Mull & Wilzback 2007: Coho Spawning Site Selection with Substrate
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Species Common Name
Coho Salmon
Latin Name (Genus species)
Oncorhynchus kisutch
Stressor Name
Substrate and Channel Unit
Specific Stressor Metric
Percent gravel-pebble
Stressor Units
%
Vital Rate (Process)
Site Selection Probability
Geography
Northern California, Freshwater Creek
Detailed SR Function Description
Site selection probability for Coho Salmon spawning (spawning habitat suitability) based on percent gravel-pebble substrate coverage.
Model:
Spawning Site Selection Probability = [Percent gravel-pebble] * [pool-riffle vs run-riffle] habitat * [Redds nearby]
Data file from pool-riffle; PROX=1 (redds already nearby)
Model:
Spawning Site Selection Probability = [Percent gravel-pebble] * [pool-riffle vs run-riffle] habitat * [Redds nearby]
Data file from pool-riffle; PROX=1 (redds already nearby)
Function Derivation
Regression model from field data.
Transferability of Function
Direction and magnitude likely transferable
Source of stressor Data
Field data
Function Type
continuous
Stressor Scale
linear
References Cited
Mull, K. E., & Wilzbach, M. A. (2007). Selection of spawning sites by coho salmon in a northern California stream. North American Journal of Fisheries Management, 27(4), 1343-1354.
Citation Link
Images
Stressor Response csv data
temp_0.csv
(572 bytes)
| Stressor (X) | Mean System Capacity (%) | SD | low.limit | up.limit |
|---|---|---|---|---|
| 1.1 | 8.4 | 0 | 14.93 | 14.93 |
| 5.5 | 16 | 0 | 16.42 | 16.42 |
| 7.1 | 18.7 | 0 | 19.4 | 19.4 |
| 12.1 | 26.7 | 0 | 24.63 | 24.63 |
| 16.5 | 33.4 | 0 | 29.85 | 29.85 |
| 19.8 | 38.2 | 0 | 35.82 | 35.82 |
| 23.1 | 42.9 | 0 | 39.55 | 39.55 |
| 25.3 | 45.9 | 0 | 44.78 | 44.78 |
| 29.7 | 51.7 | 0 | 49.25 | 49.25 |
| 31.9 | 54.4 | 0 | 54.48 | 54.48 |
| 36.3 | 59.7 | 0 | 58.21 | 58.21 |
| 40.1 | 64.1 | 0 | 64.18 | 64.18 |
| 41.8 | 65.9 | 0 | 68.66 | 68.66 |
| 47.8 | 72.1 | 0 | 74.63 | 74.63 |
| 53.3 | 77.2 | 0 | 79.1 | 79.1 |
| 65.9 | 87 | 0 | 88.81 | 88.81 |
| 69.2 | 89.1 | 0 | 90.3 | 90.3 |
| 80.8 | 95.2 | 0 | 95.52 | 95.52 |
| 85.7 | 97.1 | 0 | 96.27 | 96.27 |
| 91.8 | 98.9 | 0 | 97.76 | 97.76 |
| 100 | 100.3 | 0 | 98.51 | 98.51 |
Stressor Response Chart
Mean Response
±1 Standard Deviation
Upper/Lower Limits