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Ambient stream biological monitoring site

Monroe Creek

Photo of stream from sample site

Site details

project Ambient ecoregion Coast Range
latitude 46.93306 county Thurston
latitude -123.1356 land use reference site
elevation (ft) 492 reference site True
stream order 2 map link

Years when sampling has occurred:

2008 2007 2006 2005 2004 2003 2002 2001 2000 1999 1998

Site comment:

This stream belongs to a class of streams that experience extreme high flows during the runoff season and have very broad bankful widths during this time. The water energy and recruitment of material from outside the stream present a major disturbance on an annual basis to the benthic macroinvertebrate community.
For explanation on this site summary and any visit report below, see site summary and visit report keys.

Site visit reports:

Monroe Creek

Habitat measurements and taxa metrics - September 8, 1999

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.

Visit comment

1. Emerged Discomoecus sp.; 2. O. mykiss fingerlings in pools,; 3. one medium-sized crayfish (P. leniusculus); 4. Juga sp. Present along stream margin; 5. Surrounding landscape was logged since the previous visit in 1998. RIVPACS score for 1999 was significantly lower following this event. A thin riparian buffer remained along the stream corridor.

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)		dis o winkler
(mg/L)		stream flow
(CFS)		pH
(pH)		conductivity
(umhos/cm)
10.610.12.538.64

Habitat: dimensions, gradient, velocity, and canopy

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)
DKICKriffle15.32.001.00 1.50.04 0.881.410.4 
DKICKriffle25.31.001.00 0.70.07 0.760.78.2 
DKICKriffle33.01.501.00 0.60.09 0.880.48.3 
DKICKriffle43.93.001.00 3.30.07 0.843.28.7 

Habitat: substrate

loc
no		otherwoodsilt
clay		sandfine
gravel		coarse
gravel		cobbleboulderbedrock
rough		bedrock
smooth
1    24%44%32%   
2   2%2%34%62%   
3    2%32%66%   
4    4%36%60%   

Taxa: RIVPACS score

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: 0.69

Taxa: composition

samp
type		loc
type		loc
no		commentEPT
(%)		ephem
(%)		chiron
(%)
DKICKriffle0field composited38%20%12%

Taxa: richness

samp
type		loc
type		loc
no		commentTrichop
richness
(count)		total
richness
(count)		Plecop
richness
(count)		EPT
richness
(count)		Ephem
richness
(count)
DKICKriffle0field composited4253169

Taxa: tolerance

samp
type		loc
type		loc
no		commenttemp
pref
avg
(score)		TV3
richness
(count)		HBI
(score)		BiTol
richness
(count)		tv7
(%)		top3
(%)		BiTol
(%)
DKICKriffle0field composited 11520%72%12%

Taxa: trophic/habit

samp
type		loc
type		loc
no		commentsv
richness
(count)		clinger
richness
(count)		scrapers
(%)		predators
(%)		filterers
(%)		clingers
(%)
DKICKriffle0field composited6168%3%60%69%

Taxa: sample results (individuals-per-square-meter estimates)

sample #1112

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75 
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
126774       	Simulium sp.        	   2091      	   48.5
115453       	Hydropsyche sp.     	    506      	   11.7
127917       	Chironomidae        	    497      	   11.5
100817       	B. tricaudatus      	    480      	   11.1
102594       	Z. cinctipes        	    154      	    3.6
100666       	Ironodes sp.        	    111      	    2.6
100635       	E. grandis          	     94      	    2.2
100572       	Rhithrogena sp.     	     69      	    1.6
115153       	R. Sibirica grp. - b	     69      	    1.6
101226       	P. temporalis       	     34      	    0.8
117159       	Glossosoma sp.      	     26      	    0.6
100557       	Cinygmula sp.       	     26      	    0.6
102972       	H. pacifica         	     26      	    0.6
115097       	Rhyacophila sp.     	     17      	    0.4
101368       	D. doddsi           	     17      	    0.4
114177       	Optioservus sp.     	     17      	    0.4
114164       	Cleptelmis sp.      	      9      	    0.2
100637       	E. longimanus       	      9      	    0.2
101233       	Ephemerella sp.     	      9      	    0.2
114142       	Narpus sp.          	      9      	    0.2
68422        	Oligochaeta         	      9      	    0.2
114167       	Heterlimnius sp.    	      9      	    0.2
119660       	Antocha monticola   	      9      	    0.2
59490        	Nematoda            	      9      	    0.2
102986       	C. californica      	      9      	    0.2

Monroe Creek

Habitat measurements and taxa metrics - August 18, 1998

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.

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)		dis o winkler
(mg/L)		stream flow
(CFS)		pH
(pH)		conductivity
(umhos/cm)
13.510.2.7.973

Habitat: dimensions, gradient, velocity, and canopy

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)
DKICKriffle15.23.001.00 0.60.09 1.000.59.6 
DKICKriffle23.83.001.00 0.30.15 0.460.310.1 
DKICKriffle34.40.501.00 2.60.06 1.002.49.1 
DKICKriffle43.61.501.00 1.00.12 1.000.910.2 

Habitat: substrate

loc
no		otherwoodsilt
clay		sandfine
gravel		coarse
gravel		cobbleboulderbedrock
rough		bedrock
smooth
1    8%28%64%   
2   2%8%20%70%   
3    6%28%66%   
4    2%28%70%   

Taxa: RIVPACS score

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: 1.20

Taxa: composition

samp
type		loc
type		loc
no		commentEPT
(%)		ephem
(%)		chiron
(%)
DKICKriffle0field composited44%28%40%

Taxa: richness

samp
type		loc
type		loc
no		commentTrichop
richness
(count)		total
richness
(count)		Plecop
richness
(count)		EPT
richness
(count)		Ephem
richness
(count)
DKICKriffle0field composited63552110

Taxa: tolerance

samp
type		loc
type		loc
no		commenttemp
pref
avg
(score)		TV3
richness
(count)		HBI
(score)		BiTol
richness
(count)		tv7
(%)		top3
(%)		BiTol
(%)
DKICKriffle0field composited 15422%53%1%

Taxa: trophic/habit

samp
type		loc
type		loc
no		commentsv
richness
(count)		clinger
richness
(count)		scrapers
(%)		predators
(%)		filterers
(%)		clingers
(%)
DKICKriffle0field composited71510%10%3%29%

Taxa: sample results (individuals-per-square-meter estimates)

sample #1110

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75 
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
129228       	Chironominae sp.    	   1140      	   33.2
100800       	Baetis sp.          	    430      	   12.5
128457       	Orthocladiinae sp.  	    237      	    6.9
101368       	D. doddsi           	    215      	    6.3
82754        	Acarina             	    215      	    6.3
115097       	Rhyacophila sp.     	    140      	    4.1
100504       	Heptageniidae       	    129      	    3.8
119660       	Antocha monticola   	    118      	    3.4
102985       	Calineuria sp.      	     91      	    2.6
100572       	Rhithrogena sp.     	     65      	    1.9
102591       	Zapada sp.          	     65      	    1.9
115095       	Trichoptera         	     54      	    1.6
117120       	Glossosomatidae     	     43      	    1.3
115453       	Hydropsyche sp.     	     43      	    1.3
100557       	Cinygmula sp.       	     43      	    1.3
103273       	Sweltsa grp.        	     43      	    1.3
114167       	Heterlimnius sp.    	     32      	    0.9
101187       	Paraleptophlebia sp.	     32      	    0.9
69459        	Gastropoda          	     32      	    0.9
114093       	Elmidae             	     32      	    0.9
126774       	Simulium sp.        	     32      	    0.9
130915       	Glutops sp.         	     22      	    0.6
114205       	Zaitzevia sp.       	     22      	    0.6
115258       	Wormaldia sp.       	     22      	    0.6
102972       	H. pacifica         	     22      	    0.6
117159       	Glossosoma sp.      	     22      	    0.6
101338       	Attenella sp.       	     11      	    0.3
100626       	Epeorus sp.         	     11      	    0.3
127778       	Bezzia sp.          	     11      	    0.3
101095       	Leptophlebiidae     	     11      	    0.3
114177       	Optioservus sp.     	     11      	    0.3
101232       	Ephemerellidae      	     11      	    0.3
102517       	Nemouridae          	     11      	    0.3
103829       	Gerris sp.          	     11      	    0.3
120094       	Hexatoma sp.        	      4      	    0.1
97326        	P. leniusculus      	      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.

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