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Ambient stream biological monitoring site

South Branch Little R

Photo of stream from sample site

Site details

project Ambient ecoregion Coast Range
latitude 48.0527 county Clallam
latitude -123.502 land use reference site
elevation (ft) 1077 reference site True
stream order 2 map link

Years when sampling has occurred:

09 08 07 06 05 04 03 02 01 00 99 98 97 96 95 94 93 92 91 90 89 88 87 86 85 84 83 82

Site comment:

1) Selected as one of ten core reference sites to be monitored annually starting in 2002. 2) 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:

South Branch Little R

Habitat measurements and taxa metrics - October 8, 2004

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)
9.11.2 7.9140

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)
DKICKriffle16.85.00  1.90.30 0.600.214.40.18
DKICKriffle24.83.00  3.80.30 0.562.66.50.24
DKICKriffle34.72.00  2.60.27 0.840.711.20.27
DKICKriffle48.45.00  9.20.30 0.408.817.10.12

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1   2%16%42%34%6%  
2   2%8%16%74%   
3   2%6%44%48%   
4    4%42%54%   

Habitat: pebble counts

loc
no
<2mm2-4mm4-6mm6-8mm8-11mm11-16mm16-22mm22-32mm32-45mm45-64mm64-90mm90-128mm128-180mm180-256mm256-512mm>=512mm
1 35% 9%5%2%5%5% 4% 9%5%9%11% 
2 5% 4% 7%2%9%5%9%11%14%16%14%4% 
3 18% 6%1%1%1%9%10%10%12%9%12%6%3% 
4 12% 9%3%6%7%10%10%7%6%10%6%7%4% 

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: 1.03

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited72%41%10%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited12
(5)
46
(5)
10
(5)
319
(5)

Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;

Taxa: tolerance

samp
type
loc
type
loc
no
commentTV3
richness
(count)
temp
pref
avg
(score)
HBI
(score)
BiTol
richness
(count)
tv7
(%)
top3
(%)
BiTol
(%)
DKICKriffle0field composited289.0931210%
(5)
39%
(5)
2%

Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;

Taxa: trophic/habit

samp
type
loc
type
loc
no
commentsv
richness
(count)
clinger
richness
(count)
scrapers
(%)
predators
(%)
filterers
(%)
clingers
(%)
DKICKriffle0field composited4
(3)
1926%10%
(1)
3%49%
(5)

Note: numbers in parentheses shows contribution to IBI score: 1 - poor; 3 - medium; 5 - good;

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

sample #2408

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.76
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
100572       	Rhithrogena sp.     	    663      	   16.3
101368       	D. doddsi           	    568      	   13.9
116847       	Lepidostoma togatum 	    260      	    6.4
117159       	Glossosoma sp.      	    221      	    5.4
68510        	Enchytraeidae       	    213      	    5.2
128477       	Brillia             	    205      	    5.0
125351       	Psychodidae         	    197      	    4.8
103273       	Sweltsa grp.        	    126      	    3.1
100823       	B. bicaudatus       	    118      	    2.9
101187       	Paraleptophlebia sp.	    118      	    2.9
100817       	B. tricaudatus      	     79      	    1.9
100557       	Cinygmula sp.       	     79      	    1.9
116794       	Lepidostoma sp.     	     79      	    1.9
126774       	Simulium sp.        	     79      	    1.9
116025       	Ecclisomyia sp.     	     71      	    1.7
Z730         	Tvetenia Bavarica Gr	     71      	    1.7
116039       	Oligophlebodes sp.  	     63      	    1.5
82754        	Acarina             	     63      	    1.5
53964        	Turbellaria         	     55      	    1.4
Z690         	Thienemannimyia Gr. 	     47      	    1.2
P656         	R. Hyalinata grp.   	     47      	    1.2
P622         	R. Betteni grp.     	     47      	    1.2
102594       	Z. cinctipes        	     47      	    1.2
J977         	Z. Oregonensis grp. 	     47      	    1.2
129890       	Micropsectra        	     39      	    1.0
568763       	Arctopsychinae      	     39      	    1.0
115121       	R. Sibirica grp. - v	     32      	    0.8
102840       	Leuctridae          	     32      	    0.8
100635       	E. grandis          	     32      	    0.8
114167       	Heterlimnius sp.    	     32      	    0.8
102473       	P. californica      	     24      	    0.6
116958       	Micrasema sp.       	     24      	    0.6
127338       	Ceratopogoninae sp. 	     24      	    0.6
Y820         	Eukiefferiella Pseud	     24      	    0.6
101347       	Caudatella sp.      	     24      	    0.6
115155       	R. Sibirica grp. - n	     24      	    0.6
102601       	Z. frigida          	     16      	    0.4
103110       	Megarcys sp.        	     16      	    0.4
119656       	Antocha sp.         	     16      	    0.4
128874       	Orthocladius        	     16      	    0.4
102986       	C. californica      	      8      	    0.2
102914       	Perlidae            	      8      	    0.2
120094       	Hexatoma sp.        	      8      	    0.2
103236       	Kathroperla sp.     	      8      	    0.2
115097       	Rhyacophila sp.     	      8      	    0.2
136377       	Oreogeton sp.       	      8      	    0.2
116065       	N. occidentis       	      8      	    0.2
P630         	R. Brunnea grp.     	      8      	    0.2
100996       	Ameletus sp.        	      8      	    0.2
125810       	Dixa sp.            	      8      	    0.2
129657       	Polypedilum         	      8      	    0.2
121027       	Dicranota sp.       	      8      	    0.2

South Branch Little R

Habitat measurements and taxa metrics - October 1, 2003

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

Fire in National Park, sky was slightly hazy; tailed frogs in high gradient riffles; immature perlid stoneflies (early instars)

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
9.211.21.668.140

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)
DKICKriffle17.64.00  1.60.10 0.211.522.40.09
DKICKriffle23.11.00  1.60.14 0.620.813.70.15
DKICKriffle34.53.50  1.60.22 0.120.319.60.18
DKICKriffle46.14.00  1.80.12 0.101.018.40.13

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1   2%10%38%50%   
2   4%16%36%44%   
3   2%10%28%60%   
4   6%22%30%42%   

Habitat: pebble counts

loc
no
<2mm2-4mm4-6mm6-8mm8-11mm11-16mm16-22mm22-32mm32-45mm45-64mm64-90mm90-128mm128-180mm180-256mm256-512mm>=512mm
1                
2                
3                
4                

Taxa: RIVPACS score

RIVPACS not available.

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited78%58%1%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited104282810

Taxa: tolerance

samp
type
loc
type
loc
no
commentTV3
richness
(count)
temp
pref
avg
(score)
HBI
(score)
BiTol
richness
(count)
tv7
(%)
top3
(%)
BiTol
(%)
DKICKriffle0field composited2610.6021415%56%2%

Taxa: trophic/habit

samp
type
loc
type
loc
no
commentsv
richness
(count)
clinger
richness
(count)
scrapers
(%)
predators
(%)
filterers
(%)
clingers
(%)
DKICKriffle0field composited31534%6%0%64%

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

sample #2058

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.76
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
101368       	D. doddsi           	    203      	   25.0
100572       	Rhithrogena sp.     	    129      	   15.9
68510        	Enchytraeidae       	    125      	   15.4
117159       	Glossosoma sp.      	     89      	   10.9
100823       	B. bicaudatus       	     57      	    7.0
100635       	E. grandis          	     50      	    6.2
P656         	R. Hyalinata grp.   	     16      	    2.0
100817       	B. tricaudatus      	     16      	    2.0
125514       	Pericoma sp.        	     11      	    1.4
53964        	Turbellaria         	      9      	    1.1
102788       	Taeniopterygidae    	      8      	    1.0
103273       	Sweltsa grp.        	      8      	    1.0
101233       	Ephemerella sp.     	      8      	    1.0
101187       	Paraleptophlebia sp.	      8      	    1.0
102484       	P. princeps         	      7      	    0.9
102842       	D. augusta          	      7      	    0.9
129890       	Micropsectra        	      7      	    0.9
115097       	Rhyacophila sp.     	      4      	    0.5
P630         	R. Brunnea grp.     	      4      	    0.5
128477       	Brillia             	      4      	    0.5
103110       	Megarcys sp.        	      4      	    0.5
102594       	Z. cinctipes        	      3      	    0.4
82754        	Acarina             	      3      	    0.4
121027       	Dicranota sp.       	      3      	    0.4
114167       	Heterlimnius sp.    	      3      	    0.4
121278       	Philorus sp.        	      3      	    0.4
130915       	Glutops sp.         	      3      	    0.4
116958       	Micrasema sp.       	      3      	    0.4
116065       	N. occidentis       	      3      	    0.4
116794       	Lepidostoma sp.     	      2      	    0.2
101348       	C. hystrix          	      1      	    0.1
100629       	E. albertae         	      1      	    0.1
100637       	E. longimanus       	      1      	    0.1
102510       	Yoraperla sp.       	      1      	    0.1
102910       	M. infuscata        	      1      	    0.1
115560       	P. elsis            	      1      	    0.1
119656       	Antocha sp.         	      1      	    0.1
126774       	Simulium sp.        	      1      	    0.1
129197       	Tvetenia            	      1      	    0.1
136377       	Oreogeton sp.       	      1      	    0.1
59490        	Nematoda            	      1      	    0.1
P622         	R. Betteni grp.     	      1      	    0.1
115155       	R. Sibirica grp. - n	      1      	    0.1

South Branch Little R

Habitat measurements and taxa metrics - October 15, 2002

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)
8. 7.347.7131

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)
DKICKriffle17.73.00  1.40.30 0.631.89.90.09
DKICKriffle28.03.00  1.40.48 0.661.413.30.03
DKICKriffle33.44.00  2.70.18 0.352.415.80.00
DKICKriffle46.33.00  1.40.12 0.681.119.10.09

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1   4%6%30%60%   
2    16%62%22%   
3    2%6%28%64%  
4    10%30%60%   

Habitat: pebble counts

loc
no
<2mm2-4mm4-6mm6-8mm8-11mm11-16mm16-22mm22-32mm32-45mm45-64mm64-90mm90-128mm128-180mm180-256mm256-512mm>=512mm
18% 2%2%2%2%8%8%10%10%14%14%20%2%2% 
22%     4%2%16%24%30%10%4%2% 2%
32%   2% 2%2%8%4%10%10%30%10%  
414%2% 8%6%6%4%8%12%10%14%8%6%2%2% 

Taxa: RIVPACS score

RIVPACS not available.

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited79%39%8%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited11419288

Taxa: tolerance

samp
type
loc
type
loc
no
commentTV3
richness
(count)
temp
pref
avg
(score)
HBI
(score)
BiTol
richness
(count)
tv7
(%)
top3
(%)
BiTol
(%)
DKICKriffle0field composited2410.68298%50%4%

Taxa: trophic/habit

samp
type
loc
type
loc
no
commentsv
richness
(count)
clinger
richness
(count)
scrapers
(%)
predators
(%)
filterers
(%)
clingers
(%)
DKICKriffle0field composited21839%14%0%61%

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

sample #1862

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.76
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
117159       	Glossosoma sp.      	    133      	   18.6
100572       	Rhithrogena sp.     	    112      	   15.7
101368       	D. doddsi           	    111      	   15.5
68510        	Enchytraeidae       	     57      	    8.0
129197       	Tvetenia            	     32      	    4.5
100817       	B. tricaudatus      	     32      	    4.5
103273       	Sweltsa grp.        	     24      	    3.4
102788       	Taeniopterygidae    	     21      	    2.9
128477       	Brillia             	     21      	    2.9
P656         	R. Hyalinata grp.   	     14      	    2.0
100635       	E. grandis          	     13      	    1.8
116039       	Oligophlebodes sp.  	     13      	    1.8
P622         	R. Betteni grp.     	     13      	    1.8
115097       	Rhyacophila sp.     	     13      	    1.8
125514       	Pericoma sp.        	      9      	    1.3
J977         	Z. Oregonensis grp. 	      8      	    1.1
102594       	Z. cinctipes        	      8      	    1.1
101187       	Paraleptophlebia sp.	      7      	    1.0
121027       	Dicranota sp.       	      7      	    1.0
116794       	Lepidostoma sp.     	      5      	    0.7
103110       	Megarcys sp.        	      5      	    0.7
82754        	Acarina             	      5      	    0.7
53964        	Turbellaria         	      5      	    0.7
102842       	D. augusta          	      4      	    0.6
100557       	Cinygmula sp.       	      4      	    0.6
115121       	R. Sibirica grp. - v	      4      	    0.6
103236       	Kathroperla sp.     	      4      	    0.6
102994       	Perlodidae          	      4      	    0.6
115155       	R. Sibirica grp. - n	      4      	    0.6
P630         	R. Brunnea grp.     	      3      	    0.4
114167       	Heterlimnius sp.    	      3      	    0.4
119656       	Antocha sp.         	      3      	    0.4
Y810         	Eukiefferiella Grace	      3      	    0.4
100666       	Ironodes sp.        	      1      	    0.1
568763       	Arctopsychinae      	      1      	    0.1
136377       	Oreogeton sp.       	      1      	    0.1
101385       	D. spinifera        	      1      	    0.1
129890       	Micropsectra        	      1      	    0.1
128844       	Nanocladius         	      1      	    0.1
125810       	Dixa sp.            	      1      	    0.1
114093       	Elmidae             	      1      	    0.1
116958       	Micrasema sp.       	      1      	    0.1
102596       	Z. columbiana       	      1      	    0.1

South Branch Little R

Habitat measurements and taxa metrics - August 16, 2001

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

3 visit reps

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
9.811.2 6.713

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)
DKICKriffle17.73.00  1.1   1.215.1 
DKICKriffle26.97.00   0.32   7.5 
DKICKriffle37.61.00  2.10.21  1.515.3 
DKICKriffle42.91.00  2.00.09  1.35.9 

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1   2%24%36%24%12%2% 
2   6%18%14%50%2%  
3    20%30%36%14%  
4    8%36%54%   

Habitat: pebble counts

loc
no
<2mm2-4mm4-6mm6-8mm8-11mm11-16mm16-22mm22-32mm32-45mm45-64mm64-90mm90-128mm128-180mm180-256mm256-512mm>=512mm
1   16% 2% 2%10%6%12%36%2%20%4%2%
224%   2%2%10%6%6%4%2%12%   32%
32%     2%2%8%18%16%22%20%10%2% 
42%4%2%   2%10%10%10%20%12%4%4%  

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: 0.97

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited64%52%17%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited83862511

Taxa: tolerance

samp
type
loc
type
loc
no
commentTV3
richness
(count)
temp
pref
avg
(score)
HBI
(score)
BiTol
richness
(count)
tv7
(%)
top3
(%)
BiTol
(%)
DKICKriffle0field composited2011.023913%46%11%

Taxa: trophic/habit

samp
type
loc
type
loc
no
commentsv
richness
(count)
clinger
richness
(count)
scrapers
(%)
predators
(%)
filterers
(%)
clingers
(%)
DKICKriffle0field composited31423%8%1%44%

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

sample #1192

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
101368       	D. doddsi           	    124      	   19.3
129890       	Micropsectra        	     83      	   12.9
68510        	Enchytraeidae       	     81      	   12.6
100817       	B. tricaudatus      	     72      	   11.2
100572       	Rhithrogena sp.     	     38      	    5.9
100557       	Cinygmula sp.       	     26      	    4.0
100637       	E. longimanus       	     23      	    3.6
100635       	E. grandis          	     22      	    3.4
117159       	Glossosoma sp.      	     19      	    3.0
129197       	Tvetenia            	     13      	    2.0
P622         	R. Betteni grp.     	     11      	    1.7
P656         	R. Hyalinata grp.   	     11      	    1.7
100629       	E. albertae         	     11      	    1.7
54512        	Polycelis coronata  	     10      	    1.6
101389       	D. coloradensis     	      9      	    1.4
P630         	R. Brunnea grp.     	      8      	    1.2
101399       	S. tibialis         	      8      	    1.2
116046       	Neophylax sp.       	      8      	    1.2
82754        	Acarina             	      7      	    1.1
129969       	Stempellinella      	      7      	    1.1
102842       	D. augusta          	      6      	    0.9
103273       	Sweltsa grp.        	      5      	    0.8
114167       	Heterlimnius sp.    	      5      	    0.8
126774       	Simulium sp.        	      5      	    0.8
136377       	Oreogeton sp.       	      5      	    0.8
130915       	Glutops sp.         	      2      	    0.3
115560       	P. elsis            	      2      	    0.3
115114       	R. Sibirica grp. - p	      2      	    0.3
Y810         	Eukiefferiella Grace	      2      	    0.3
103110       	Megarcys sp.        	      2      	    0.3
59490        	Nematoda            	      2      	    0.3
102615       	V. cataractae       	      2      	    0.3
136305       	Chelifera sp.       	      2      	    0.3
Y800         	Eukiefferiella Devon	      1      	    0.2
568598       	D. hageni           	      1      	    0.2
101187       	Paraleptophlebia sp.	      1      	    0.2
116958       	Micrasema sp.       	      1      	    0.2
102484       	P. princeps         	      1      	    0.2
102567       	Malenka sp.         	      1      	    0.2
128477       	Brillia             	      1      	    0.2
127994       	Tanypodinae         	      1      	    0.2
Y820         	Eukiefferiella Pseud	      1      	    0.2
128978       	Parametriocnemus    	      1      	    0.2

South Branch Little R

Habitat measurements and taxa metrics - September 12, 2000

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

Park off of Little River Rd before it splits off into Black Diamond Rd. by the locked gate. Hike down abandoned road, across old bridge to the Black Diamond pump house. Go 100 yds above pump intake on stream

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
9.110.86.238.1150

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)
DKICKriffle18.72.000.75 1.40.20 0.821.118.5 
DKICKriffle28.04.000.75  0.20 0.721.421.0 
DKICKriffle331.52.000.75 1.10.30 0.250.812.0 
DKICKriffle41.93.000.75 0.90.10 0.820.820.0 

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1   26%12%34%28%   
2   10%4%10%56%20%  
3   12%20%28%32%8%  
4    33%17%    

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: 0.42

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited87%64%2%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited9344218

Taxa: tolerance

samp
type
loc
type
loc
no
commentTV3
richness
(count)
temp
pref
avg
(score)
HBI
(score)
BiTol
richness
(count)
tv7
(%)
top3
(%)
BiTol
(%)
DKICKriffle0field composited2011.25288%60%22%

Taxa: trophic/habit

samp
type
loc
type
loc
no
commentsv
richness
(count)
clinger
richness
(count)
scrapers
(%)
predators
(%)
filterers
(%)
clingers
(%)
DKICKriffle0field composited11543%4%0%62%

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

sample #697

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
100589       	R. robusta          	    430      	   21.8
100817       	B. tricaudatus      	    428      	   21.7
101368       	D. doddsi           	    324      	   16.4
117159       	Glossosoma sp.      	    315      	   16.0
68422        	Oligochaeta         	    158      	    8.0
100635       	E. grandis          	     61      	    3.1
116046       	Neophylax sp.       	     42      	    2.1
115097       	Rhyacophila sp.     	     27      	    1.4
129228       	Chironominae sp.    	     24      	    1.2
P622         	R. Betteni grp.     	     21      	    1.1
54512        	Polycelis coronata  	     12      	    0.6
114167       	Heterlimnius sp.    	     12      	    0.6
103110       	Megarcys sp.        	      9      	    0.5
103202       	Chloroperlidae      	      9      	    0.5
102615       	V. cataractae       	      9      	    0.5
101389       	D. coloradensis     	      9      	    0.5
128457       	Orthocladiinae sp.  	      9      	    0.5
100637       	E. longimanus       	      9      	    0.5
101347       	Caudatella sp.      	      6      	    0.3
P656         	R. Hyalinata grp.   	      6      	    0.3
126774       	Simulium sp.        	      6      	    0.3
128341       	Diamesinae sp.      	      6      	    0.3
59490        	Nematoda            	      6      	    0.3
102840       	Leuctridae          	      6      	    0.3
101399       	S. tibialis         	      3      	    0.2
115155       	R. Sibirica grp. - n	      3      	    0.2
115641       	Hydroptila sp.      	      3      	    0.2
116794       	Lepidostoma sp.     	      3      	    0.2
119656       	Antocha sp.         	      3      	    0.2
120732       	Hesperoconopa sp.   	      3      	    0.2
125810       	Dixa sp.            	      3      	    0.2
136377       	Oreogeton sp.       	      3      	    0.2
82754        	Acarina             	      3      	    0.2
115398       	Hydropsychidae      	      3      	    0.2

South Branch Little R

Habitat measurements and taxa metrics - September 20, 1994

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

slippery rock substrate surfaces

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
10.11.3.787.8140

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)
DKICKriffle17.14.500.75 0.40.36 0.72 10.2 

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1  2%10%34%54%    

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: 0.62

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited90%67%0%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited52821811

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 12255%47%18%

Taxa: trophic/habit

samp
type
loc
type
loc
no
commentsv
richness
(count)
clinger
richness
(count)
scrapers
(%)
predators
(%)
filterers
(%)
clingers
(%)
DKICKriffle0field composited21133%5%2%55%

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

2 samples: #696 (riffle composite), #695 (pool composite)

sample #696

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
100817       	B. tricaudatus      	    270      	   17.6
101368       	D. doddsi           	    222      	   14.5
117159       	Glossosoma sp.      	    222      	   14.5
568572       	A. insignificans    	    192      	   12.5
100589       	R. robusta          	    132      	    8.6
100635       	E. grandis          	    126      	    8.2
68422        	Oligochaeta         	     54      	    3.5
P690         	R. Nevadensis grp.  	     48      	    3.1
116958       	Micrasema sp.       	     42      	    2.7
82754        	Acarina             	     30      	    2.0
126640       	Simuliidae          	     24      	    1.6
64183        	Nematomorpha        	     18      	    1.2
100823       	B. bicaudatus       	     18      	    1.2
100557       	Cinygmula sp.       	     18      	    1.2
101240       	E. infrequens       	     12      	    0.8
103102       	Skwala sp.          	     12      	    0.8
101214       	P. memorialis       	     12      	    0.8
P772         	R. Vofixa grp.      	     12      	    0.8
100996       	Ameletus sp.        	      6      	    0.4
116025       	Ecclisomyia sp.     	      6      	    0.4
100670       	I. nitidus          	      6      	    0.4
101212       	P. heteronea        	      6      	    0.4
103273       	Sweltsa grp.        	      6      	    0.4
114180       	O. quadrimaculatus  	      6      	    0.4
125514       	Pericoma sp.        	      6      	    0.4
126892       	S. venustum         	      6      	    0.4
127113       	Atrichopogon sp.    	      6      	    0.4
54502        	Planariidae         	      6      	    0.4
114169       	H. corpulentus      	      6      	    0.4

sample #695

habitat typelocation no.sampler typesample area (m^2)
pool (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
125514       	Pericoma sp.        	    280      	   12.2
568572       	A. insignificans    	    260      	   11.4
127113       	Atrichopogon sp.    	    190      	    8.3
101214       	P. memorialis       	    180      	    7.9
117159       	Glossosoma sp.      	    150      	    6.6
64357        	Annelida            	    140      	    6.1
101368       	D. doddsi           	    130      	    5.7
101385       	D. spinifera        	    100      	    4.4
100817       	B. tricaudatus      	     90      	    3.9
P690         	R. Nevadensis grp.  	     80      	    3.5
103110       	Megarcys sp.        	     50      	    2.2
103273       	Sweltsa grp.        	     50      	    2.2
119660       	Antocha monticola   	     50      	    2.2
100589       	R. robusta          	     50      	    2.2
116025       	Ecclisomyia sp.     	     40      	    1.7
115935       	Apatania sp.        	     30      	    1.3
101343       	A. margarita        	     30      	    1.3
100557       	Cinygmula sp.       	     30      	    1.3
102596       	Z. columbiana       	     30      	    1.3
82754        	Acarina             	     30      	    1.3
70345        	Valvatidae          	     30      	    1.3
114180       	O. quadrimaculatus  	     30      	    1.3
54502        	Planariidae         	     30      	    1.3
101389       	D. coloradensis     	     20      	    0.9
116958       	Micrasema sp.       	     20      	    0.9
102615       	V. cataractae       	     20      	    0.9
100996       	Ameletus sp.        	     20      	    0.9
101399       	S. tibialis         	     20      	    0.9
101212       	P. heteronea        	     20      	    0.9
100635       	E. grandis          	     10      	    0.4
59490        	Nematoda            	     10      	    0.4
115981       	P. subborealis      	     10      	    0.4
130915       	Glutops sp.         	     10      	    0.4
127778       	Bezzia sp.          	     10      	    0.4
102752       	Utacapnia sp.       	     10      	    0.4
121027       	Dicranota sp.       	     10      	    0.4
120094       	Hexatoma sp.        	     10      	    0.4
136305       	Chelifera sp.       	     10      	    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.

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