Current Status and Management of Coastal Cutthroat Trout ...
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Status and Management of Coastal Cutthroat Trout in Washington State James P. Losee and Steve Thiesfeld Washington Department of Fish and Wildlife
Transcript of Current Status and Management of Coastal Cutthroat Trout ...
Status and Management of Coastal Cutthroat Trout in Washington State
James P. Losee and Steve Thiesfeld
Washington Department of Fish and Wildlife
Background
• Resident
• Fluvial
• Adfluvial
• Anadromous
Outline
• Stock Status and Assessment Tools
• Management
• Future Work and Research
Coastal Cutthroat-Salmonid Stock Inventory (SaSI)
Stock Definition Criteria
1) Distinct spawning distribution.
2) Distinct temporal distribution (including
spawning or run-timing).
3) Distinct biological characteristics (e.g. size,
age structure, gene frequency
differences, etc.)
4) 47 collections sites run for allozyme
Electrophoresis identified 3 “stocks” with 40
“stock complexes”
40 Stock Complexes
• 1 is “Healthy”
• 7 are “Depressed”
• 0 are “Critical”
• 32 are “Unknown”
Blakely, A., Leland, B. and Ames, J. 2000. Salmonid Stock Inventory Coastal Cutthroat Trout. WDFW
Assessment Tools
Adult Trap Counts Redd Counts Juvenile Abundance
Stock Status-Puget Sound
18 Stock Complexes
• 1 is “Healthy”
• 17 are “Unknown”
Stock Assessment-Puget Sound
Tumwater Falls Hatchery
Return Year
1990 1995 2000 2005 2010 2015
Ad
ult
s P
asse
d
0
20
40
60
80
100
120Minter Creek Hatchery
Return Year
1990 1995 2000 2005 2010 2015
0
50
100
150
200
250
300
Data Courtesy of: Lee Pilon, Deirdre Bissonnette, Mark Downen, Clayton Kinsel
Skookum Creek
Return Year
1990 1995 2000 2005 2010 2015
Red
ds
Co
un
ted
0
20
40
60
80
100
120
140
160Kennedy Creek
Return Year
1990 1995 2000 2005 2010 2015
0
10
20
30
40
50
60L. Quilcene
Return Year
1995 2000 2005 2010 2015
0
10
20
30
40
50
Big Beef Creek
Outmigration Year
1990 1995 2000 2005 2010 2015
Sm
olt
Ab
un
dan
ce
600
800
1000
1200
1400
1600
1800Stavis Creek
1990 1995 2000 2005 2010 2015
Little Anderson Creek
1990 1995 2000 2005 2010 2015
Stock Status- Washington Coast
John McMillan
12 Stock Complexes
• 12 are “Unknown”
Stock Assessment-Washington Coast
Hoquiam R.
Return Year
1980 1990 2000 2010
0
20
40
60
80
100
120
140Bingham C.
Return Year
1980 1990 2000 2010
Ad
ult
s P
asse
d
0
10
20
30
40
50
60
Bingham Creek
Outmigration Year
1980 1990 2000 2010
Sm
olt
Ab
un
dan
ce
0
50
100
150
200
250
300
350
Indian Creek
1980 1990 2000 2010
0
50
100
150
200Irely Creek
Return Year
1980 1990 2000 2010
Red
ds
Cou
nte
d
0
20
40
60
80
100
120
Data Courtesy of: Devin West, Quinault Indian Tribe, Bob Vadas, John McMcMillan
Stock Status-Columbia R.
Josua Holowatz
11 Stock Complexes
• 7 are “Depressed”
• 4 are “Unknown”
Josua Holowatz
Stock Assessment-Columbia R.
Redd monitoring data not available in Columbia R.
Kalama River
Return Year
1980 1990 2000 2010
Adult
s P
asse
d
0
10
20
30
40
50
60Cedar Creek
Return Year
1980 1990 2000 2010
0
100
200
300
400Toutle River
Return Year
1980 1990 2000 2010
0
20
40
60
80
100
120
140
160
180
Abernathy C.
Outmigration Year
1980 1990 2000 2010
Sm
olt
Abu
nd
ance
0
500
1000
1500
2000
2500
3000Germany C.
Outmigration Year
1980 1990 2000 2010
0
200
400
600
800
1000
1200Mayfield
Outmigration Year
1980 1990 2000 2010
0
200
400
600
800
1000
1200
Data Courtesy of: Thomas Buehrens, Todd Hillson, Josua Holowatz, Jamie Lamperth, John Serl, Chris Wagemann
___________________________________________________________1955 1960 1965 1970 1975 1980 1985 1990 1995 2000 2005
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________________________
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1986; Two fish over 12”
1987; Two fish over 14”
1980; Two fish over 10”
1999; Catch and release- Marine waters
1955; 15 fish not to exceed 7.5lbs plus 1 fish
1973; 6 lbs plus 1 fish
Management in Marine Waters
New/ongoing monitoring work
• Beach Seining monitoring
• Snorkel Surveys
• Online sea lice reporting
• Initiate comparison studies
Eld Inlet 2015
<200
200-
250
250-
300
300-
350
350-
400
400-
450
450-
500
500-
550
Co
un
t
0
20
40
60
80
100
120
McLane Creek 1986/87
<200
200-
250
250-
300
300-
350
350-
400
400-
450
450-
500
500-
550
550-
600
Co
un
t
0
5
10
15
20
25
30
0 times
1 time
2 times
3 times
4 times
5 times
Eld Inlet 2015
<200
200-
250
250-
300
300-
350
350-
400
400-
450
450-
500
500-
550
Co
un
t
0
20
40
60
80
100
120
McLane Creek 1986/87
<200
200-
250
250-
300
300-
350
350-
400
400-
450
450-
500
500-
550
550-
600
Co
un
t
0
5
10
15
20
25
30
0 times
1 time
2 times
3 times
4 times
5 times
Eld Inlet 2015
<200
200-
250
250-
300
300-
350
350-
400
400-
450
450-
500
500-
550
Co
un
t
0
20
40
60
80
100
120
McLane Creek 1986/87
<200
200-
250
250-
300
300-
350
350-
400
400-
450
450-
500
500-
550
550-
600
Co
un
t
0
5
10
15
20
25
30
0 times
1 time
2 times
3 times
4 times
5 times
Skookum Creek Spawning Grounds
Current Research
• Spawn timing
• Movement
• Life history diversity
• Abundance
• Collaboration with others studying anadromous trout
Thank you!
