Lake Creek IFIM Appendix J Supplemental Information Contents • WUA for All Lifestages per Transect Grouping or Study Site • WUA for All Lifestages per Month • Transect Cross Sections with Original and Enhanced Substrate • WUA per Month for All Lifestages with Enhanced Substrate • Selected Slides from presentation to resource agencies, July 19, 2007
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Lake Creek IFIM Appendix J Supplemental Information Contents...Chinook/Coho Spawning Substrate Preference Steelhead Spawning Substrate Preference Cutthroat Spawning Substrate Preference
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Lake Creek IFIM
Appendix J
Supplemental Information
Contents • WUA for All Lifestages per Transect Grouping or Study Site • WUA for All Lifestages per Month • Transect Cross Sections with Original and Enhanced Substrate • WUA per Month for All Lifestages with Enhanced Substrate • Selected Slides from presentation to resource agencies, July 19,
2007
Lake Creek IFIM: SS1, T1-4 Fish Habitat (WUA) vs. Flow
January WUALake Creek IFIM (40% Spawning Enhancement) January: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rear
ing
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Stre
am)
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
2,000
Spaw
ning
WUA
(Sq.
Ft.
of
Habi
tat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek IFIM (60% Spawning Enhancement) January: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rear
ing
WUA
(Sq.
Ft.
of H
abita
t pe
r 100
0 Ft
. of S
tream
)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
Spaw
ning
WUA
(Sq.
Ft.
of
Habi
tat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
January WUALake Creek IFIM (80% Spawning Enhancement) January: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rear
ing
WUA
(Sq.
Ft.
of H
abita
t pe
r 100
0 Ft
. of S
tream
)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
Spaw
ning
WUA
(Sq.
Ft.
of
Hab
itat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) January: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WUA
(Sq.
Ft.
of H
abita
t pe
r 10
00 F
t. of
Str
eam
)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
Spa
wni
ng W
UA
(Sq.
Ft.
of
Habi
tat p
er 1
000
Ft. o
f Str
eam
)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
February WUALake Creek IFIM (40% Spawning Enhancement) February: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
2,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek IFIM (60% Spawning Enhancement) February: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
February WUALake Creek IFIM (80% Spawning Enhancement) February: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) February: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho Rearing Steelhead RearingWinter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
March WUALake Creek IFIM (40% Spawning Enhancement) March: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
3,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho RearingSteelhead Rearing Rainbow Winter RearingSteelhead Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Cutthroat Spawning Original (Rt Scale) Steelhead Spawning Original (Rt Scale)
Lake Creek IFIM (60% Spawning Enhancement) March: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
March WUALake Creek IFIM (80% Spawning Enhancement) March: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
3,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho RearingSteelhead Rearing Winter Trout RearingSteelhead Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Steelhead Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) March: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
3,000Sp
awni
ng W
UA
(Sq.
Ft.
ofH
abita
t per
100
0 Ft
. of
Stre
am)
Chinook Rearing Coho RearingSteelhead Rearing Rainbow Winter RearingSteelhead Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)Steelhead Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
April WUALake Creek IFIM (40% Spawning Enhancement) April: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
100
200
300
400
500
600
700
800
900
1,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho RearingSteelhead Rearing Cutthroat RearingRainbow Rearing Steelhead Spawning (Rt Scale)Steelhead Spawning Original (Rt Scale)
Lake Creek IFIM (60% Spawning Enhancement) April: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
200
400
600
800
1,000
1,200
1,400Sp
awni
ng W
UA
(Sq.
Ft.
ofH
abita
t per
100
0 Ft
. of
Stre
am)
Chinook Rearing Coho RearingSteelhead Rearing Cutthroat RearingRainbow Rearing Steelhead Spawning (Rt Scale)Steelhead Spawning Original (Rt Scale)
April WUALake Creek IFIM (80% Spawning Enhancement) April: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho RearingSteelhead Rearing Cutthroat RearingRainbow Rearing Steelhead Spawning (Rt Scale)Steelhead Spawning Original (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) April: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
H
abita
t per
100
0 Ft
. of
Stre
am)
0
500
1,000
1,500
2,000
2,500
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft. o
f St
ream
)
Chinook Rearing Coho RearingSteelhead Rearing Cutthroat RearingRainbow Rearing Steelhead Spawning (Rt Scale)Steelhead Spawning Original (Rt Scale)
Lake Creek IFIM (40% Spawning Enhancement) May: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er
1000
Ft.
of S
tream
)
0
100
200
300
400
500
600
700
800
900
1,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er
1000
Ft.
of S
tream
)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (60% Spawning Enhancement) May: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft.
of S
tream
)
0
200
400
600
800
1,000
1,200
1,400
Spaw
ning
WU
A (S
q.
Ft. o
f Hab
itat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (80% Spawning Enhancement) May: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er
1000
Ft.
of S
tream
)
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er
1000
Ft.
of S
tream
)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) May: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er
1000
Ft.
of S
tream
)
0
500
1,000
1,500
2,000
2,500
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat p
er
1000
Ft.
of S
tream
)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (40% Spawning Enhancement) June: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft.
of S
tream
)
0100
200300400500
600700800
9001,000
Spaw
ning
WU
A (S
q.
Ft. o
f Hab
itat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (60% Spawning Enhancement) June: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft.
of S
tream
)
0
200
400
600
800
1,000
1,200
1,400
Spaw
ning
WU
A (S
q.
Ft. o
f Hab
itat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (80% Spawning Enhancement) June: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft.
of S
tream
)
0
200
400
600
800
1,000
1,200
1,400
1,600
1,800
Spaw
ning
WU
A (S
q.
Ft. o
f Hab
itat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) June: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat p
er 1
000
Ft.
of S
tream
)
0
500
1,000
1,500
2,000
2,500
Spaw
ning
WU
A (S
q.
Ft. o
f Hab
itat p
er 1
000
Ft. o
f Stre
am)
Chinook Rearing Coho Rearing
Steelhead Rearing Cutthroat Rearing
Rainbow Rearing Steelhead Spawning (Rt Scale)
Steelhead Spawning Original (Rt Scale) Rainbow Spawning (Rt Scale)
July WUA
Lake Creek IFIM (60% Spawning Enhancement) July: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
December WUA
Lake Creek IFIM (40% Spawning Enhancement) December: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
0
500
1,000
1,500
2,000
2,500
3,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
Chinook Rearing Coho Rearing Steelhead Rearing
Winter Trout Rearing Coho Spawning Original Coho Spawning (Rt Scale)
Cutthroat Spawning (Rt Scale) Cutthroat Spawning Original
Lake Creek IFIM (60% Spawning Enhancement) December: Fish Habitat (WUA) vs.
Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
0
500
1,000
1,500
2,000
2,500
3,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
Chinook Rearing Coho Rearing Steelhead Rearing
Winter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)
Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
December WUA
Lake Creek IFIM (80% Spawning Enhancement) December: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
0
500
1,000
1,500
2,000
2,500
3,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
Chinook Rearing Coho Rearing Steelhead Rearing
Winter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)
Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek IFIM (100% Spawning Enhancement) December: Fish Habitat (WUA) vs. Flow
0
1,000
2,000
3,000
4,000
5,000
6,000
7,000
8,000
0 50 100 150 200 250
Steamflow in Cubic Feet Per Second (released from drop structure)
Rea
ring
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
0
500
1,000
1,500
2,000
2,500
3,000
Spaw
ning
WU
A (S
q. F
t. of
Hab
itat
per 1
000
Ft. o
f Ste
am)
Chinook Rearing Coho Rearing Steelhead Rearing
Winter Trout Rearing Coho Spawning (Rt Scale) Cutthroat Spawning (Rt Scale)
Coho Spawning Original (Rt Scale) Cutthroat Spawning Original (Rt Scale)
Lake Creek Study Sites and Reachesand Fish Distribution
1,000
1,500
2,000
2,500
3,000
3,500
0.0 0.5 1.0 1.5 2.0 2.5 3.0 3.5 4.0 4.5 5.0 5.5
RM
Elev
atio
n (f
t)
Rainbow
Steelhead
Chinook
Coho
Cutthroat
Reach 1Reach 2 Reach 3
Reach 4 Reach 5
SS1
SS2
SS3
Drop Structure
SS4
Barrier Barrier
Lake Creek Spawning Habitat
• Spawning Habitat is Extremely Limited in Lower Lake Creek– Of 34 transects:
• 19 have spawning habitat• 15 do not
– In the Anadromous Zone (Study Sites 1 & 2)• 4/9 in Study Site 1 have spawning substrate• 3/11 in Study Site 2 have spawning substrate
Large Wood per Mile in Wetted Channel
0
10
20
30
40
50
60
70
80
90
1 2 3 4 5
Reach
Woo
d pi
eces
/mile
SmallMediumLarge
Effects of Enhanced Spawning Substrate
Analysis Method• Selected potential spawning transects in
SS1(T1-3,7,8)• Substrate at all stations within the Mid
Flow WSE was set to HSI of 0.9 to 1.0• Remaining transects had original substrate• All transects kept original weighting• Results reflect All transects in SS (not only
enhanced)
Transect Weighting for Study Site 1
Transect Transect Description Weighting 1* Glide 16.67% 2* Run 16.67% 3* Low Gradient Cascade/Run 20.83% 4 Plunge Pool Tailout 2.08% 5 Plunge Pool 5.00% 6 Run 16.67% 7* Plunge Pool Tailout 2.08% 8* Low Gradient Cascade/Plunge Pool 15.00% 9 Plunge Pool 5.00%
Total 100% * = Transects with enhanced spawning substrate
Lake Creek IFIM August: Chinook Spawning Habitat (WUA) vs. Flow
0
1000
2000
3000
4000
5000
6000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second
WUA
(Sq.
Ft.
of H
abita
t per
100
0 Ft
. of
Stre
am)
Original 40% Enhanced 60% Enhanced 80% Enhanced 100% Enhanced
Lake Creek IFIM January: Coho Spawning Habitat (WUA) vs. Flow
0
500
1,000
1,500
2,000
2,500
3,000
3,500
4,000
4,500
5,000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second
WUA
(Sq.
Ft.
of H
abita
t per
100
0 Ft
. of
Stre
am)
Original 40% Enhanced 60% Enhanced 80% Enhanced 100% Enhanced
Lake Creek IFIM June: Steelhead Spawning Habitat (WUA) vs. Flow
0
500
1,000
1,500
2,000
2,500
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second
WUA
(Sq.
Ft.
of H
abita
t per
100
0 Ft
. of
Stre
am)
Original 40% Enhanced 60% Enhanced 80% Enhanced 100% Enhanced
Lake Creek IFIM February: Cutthroat Spawning Habitat (WUA) vs. Flow
0
100
200
300
400
500
600
700
800
900
1000
0 50 100 150 200 250
Streamflow in Cubic Feet Per Second
WUA
(Sq.
Ft.
of H
abita
t per
100
0 Ft
. of
Stre
am)
Original 40% Enhanced 60% Enhanced 80% Enhanced 100% Enhanced
Lake Creek IFIM: Study Site 1, Transects 1-9, Chinook Spawning WUA (5 transects converted to good spawning gravel)
– Reaches 1 (anadromous)• Placement of LWD structures to retain gravel• If needed, gravel recruitment stations• Monitoring enhancement to verify usefulness• Monitoring accretion to verify variation of inflow
What Looks Promising
• Other Benefits– Added LWD = better rearing (cover &
hydraulic complexity)– Added LWD = better holding for spawners
(cover & depth)– Added LWD = more hydraulic jumps, more
frequent and deeper pools– Added Boulder Clusters = better rearing