McHugh, Budy & Schaller (2004): Temperature and Chinook Fry Survivorship
stobias
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Species Common Name
Chinook Salmon (stream type chinook)
Latin Name (Genus species)
Oncorhynchus tshawytscha
Stressor Name
Temperature
Specific Stressor Metric
mean daily temperature
Stressor Units
C
Vital Rate (Process)
Survivorship
Life Stage
Detailed SR Function Description
Fry stage: Survivorship through the fry stage to the overwintering stage is influenced by summer water temperatures (see reviews by McCullough, 1999; Richter & Kolmes, 2005). This survivorship function is developed for stream-type chinook by McHugh, Budy & Schaller (2004) based on data from Brett (1952), McCormick, Hokanson & Jones (1972), and Coutant (1973):
Surv = exp{-((Tsum)/(27.0271))^10.74} if Tsum > 17.8
Surv = 1 if Tsum ≤ 17.8
Where Tsum is mean daily temperature (oC) August–September.
Surv = exp{-((Tsum)/(27.0271))^10.74} if Tsum > 17.8
Surv = 1 if Tsum ≤ 17.8
Where Tsum is mean daily temperature (oC) August–September.
Function Type
continuous
Stressor Scale
linear
Citation(s)
McHugh, P., Budy, P., & Schaller, H. (2004). A model-based assessment of the potential response of Snake River spring–summer Chinook salmon to habitat improvements. Transactions of the American Fisheries Society, 133(3), 622-638.
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.
Citation Link
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Excel file showing application of formula
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Stressor Response csv data
Honea fig 5.csv
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| Stressor (X) | Mean System Capacity (%) | SD | low.limit | up.limit |
|---|---|---|---|---|
| 16.8 | 100 | 0 | 0 | 100 |
| 17.8 | 100 | 0 | 0 | 100 |
| 18.8 | 97.99306031 | 0 | 0 | 100 |
| 19.8 | 96.52463997 | 0 | 0 | 100 |
| 20.8 | 94.17225078 | 0 | 0 | 100 |
| 21.8 | 90.53576285 | 0 | 0 | 100 |
| 22.8 | 85.13336276 | 0 | 0 | 100 |
| 23.8 | 77.47479759 | 0 | 0 | 100 |
| 24.8 | 67.22759619 | 0 | 0 | 100 |
Stressor Response Chart