Cook Cr nr mouth
| 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. |
| 1. Gerridae in slackwater areas; 2. Aquatic moss attached to submerged and dry bedrock bottom; 3. Some fines deposited over surface of low gradient areas of the reach; 4. Juga sp. All over bedrock substrate at tailout of riffles. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 13.8 | 9.2 | 1.55 | 8. | 77 |
| 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 | 9.1 | 2.50 | 1.00 | 1.1 | 0.05 | 0.63 | 1.2 | 10.4 | DKICK | riffle | 2 | 4.8 | 0.50 | 1.00 | 2.9 | 0.11 | 1.00 | 2.9 | 8.2 | DKICK | riffle | 3 | 4.2 | 2.00 | 1.00 | 2.3 | 0.06 | 0.79 | 2.6 | 13.2 | DKICK | riffle | 4 | 3.4 | 0.50 | 1.00 | 0.9 | 0.03 | 0.51 | 0.9 | 4.3 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 4% | 26% | 32% | 38% | 2 | 14% | 26% | 60% | 3 | 12% | 32% | 30% | 26% | 4 | 42% | 44% | 14% |
|
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: 1.04 |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 48% | 25% | 37% |
| 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 | 8 | 31 | 5 | 19 | 6 |
| 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 | 14 | 4 | 1 | 2% | 63% | 14% |
| samp type | loc type | loc no | comment | sv richness (count) | clinger richness (count) | scrapers (%) | predators (%) | filterers (%) | clingers (%) |
|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 7 | 16 | 11% | 3% | 10% | 24% |
| 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 ------------------------------------------------------------------ 127917 Chironomidae 1860 37.3 102594 Z. cinctipes 740 14.8 100817 B. tricaudatus 550 11.0 100572 Rhithrogena sp. 330 6.6 126774 Simulium sp. 260 5.2 115453 Hydropsyche sp. 210 4.2 101226 P. temporalis 180 3.6 114177 Optioservus sp. 130 2.6 568598 D. hageni 130 2.6 68422 Oligochaeta 90 1.8 114167 Heterlimnius sp. 50 1.0 115258 Wormaldia sp. 50 1.0 82754 Acarina 50 1.0 125810 Dixa sp. 40 0.8 100635 E. grandis 30 0.6 100557 Cinygmula sp. 30 0.6 103273 Sweltsa grp. 30 0.6 102986 C. californica 30 0.6 115097 Rhyacophila sp. 20 0.4 121027 Dicranota sp. 20 0.4 P630 R. Brunnea grp. 20 0.4 59490 Nematoda 20 0.4 71570 Juga sp. 20 0.4 114093 Elmidae 20 0.4 116958 Micrasema sp. 20 0.4 102972 H. pacifica 10 0.2 103305 Plumiperla sp. 10 0.2 114205 Zaitzevia sp. 10 0.2 115155 R. Sibirica grp. - n 10 0.2 117159 Glossosoma sp. 10 0.2 115153 R. Sibirica grp. - b 10 0.2
Cook Cr nr mouth
| 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. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 15.5 | 9.7 | 1.51 | 7.8 | 76 |
| 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 | 5.8 | 1.00 | 1.00 | 0.1 | 0.65 | 0.96 | 0.1 | 8.4 | DKICK | riffle | 2 | 4.6 | 1.00 | 1.00 | 1.0 | 0.70 | 0.81 | 0.3 | 9.5 | DKICK | riffle | 3 | 6.5 | 1.00 | 1.00 | 1.0 | 0.50 | 0.66 | 1.0 | 9.6 | DKICK | riffle | 4 | 7.4 | 1.00 | 1.00 | 0.7 | 0.39 | 0.99 | 0.7 | 12.5 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 16% | 18% | 6% | 14% | 6% | 40% | 2 | 22% | 28% | 16% | 34% | 3 | 20% | 40% | 28% | 12% | 4 | 22% | 12% | 30% | 36% |
|
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: 1.05 |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 57% | 28% | 17% |
| 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 | 6 | 31 | 6 | 17 | 5 |
| 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 | 14 | 4 | 0% | 0% | 39% | 2% |
| samp type | loc type | loc no | comment | sv richness (count) | clinger richness (count) | scrapers (%) | predators (%) | filterers (%) | clingers (%) |
|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 5 | 11 | 16% | 13% | 8% | 49% |
| 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 ------------------------------------------------------------------ 100800 Baetis sp. 462 14.5 114093 Elmidae 430 13.5 100504 Heptageniidae 355 11.1 129228 Chironominae sp. 247 7.7 128457 Orthocladiinae sp. 226 7.1 115453 Hydropsyche sp. 215 6.7 102517 Nemouridae 172 5.4 115097 Rhyacophila sp. 161 5.0 82754 Acarina 161 5.0 116958 Micrasema sp. 129 4.0 114177 Optioservus sp. 97 3.0 103273 Sweltsa grp. 75 2.4 102914 Perlidae 66 2.1 127917 Chironomidae 54 1.7 93773 Gammarus sp. 44 1.4 102972 H. pacifica 34 1.1 100557 Cinygmula sp. 32 1.0 101095 Leptophlebiidae 32 1.0 102994 Perlodidae 32 1.0 117159 Glossosoma sp. 22 0.7 125810 Dixa sp. 22 0.7 121027 Dicranota sp. 22 0.7 126774 Simulium sp. 22 0.7 59490 Nematoda 11 0.3 101232 Ephemerellidae 11 0.3 102591 Zapada sp. 11 0.3 127994 Tanypodinae 11 0.3 116794 Lepidostoma sp. 11 0.3 120094 Hexatoma sp. 11 0.3 111963 Dytiscidae 11 0.3 115258 Wormaldia sp. 1 0.0
| 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