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Honea et al. 2009: Fine sediments and Egg-to-Fry Survivorship

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Species Common Name
Chinook Salmon
Latin Name (Genus species)
(Oncorhynchus tshawytscha
Stressor Name
Fines
Specific Stressor Metric
Fine Coverage of the Substrate <1.7mm
Stressor Units
Fine Coverage (%)
Vital Rate (Process)
Survivorship

Life Stage

Season
Incubation
Activity
Incubation
Geography
Idaho and Washington
Detailed SR Function Description
Experimental gravel mixture and Chinook Salmon embryo survival. Mesocosm study and literature review. 90% survival achieved when gravel mixture mean size >10mm and decreasing survival with small fine coverage (not reviewed). Fines. Sedimentation.

Egg-to-fry survivorship function:
Surv = 0.93 if f < 11.6
Surv = (-5.21*f)+1.54 if 11.6 ≤ f < 28.3
Surv = 0.06 if f ≥ 28.3

Where f is % fines < 1.7 mm.
Source of stressor Data
Mesocosm study and literature review.
Function Type
continuous
Stressor Scale
linear
Citation(s)
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.

Tappel P.D. & Bjornn T.C. (1983) A new method of relating size of spawning gravel to salmonid embryo survival. North American Journal of Fisheries Management, 2, 123–135.
Citation Link
2009 Honea et al
Tappel and Bjornn 1983
Images
Excerpt from text
Tapple and Bjornn 1983
Stressor Response csv data
fines.csv (297 bytes)
Raw Stressor Values Scaled Response Values 0 to 100 SD low.limit up.limit
0 93 0 0 100
11.6 93 0 0 100
12 91.48 0 0 100
14 81.06 0 0 100
16 70.64 0 0 100
18 60.22 0 0 100
20 49.8 0 0 100
22 39.38 0 0 100
24 28.96 0 0 100
26 18.54 0 0 100
28 8.12 0 0 100
28.3 6 0 0 100
100 6 0 0 100

Stressor Response Chart