Butter Creek at FR5290
| 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. |
| diked channel (12'-15' high); before dikes, stream condition was probably braided with a wide floodplain. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 12.5 | 10.8 | 18.45 | 8.5 | 69 |
| 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 | 12.5 | 2.00 | 0.75 | 22.00 | 1.2 | 0.31 | 38.00 | 40.7 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2% | 56% | 32% | 10% |
|
RIVPACS (River InVertebrate Prediction and Classification System) is a model that predicts probabilities of aquatic invertebrates occurring in streams in Western Washington. The number of observed taxa (O) at a test site is divided by the expected taxa (E), yielding a ratio. A ratio of 1 indicates that all expected taxa are present. As a site becomes more degraded, fewer expected taxa are observed, yielding a smaller ratio. We are 90% confident that a ratio smaller than 0.86 is degraded relative to a reference condition. RIVPACS score for this visit: 0.74 |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 39% | 15% | 0% |
| 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 | 9 | 31 | 6 | 22 | 7 |
| 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 | 18 | 4 | 4 | 3% | 55% | 2% |
| samp type | loc type | loc no | comment | sv richness (count) | clinger richness (count) | scrapers (%) | predators (%) | filterers (%) | clingers (%) |
|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 5 | 14 | 5% | 27% | 37% |
| 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 ------------------------------------------------------------------ 126795 S. canadense 247 41.0 127113 Atrichopogon sp. 113 18.7 126892 S. venustum 58 9.6 100823 B. bicaudatus 42 7.0 115530 A. grandis 21 3.5 100817 B. tricaudatus 19 3.2 102594 Z. cinctipes 14 2.3 103273 Sweltsa grp. 14 2.3 103105 S. curvata 12 2.0 101399 S. tibialis 8 1.3 126774 Simulium sp. 8 1.3 101368 D. doddsi 5 0.8 102986 C. californica 3 0.5 115454 H. betteni 3 0.5 115981 P. subborealis 3 0.5 135849 Clinocera sp. 3 0.5 117159 Glossosoma sp. 3 0.5 119660 Antocha monticola 3 0.5 102972 H. pacifica 2 0.3 81400 Pisidium sp. 2 0.3 101226 P. temporalis 2 0.3 101389 D. coloradensis 2 0.3 102473 P. californica 2 0.3 P610 R. Angelita grp. 2 0.3 120094 Hexatoma sp. 2 0.3 100557 Cinygmula sp. 2 0.3 116794 Lepidostoma sp. 2 0.3 116025 Ecclisomyia sp. 1 0.2 115098 R. acropedes 1 0.2 116918 B. occidentalis 1 0.2 68440 Lumbriculidae 1 0.2 82754 Acarina 1 0.2 121278 Philorus sp. 1 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 ------------------------------------------------------------------ 127113 Atrichopogon sp. 194 70.0 119660 Antocha monticola 9 3.2 82754 Acarina 9 3.2 100817 B. tricaudatus 8 2.9 116025 Ecclisomyia sp. 7 2.5 121027 Dicranota sp. 6 2.2 127778 Bezzia sp. 5 1.8 103273 Sweltsa grp. 5 1.8 100823 B. bicaudatus 4 1.4 68440 Lumbriculidae 3 1.1 135849 Clinocera sp. 3 1.1 101226 P. temporalis 3 1.1 101385 D. spinifera 3 1.1 112257 Hydrovatus sp. 2 0.7 116388 Neothremma sp. 2 0.7 115120 R. vaccua 2 0.7 101368 D. doddsi 1 0.4 102842 D. augusta 1 0.4 101399 S. tibialis 1 0.4 101318 Timpanoga hecuba 1 0.4 103105 S. curvata 1 0.4 114144 N. concolor 1 0.4 115981 P. subborealis 1 0.4 P610 R. Angelita grp. 1 0.4 119037 Tipula sp. 1 0.4 125810 Dixa sp. 1 0.4 126795 S. canadense 1 0.4 115641 Hydroptila sp. 1 0.4
| 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