Apr May Jun Jul
Wild
juve
nile
Chi
nook
sal
mon
per
hect
are Reference
Treatment
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Juvenile Chinook salmon, 2004
0.0 0.3 0.0 0.0 0.00.0 0.3 0.2 0.0 0.00.0
2.0
4.0
6.0
8.0
10.0
2 3 4 5 6 7 8
Month
Ave
rage
fis
h pe
r se
t Upstream TG
Downstream TG
Juvenile Chinook salmon, 2005
1.00.0 0.0 0.0 0.0
0.71.7
4.7
2.1
0.7
0.0
2.0
4.0
6.0
8.0
10.0
2 3 4 5 6 7 8
Month
Ave
rage
fis
h pe
r se
t Upstream TG
Downstream TG
Juvenile Chinook salmon, 2006
0.00.7
3.02.3
0.3 0.0 0.0
1.7
8.0
6.0
3.1
1.71.1
0.30.0
2.0
4.0
6.0
8.0
10.0
2 3 4 5 6 7 8
Month
Ave
rage
fis
h pe
r se
t Upstream TG
Downstream TG
Fornsby SRTFornsby SRT(opened in 2006)(opened in 2006)
SRT
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Habitat RestorationHabitat Restoration
Passive Restoration Active Restoration
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Frequent ConcernsFrequent Concerns
When will results be available? When will results be available?
What magnitude of change can What magnitude of change can be detected?be detected?
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Coho production Power Coho production Power AnalysisAnalysis
Post-restorationPost-restoration
Pre-restorationPre-restoration
Stavis Cr
0
2000
4000
6000
Se
ab
eck C
r
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Seabeck Cr-Minimum Seabeck Cr-Minimum PP
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ConclusionsConclusions
Well-designed monitoring Well-designed monitoring program can detect relatively program can detect relatively small (20-40%) increases in small (20-40%) increases in smolt productionsmolt production
Understanding why is critical to Understanding why is critical to differentiate between restoration differentiate between restoration impacts and other factorsimpacts and other factors
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IMW Program IMW Program ParticipantsParticipants
Oversight Committee:Oversight Committee: Washington Dept. of Ecology - Washington Dept. of Ecology - Bill EhingerBill Ehinger Washington Dept. of Fish and Wildlife - Washington Dept. of Fish and Wildlife - Tim QuinnTim Quinn NOAA Fisheries (NWFSC) - NOAA Fisheries (NWFSC) - Phil Roni, Correigh Phil Roni, Correigh
GreeneGreene Lower Elwha Klallam Tribe - Lower Elwha Klallam Tribe - Mike McHenryMike McHenry Skagit River System Coop - Skagit River System Coop - Eric BeamerEric Beamer Weyerhaeuser - Weyerhaeuser - Bob BilbyBob Bilby
IMW Partners: IMW Partners:
Lower Columbia Fish Recovery Board -Lower Columbia Fish Recovery Board - Jeff Breckel Jeff Breckel
Hood Canal Coordinating Council -Hood Canal Coordinating Council - Richard Richard BrocksmithBrocksmith
Salmon Recovery Funding BoardSalmon Recovery Funding Board