Chuckanut Cr @ Aroyo Park
| 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. |
| Sculpins present in channel; Very low flow this year. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 10.3 | 0.07 | 8. | 275 |
| 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 | 4.4 | 4.00 | 1.3 | 0.05 | 0.06 | 1.3 | 9.2 | 0.05 | DKICK | riffle | 2 | 2.6 | 3.00 | 0.3 | 0.07 | 0.10 | 0.3 | 12.4 | 0.07 | DKICK | riffle | 3 | 1.1 | 3.50 | 0.5 | 0.10 | 0.19 | 0.5 | 5.7 | 0.08 | DKICK | riffle | 4 | 4.2 | 7.00 | 0.9 | 0.06 | 0.12 | 0.7 | 7.3 | 0.05 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 6% | 16% | 44% | 34% | 2 | 4% | 18% | 18% | 60% | 3 | 8% | 26% | 40% | 22% | 4% | 4 | 4% | 38% | 30% | 36% | 8% | 4% |
| loc no | <2mm | 2-4mm | 4-6mm | 6-8mm | 8-11mm | 11-16mm | 16-22mm | 22-32mm | 32-45mm | 45-64mm | 64-90mm | 90-128mm | 128-180mm | 180-256mm | 256-512mm | >=512mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 2 | 3 | 4 |
| RIVPACS not available. |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 67% | 36% | 2% |
| 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 (5) | 38 (5) | 7 (5) | 25 | 10 (5) |
Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;
| samp type | loc type | loc no | comment | TV3 richness (count) | temp pref avg (score) | HBI (score) | BiTol richness (count) | tv7 (%) | top3 (%) | BiTol (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 18 | 11.71 | 3 | 3 | 13% (5) | 35% (5) | 5% |
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 | 5 (3) | 15 | 24% | 9% (1) | 9% | 45% (3) |
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 | 0.76 |
taxon id taxon name density (m^2) % of total ------------------------------------------------------------------ 68510 Enchytraeidae 108 12.7 100572 Rhithrogena sp. 96 11.3 102594 Z. cinctipes 89 10.5 115453 Hydropsyche sp. 76 9.0 100557 Cinygmula sp. 55 6.5 101187 Paraleptophlebia sp. 47 5.5 114167 Heterlimnius sp. 41 4.8 100666 Ironodes sp. 36 4.2 114093 Elmidae 32 3.8 101233 Ephemerella sp. 26 3.1 100817 B. tricaudatus 26 3.1 53964 Turbellaria 25 2.9 82754 Acarina 24 2.8 103202 Chloroperlidae 20 2.4 115097 Rhyacophila sp. 14 1.6 117159 Glossosoma sp. 13 1.5 95081 Crangonyx 13 1.5 103273 Sweltsa grp. 12 1.4 116794 Lepidostoma sp. 12 1.4 102643 Capniidae 9 1.1 115153 R. Sibirica grp. - b 8 0.9 100626 Epeorus sp. 7 0.8 100996 Ameletus sp. 7 0.8 114142 Narpus sp. 7 0.8 128978 Parametriocnemus 5 0.6 136305 Chelifera sp. 5 0.6 117044 Polycentropus sp. 4 0.5 129657 Polypedilum 4 0.5 102986 C. californica 3 0.4 81388 Pisiidae 3 0.4 101368 D. doddsi 3 0.4 102972 H. pacifica 3 0.4 129890 Micropsectra 3 0.4 129197 Tvetenia 3 0.4 126629 Thaumalea sp. 1 0.1 129746 Stenochironomus 1 0.1 568598 D. hageni 1 0.1 129086 Rheocricotopus 1 0.1 128477 Brillia 1 0.1 P622 R. Betteni grp. 1 0.1 P630 R. Brunnea grp. 1 0.1 Z690 Thienemannimyia Gr. 1 0.1 Y820 Eukiefferiella Pseud 1 0.1 102840 Leuctridae 1 0.1
Chuckanut Cr @ Aroyo Park
| 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. |
| Just downstream from the Aroyo Cr. turnout |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 14.8 | 9.7 | 0.86 | 7.9 | 150 |
| 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 | 5.4 | 3.00 | 1.4 | 0.06 | 0.84 | 1.4 | 8.1 | DKICK | riffle | 2 | 3.4 | 4.00 | 0.5 | 0.05 | 0.72 | 0.3 | 8.6 | DKICK | riffle | 3 | 5.6 | 6.00 | 0.9 | 0.12 | 0.63 | 0.5 | 7.3 | DKICK | riffle | 4 | 6.8 | 4.50 | 0.9 | 0.08 | 0.90 | 0.9 | 9.5 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 16% | 42% | 36% | 6% | 2 | 10% | 24% | 54% | 12% | 3 | 6% | 6% | 48% | 26% | 14% | 4 | 20% | 52% | 26% | 2% |
| loc no | <2mm | 2-4mm | 4-6mm | 6-8mm | 8-11mm | 11-16mm | 16-22mm | 22-32mm | 32-45mm | 45-64mm | 64-90mm | 90-128mm | 128-180mm | 180-256mm | 256-512mm | >=512mm |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 6% | 4% | 2% | 2% | 4% | 18% | 22% | 20% | 10% | 10% | 2% | 2 | 6% | 2% | 2% | 2% | 4% | 6% | 18% | 6% | 12% | 12% | 2% | 6% | 2% | 10% | 3 | 2% | 2% | 2% | 8% | 18% | 12% | 16% | 12% | 8% | 8% | 12% | 4 | 8% | 2% | 4% | 8% | 4% | 16% | 16% | 10% | 8% | 4% | 8% | 6% | 6% |
| RIVPACS not available. |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 29% | 22% | 48% |
| 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 (3) | 38 (5) | 7 (5) | 20 | 7 (5) |
Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;
| samp type | loc type | loc no | comment | TV3 richness (count) | temp pref avg (score) | HBI (score) | BiTol richness (count) | tv7 (%) | top3 (%) | BiTol (%) |
|---|---|---|---|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 15 | 12.24 | 5 | 3 | 8% (5) | 60% (5) | 5% |
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 | 5 (3) | 15 | 15% | 5% (1) | 1% | 26% (3) |
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 | 0.76 |
taxon id taxon name density (m^2) % of total ------------------------------------------------------------------ 129657 Polypedilum 254 35.3 129890 Micropsectra 78 10.8 100557 Cinygmula sp. 61 8.5 68510 Enchytraeidae 53 7.4 114167 Heterlimnius sp. 34 4.7 100817 B. tricaudatus 32 4.5 100637 E. longimanus 30 4.2 114093 Elmidae 25 3.5 101368 D. doddsi 24 3.3 82754 Acarina 16 2.2 117159 Glossosoma sp. 11 1.5 115153 R. Sibirica grp. - b 8 1.1 119656 Antocha sp. 8 1.1 128978 Parametriocnemus 8 1.1 103273 Sweltsa grp. 8 1.1 136305 Chelifera sp. 8 1.1 102591 Zapada sp. 7 1.0 101399 S. tibialis 5 0.7 59490 Nematoda 5 0.7 102596 Z. columbiana 5 0.7 100504 Heptageniidae 4 0.6 102972 H. pacifica 4 0.6 68440 Lumbriculidae 4 0.6 P622 R. Betteni grp. 3 0.4 126774 Simulium sp. 3 0.4 129197 Tvetenia 3 0.4 53964 Turbellaria 3 0.4 102567 Malenka sp. 1 0.1 117121 Agapetus sp. 1 0.1 101187 Paraleptophlebia sp. 1 0.1 102994 Perlodidae 1 0.1 103254 Suwallia sp. 1 0.1 114142 Narpus sp. 1 0.1 114205 Zaitzevia sp. 1 0.1 116054 N. rickeri 1 0.1 121027 Dicranota sp. 1 0.1 128173 Labrundinia 1 0.1 128477 Brillia 1 0.1 129086 Rheocricotopus 1 0.1 130915 Glutops sp. 1 0.1 568515 Cricotopus Isocladiu 1 0.1 115453 Hydropsyche sp. 1 0.1
Chuckanut Cr @ Aroyo Park
| 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. Sculpin present near riffle 1; 2. Heavy moss growth on tops of boulders, and woody debris in the stream channel. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 11.4 | 10.1 | 0.55 | 7.9 | 193 |
| 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 | 2.4 | 1.00 | 1.00 | 1.0 | 0.10 | 0.97 | 1.0 | 7.7 | DKICK | riffle | 2 | 2.4 | 3.00 | 1.00 | 1.7 | 0.15 | 1.00 | 1.7 | 7.7 | DKICK | riffle | 3 | 2.2 | 1.50 | 1.00 | 1.7 | 0.08 | 0.87 | 1.7 | 12.7 | DKICK | riffle | 4 | 1.9 | 2.00 | 1.00 | 1.8 | 0.09 | 0.87 | 1.8 | 17.0 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 6% | 10% | 14% | 30% | 40% | 2 | 12% | 12% | 24% | 28% | 24% | 3 | 10% | 30% | 50% | 10% | 4 | 14% | 16% | 30% | 40% |
|
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: 1.02 |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 58% | 33% | 8% |
| 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 | 5 (3) | 23 (3) | 4 (3) | 14 | 5 (3) |
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 | 11 (3) | 4 (5) | 0% | 3% | 53% | 5% (5) |
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 | 5 (5) | 12 (5) | 25% | 3% | 34% | 63% (5) |
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 ------------------------------------------------------------------ 126774 Simulium sp. 96 23.1 100572 Rhithrogena sp. 78 18.8 115453 Hydropsyche sp. 44 10.6 100817 B. tricaudatus 39 9.4 102594 Z. cinctipes 39 9.4 127917 Chironomidae 35 8.4 114167 Heterlimnius sp. 19 4.6 100666 Ironodes sp. 15 3.6 68422 Oligochaeta 12 2.9 117159 Glossosoma sp. 11 2.7 82754 Acarina 5 1.2 103273 Sweltsa grp. 4 1.0 P622 R. Betteni grp. 2 0.5 53964 Turbellaria 2 0.5 114142 Narpus sp. 2 0.5 119660 Antocha monticola 2 0.5 101226 P. temporalis 2 0.5 115153 R. Sibirica grp. - b 2 0.5 101233 Ephemerella sp. 2 0.5 102986 C. californica 1 0.2 125392 Maruina sp. 1 0.2 115530 A. grandis 1 0.2 102972 H. pacifica 1 0.2
Chuckanut Cr @ Aroyo Park
| 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. |
| moderately abundant Gerridae; fingerlings in pools; iron seep from hillside; Ecclisomyia sp. present; Glossosomatidae present. |
| temperature (deg C) | dis o winkler (mg/L) | stream flow (CFS) | pH (pH) | conductivity (umhos/cm) |
|---|---|---|---|---|
| 12.9 | 9.9 | 0.06 | 8.1 | 242 |
| 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 | 4.9 | 3.50 | 1.00 | 0.6 | 0.05 | 0.90 | 0.6 | 11.7 | DKICK | riffle | 2 | 4.9 | 3.50 | 1.00 | 0.8 | 0.05 | 0.68 | 0.8 | 11.7 | DKICK | riffle | 3 | 5.1 | 2.50 | 1.00 | 0.2 | 0.09 | 0.90 | 0.1 | 11.4 | DKICK | riffle | 4 | 5.4 | 2.50 | 1.00 | 1.0 | 0.06 | 0.93 | 1.0 | 10.9 |
| loc no | other | wood | silt clay | sand | fine gravel | coarse gravel | cobble | boulder | bedrock rough | bedrock smooth |
|---|---|---|---|---|---|---|---|---|---|---|
| 1 | 34% | 66% | 2 | 4% | 22% | 72% | 2% | 3 | 4% | 16% | 50% | 30% | 4 | 6% | 16% | 64% | 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: 0.94 |
| samp type | loc type | loc no | comment | EPT (%) | ephem (%) | chiron (%) |
|---|---|---|---|---|---|---|
| DKICK | riffle | 0 | field composited | 44% | 15% | 31% |
| 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) | 26 (3) | 2 (1) | 14 | 8 (5) |
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 | 9 (3) | 4 (5) | 0% | 0% | 54% | 0% (5) |
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 (3) | 11 (3) | 8% | 1% | 38% | 44% (3) |
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 ------------------------------------------------------------------ 126774 Simulium sp. 1441 18.7 115398 Hydropsychidae 1376 17.8 128457 Orthocladiinae sp. 1355 17.6 129228 Chironominae sp. 968 12.6 102591 Zapada sp. 774 10.0 100800 Baetis sp. 516 6.7 100626 Epeorus sp. 238 3.1 100666 Ironodes sp. 215 2.8 114167 Heterlimnius sp. 109 1.4 126640 Simuliidae 108 1.4 82754 Acarina 108 1.4 101232 Ephemerellidae 65 0.8 114093 Elmidae 65 0.8 100504 Heptageniidae 65 0.8 115097 Rhyacophila sp. 46 0.6 115453 Hydropsyche sp. 43 0.6 101095 Leptophlebiidae 43 0.6 127917 Chironomidae 43 0.6 125392 Maruina sp. 22 0.3 119037 Tipula sp. 22 0.3 127994 Tanypodinae 22 0.3 117159 Glossosoma sp. 22 0.3 100572 Rhithrogena sp. 22 0.3 100557 Cinygmula sp. 22 0.3 93773 Gammarus sp. 1 0.0 102972 H. pacifica 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