Scheuerell et al 2006: Temperature and Chinook Prespawn
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Species Common Name
Chinook Salmon
Latin Name (Genus species)
Oncorhynchus tshawytscha
Stressor Name
Temperature
Specific Stressor Metric
Mean of Daily Maximum Temperatures (Aug-Sept)
Stressor Units
C
Vital Rate (Process)
Survivorship
Geography
Oregon
Detailed SR Function Description
Function applied in Honea et al., (2009) and Scheuerell et al. (2006) for life cycle model for wild spring-run Chinook salmon. Spawner stage: Survivorship of spring-run Chinook spawners and water temperature (from reviews by McCullough, 1999; and Richter & Kolmes, 2005). Water temperature-dependent survivorship function developed by Scheuerell et al. (2006) from observations by Cramer (2001) of wild spring-run Chinook.
Surv = 1 if Tpre < 16C
Surv = (1-0.15(Tpre-16)) if Tpre >= 16C & Tpre <22.6
Surv = 0.01 if Tpre > 22.6
Where Tpre is the mean of daily maximum temperature (C) August–September. Honea et al., (2009) developed a separate function for hatchery spring-run Chinook survival (see report for details).
General Application Prespawn
Surv = 1 if Tpre < 16C
Surv = (1-0.15(Tpre-16)) if Tpre >= 16C & Tpre <22.6
Surv = 0.01 if Tpre > 22.6
Where Tpre is the mean of daily maximum temperature (C) August–September. Honea et al., (2009) developed a separate function for hatchery spring-run Chinook survival (see report for details).
General Application Prespawn
Function Type
continuous
Stressor Scale
linear
Citation(s)
Scheuerell M.D., Hilborn R., Ruckelshaus M.H., Bartz K.K., Lagueux K.M., Haas A.D. & Rawson K. (2006) The Shiraz model: a tool for incorporating anthropogenic effects and fish-habitat relationships in conservation planning. Canadian Journal of Fisheries and Aquatic Science, 63, 1596–1607.
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.
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.
Stressor Response csv data
temp.csv
(240 bytes)
| Raw Stressor Values | Scaled Response Values 0 to 100 | SD | low.limit | up.limit |
|---|---|---|---|---|
| 8 | 100 | 0 | 0 | 100 |
| 16 | 100 | 0 | 0 | 100 |
| 17 | 85 | 0 | 0 | 100 |
| 18 | 70 | 0 | 0 | 100 |
| 19 | 55 | 0 | 0 | 100 |
| 20 | 40 | 0 | 0 | 100 |
| 21 | 25 | 0 | 0 | 100 |
| 22 | 10 | 0 | 0 | 100 |
| 22.6 | 1 | 0 | 0 | 100 |
| 24 | 1 | 0 | 0 | 100 |
| 28 | 1 | 0 | 0 | 100 |
Stressor Response Chart