Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile...
Transcript of Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile...
![Page 1: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/1.jpg)
Movement of Movement of AdfluvialAdfluvial Bull Trout Bull Trout in Chester Morse Lakein Chester Morse Lake
Heidy Barnett and Dwayne Paige, Seattle Public Utilities
and
Eric Jeanes and Catherine Morello, R2 Resource Consultants
![Page 2: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/2.jpg)
• Natural falls barrier downstream Chester Morse Lake blocks anadromous/migratory species
• CRMW managed under 50-year HCP (signed 2000)
•No commercial harvest, active restoration (forest, aquatic, roaddecommissioning)
![Page 3: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/3.jpg)
Chester Morse Lake Fish CommunityChester Morse Lake Fish CommunityBull Trout Bull Trout –– located in deep parts of lake but located in deep parts of lake but also along shoreline also along shoreline
Rainbow Trout Rainbow Trout –– primarily located in littoral primarily located in littoral zone of lake and deltaszone of lake and deltas
Pygmy Whitefish Pygmy Whitefish –– food source for food source for adfluvialadfluvial bull bull trout, reside in deepest part of lake (bottom 2.5 trout, reside in deepest part of lake (bottom 2.5 meters)meters)
ShortheadShorthead SculpinSculpin –– food source for bull trout, food source for bull trout, distributed around shorelinedistributed around shoreline
![Page 4: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/4.jpg)
Project ObjectivesProject Objectives
Determine year round horizontal and vertical Determine year round horizontal and vertical distribution of distribution of adfluvialadfluvial bull troutbull trout
Determine timing and other characteristics of individualDetermine timing and other characteristics of individualAge of fishAge of fishTiming of spawning Timing of spawning –– difference between males/femalesdifference between males/femalesGrowthGrowth
Investigate differences between horizontal and vertical Investigate differences between horizontal and vertical distribution of distribution of adfluvialadfluvial bull trout and rainbow troutbull trout and rainbow trout
![Page 5: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/5.jpg)
Chester Morse Lake Chester Morse Lake -- Reservoir Reservoir Operational EffectsOperational Effects
Water levels vary 14Water levels vary 14--20 feet annually 20 feet annually Temperature profile changes Temperature profile changes Fish species behavior and ecologyFish species behavior and ecologyForage types Forage types –– productivity and availability of food productivity and availability of food resourcesresources
![Page 6: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/6.jpg)
Acoustic Telemetry Acoustic Telemetry
}Pygmy Whitefish
VR2 Hydrophone – collects data in internal memory, runs constantly, low maintenance
Range of tags used in study
Bull trout and rainbow trout
![Page 7: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/7.jpg)
Fish Capture and TaggingFish Capture and Tagging
![Page 8: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/8.jpg)
PIT tagged at time of acoustic tag implant
Floy Tag
![Page 9: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/9.jpg)
Scale samples taken to age fish
![Page 10: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/10.jpg)
133 individual fish with acoustic tags!!38 BLT (17 depth, 6 temp), 61 RBT, 34 PWF
0
2
4
6
8
1 0
1 22 7
53 0
03 2
53 5
03 7
54 0
04 2
54 5
04 7
55 0
05 2
55 5
05 7
56 0
06 2
5
F o r k l e n g t h ( m m )
Num
ber
of b
ull t
rout
![Page 11: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/11.jpg)
Chester Morse Lake - Water Elevation
1 5 4 0
1 5 4 5
1 5 5 0
1 5 5 5
1 5 6 0
1 5 6 5
1 1 /1 9 1 /8 2 /2 7 4 /1 8 6 /7 7 /2 7 9 /1 5 1 1 /4
Res
ervo
ir el
evat
ion
(feet
)
20062007
W in te r S p ring S um m er F a ll
![Page 12: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/12.jpg)
1.0%0.8%
2.6%
7.7%
20.6%
21.3%11.4%
21.6%
12.9%
Horizontal Distribution of Bull Trout in 2007Horizontal Distribution of Bull Trout in 2007
Low use in west end of reservoir
High use in deep part of reservoir and deltas
![Page 13: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/13.jpg)
0.5%0.1%
3.0%
6.3%
13.1%
22.3%2.0%
17.4%
35.3%
Summer Horizontal Distribution of Bull TroutSummer Horizontal Distribution of Bull Trout
1. Lowered use in west end
2. Similar proportional use of deltas.
3. Increased use of river habitat (by >20%)
![Page 14: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/14.jpg)
Rainbow Trout
Bull TroutPygmy Whitefish
High Use AreasHigh Use Areas
Note that blues indicate greatest depth in CML and orange/red color represents shallower habitat.
![Page 15: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/15.jpg)
2004 Chester Morse Reservoir Temp Profiles
0
5
10
15
20
25
30
35
400.0 5.0 10.0 15.0 20.0 25.0
Temperature (oC)
Dep
th (M
)
January-04February-04March-04April-04May-04June-04July-04August-04September-04October-04November-04December-04
Lost Buoy
Graph from Moya Joubert, SPU
Chester Morse Lake Temperature Profile
![Page 16: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/16.jpg)
Vertical Distribution of Bull Trout in Main Lake Basin
Mean Depth
Fall = 16.3 m
Spring = 16.7 m
Summer = 18.5 m
Winter = 15.1 m fallspring
summerwinter
0
8
16
24
32
40
Dep
th ( m
)
![Page 17: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/17.jpg)
Mean Depth
Fall = 2.0m
Spring = 4.3m
Summer = 4.7m
Winter = 3.0mfall
spring
summerwinter
0
2
4
6
8
10
Dep
th ( m
)
Vertical Distribution of Bull Trout in River Deltas
![Page 18: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/18.jpg)
Temperature at Bull Trout LocationsTemperature at Bull Trout Locations
fallspring
summerwinter
0
5
10
15
20
Tem
pera
tur e
(C)
Main lake basin Deltas
Mean = 9.9 C Mean = 10.6 C
fallspring
summerwinter
0
5
10
15
20
Tem
pera
tur e
(C)
![Page 19: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/19.jpg)
Fish #6 Movement of November 20, 2006Male Bull trout
-5
0
5
10
15
20
25
30
35
0:00 2:24 4:48 7:12 9:36 12:00 14:24 16:48 19:12 21:36 0:00
Dep
th (m
)
Cedar delta lip
Off McClellan and Greenpoint Creeks
Cedar delta lip
![Page 20: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/20.jpg)
Lake level held “higher”- typically winter and spring (very little thermal stratification)
Fish have more room to spread out, use shoreline habitat and river deltas
Lake level held “lower”- typically summer and fall (thermal stratification)
Fish are more concentrated, limited access to shoreline habitat and river deltas, and are observed moving into river habitat for temperature refuge
![Page 21: Movement of Adfluvial Bull Trout in Chester Morse …...Chester Morse Lake Temperature Profile Vertical Distribution of Bull Trout in Main Lake Basin Mean Depth Fall = 16.3 m Spring](https://reader036.fdocuments.in/reader036/viewer/2022063017/5fd9bb9b74a90367d86c34b5/html5/thumbnails/21.jpg)
Acknowledgements- Ed Connor, Seattle City Light- Kyle Meier, Forest and Channel Metrics- Moya Joubert, SPU- Jon Workman, SPU- Churchill Aho, SPU- Dave Beauchamp, UW- Jamie Thompson- Nathan Zorich