Douglas Cr at Alstown
| Note: A key is available for this visit report. For background on ambient monitoring protocol and ambient taxa metrics, see, respectively, Benthic Macroinvertebrate Biological Monitoring Protocols for Rivers and Streams: 2001 Revision and Multi-Metric Index Development for Biological Monitoring in Washington State Streams. |
| fine sediment layer where bedrock substrate is present; broad floodplain during spring floods; suspect some farmhouses use the stream to carry septic material. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 19.3 | 9.1 | 0.22 | 9.3 | 490 |
| samp type | loc type | loc no | wetted width (m) | stream gradient (%) | sample area (m^2) | RPD (m) | middepth velocity (FS) | max depth (m) | Dp (m) | canopy (%) | bottom velocity (FS) | bankfull width (m) | avg depth (m) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 1 | 3.5 | 0.80 | 0.75 | 18.00 | 0.3 | 0.15 | 22.00 | 0.03 | 17.9 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 100% |
| RIVPACS (River InVertebrate Prediction and Classification System) is not yet available for sites in Washington east of the Cascades. |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 24% | 5% (1) | 0% |
Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;
| samp type | loc type | loc no | comment | Trichop richness (count) | total richness (count) | Plecop richness (count) | EPT richness (count) | Ephem richness (count) |
|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 4 (3) | 20 (1) | 2 (1) | 7 | 1 (1) |
Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;
| samp type | loc type | loc no | comment | temp pref avg (score) | TV3 richness (count) | HBI (score) | BiTol richness (count) | tv7 (%) | top3 (%) | BiTol (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 2 | 6 (1) | 0% | 33% | 64% (5) | 27% |
Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;
| samp type | loc type | loc no | comment | sv richness (count) | clinger richness (count) | scrapers (%) | predators (%) | filterers (%) | clingers (%) |
|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 3 (1) | 5 | 16% | 22% | 22% (5) | 40% |
Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;
| habitat type | location no. | sampler type | sample area (m^2) |
|---|---|---|---|
| riffle | (composite sample) | DKICK | 0.75 |
taxon id taxon name density (m^2) % of total ------------------------------------------------------------------ 94026 Hyalella azteca 2040 28.6 127113 Atrichopogon sp. 1365 19.2 114180 O. quadrimaculatus 1125 15.8 115454 H. betteni 975 13.7 126774 Simulium sp. 420 5.9 100817 B. tricaudatus 360 5.1 115408 Cheumatopsyche sp. 180 2.5 114169 H. corpulentus 135 1.9 121027 Dicranota sp. 120 1.7 116794 Lepidostoma sp. 120 1.7 68440 Lumbriculidae 120 1.7 115854 Zumatrichia sp. 30 0.4 99395 Folsomia sp. 15 0.2 131527 Tabanus sp. 15 0.2 150730 Limnophora sp. 15 0.2 115002 Sialis sp. 15 0.2 113106 Helophorus sp. 15 0.2 112118 Dytiscus sp. 15 0.2 102962 Paragnetina sp. 15 0.2 102567 Malenka sp. 15 0.2 102139 Argia sp. 15 0.2
| habitat type | location no. | sampler type | sample area (m^2) |
|---|---|---|---|
| pool | (composite sample) | DKICK | 0.75 |
taxon id taxon name density (m^2) % of total ------------------------------------------------------------------ 94026 Hyalella azteca 1350 31.8 127113 Atrichopogon sp. 1200 28.3 102100 Zoniagrion sp. 530 12.5 86110 Harpacticoida 470 11.1 103423 Trichocorixa sp. 170 4.0 100903 Callibaetis sp. 140 3.3 70345 Valvatidae 130 3.1 100817 B. tricaudatus 120 2.8 112314 Oreodytes sp. 30 0.7 115635 Agraylea sp. 20 0.5 68440 Lumbriculidae 20 0.5 102061 Lestes sp. 10 0.2 111923 Peltodytes sp. 10 0.2 115854 Zumatrichia sp. 10 0.2 116794 Lepidostoma sp. 10 0.2 146893 Ephydridae 10 0.2 112938 Tropisternus sp. 10 0.2
| Download file containing all Ecology ambient stream biological monitoring data Microsoft Access version 2000 format in ZIP archive, ~2 megabyte download |
Questions or comments on content may be sent to George Onwumere
Questions or comments on presentation may be sent to Steve Barrett.
Washington State Department of Ecology