Cramer 2001: Pool Habitat and Chinook Survivorship
stobias
View all records in the stressor response library
Species Common Name
Chinook Salmon
Latin Name (Genus species)
Oncorhynchus tshawytscha
Stressor Name
Pool Habitat
Specific Stressor Metric
Pool area covered by cobbles and boulders
Stressor Units
%
Vital Rate (Process)
Survivorship
Life Stage
Season
Winter
Detailed SR Function Description
Structures in pools have a strong influence on survivorship through the overwintering stage (Hillman, Chapman & Griffith, 1989a,b). This function was developed by Cramer (2001) based on work by Raleigh, Miller & Nelson (1986) to model the influence of structure:
Surv = (20+80*(%structure/15)/100 if %structure is < 15
Surv = 1 if %structure is ≥15
Where %structure is the percent of pool area covered by cobbles and boulders.
Surv = (20+80*(%structure/15)/100 if %structure is < 15
Surv = 1 if %structure is ≥15
Where %structure is the percent of pool area covered by cobbles and boulders.
Function Type
continuous
Stressor Scale
linear
Citation(s)
Cramer, S. P. (2001). The relationship of stream habitat features to potential for production of four salmonid species. SP Cramer and Associates, Gresham, Oregon.
Honea, J. M., Jorgensen, J. C., McCLURE, M. M., Cooney, T. D., Engie, K., Holzer, D. M., & Hilborn, R. (2009). Evaluating habitat effects on population status: influence of habitat restoration on spring‐run Chinook salmon. Freshwater Biology, 54(7), 1576-1592.
Raleigh, R. F., Miller, W. J., & Nelson, P. C. (1986). Habitat suitability index models and instream flow suitability curves: chinook salmon (Vol. 82). National Ecology Center, Division of Wildlife and Contaminant Research, Fish and Wildlife Service, US Department of the Interior.
Honea, J. M., Jorgensen, J. C., McCLURE, M. M., Cooney, T. D., Engie, K., Holzer, D. M., & Hilborn, R. (2009). Evaluating habitat effects on population status: influence of habitat restoration on spring‐run Chinook salmon. Freshwater Biology, 54(7), 1576-1592.
Raleigh, R. F., Miller, W. J., & Nelson, P. C. (1986). Habitat suitability index models and instream flow suitability curves: chinook salmon (Vol. 82). National Ecology Center, Division of Wildlife and Contaminant Research, Fish and Wildlife Service, US Department of the Interior.
Citation Link
File Upload
Images
Stressor Response csv data
Honea Fig 7.csv
(162 bytes)
| Stressor (X) | Mean System Capacity (%) | SD | low.limit | up.limit |
|---|---|---|---|---|
| 0 | 20 | 0 | 0 | 100 |
| 3 | 36 | 0 | 0 | 100 |
| 6 | 52 | 0 | 0 | 100 |
| 9 | 68 | 0 | 0 | 100 |
| 12 | 84 | 0 | 0 | 100 |
| 15 | 100 | 0 | 0 | 100 |
| 18 | 100 | 0 | 0 | 100 |
Stressor Response Chart