Honea et al. 2009: Temperature and Chinook Survivorship

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Sat, 12/21/2024 - 00:27

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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

Vital Rate (Process)

Survivorship

Life Stage

Spawners

Season

Spring, Spawning Season

Activity

Spawning

Detailed SR Function Description

Function applied in Honea et al., (2009) for hatchery spring-run Chinook salmon survival. Spawner stage: Survivorship of spring-run Chinook spawners and water temperature (from reviews by McCullough, 1999; and Richter & Kolmes, 2005). The function is based on Cramer’s (2001) observations of reduced survivorship of hatchery fish.

Surv = 1 if Tpre < 16C
Surv = (5.43-0.28*Tpre) if 16 ≤ Tpre < 19
Surv = 0.01 if TPre ≥ 19

Where Tpre is the mean of daily maximum temperature (C) August–September.

Scheuerell et al. (2006) developed a separate function for wild spring-run Chinook survival (see report for details).

Function Derivation

expert opinion

Function Type

continuous

Stressor Scale

linear

References Cited

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.

Cramer, S. P. (2001). The relationship of stream habitat features to potential for production of four salmonid species. SP Cramer and Associates, Gresham, Oregon.

Citation Link

Honea et al. (2009)

Cramer (2001)

File Upload

Honea Fig 3.xlsx (39.35 KB)

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