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Ambient stream biological monitoring site

Seabeck Cr nr mouth

Photo of stream from sample site

Site details

project Ambient ecoregion Puget Lowland
latitude 47.62333 county Kitsap
latitude -122.838 land use reference site
elevation (ft) 30 reference site True
stream order 1 map link

Years when sampling has occurred:

13 12 11 10 09 08 07 06 05 04 03 02 01 00 99 98 97 96 95 94 93 92 91 90 89 88 87 86

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 have tea-colored water during the summer months and are fed by surrounding wetlands during the low flow months of the year. The stream settings include low elevation and high volumes of organic biomass in the channels. Historical and/or current degradation is likely, although this site may represent the best available conditions for the region.
For explanation on this site summary and any visit report below, see site summary and visit report keys.

Site visit reports:

Seabeck Cr nr mouth

Habitat measurements and taxa metrics - August 5, 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.

Visit comment

brown filamentous algae in first half of reach

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
 10.30.917.290

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)
DKICKriffle112.83.00  0.70.64 0.720.713.20.03
DKICKriffle24.34.00  1.90.06 0.741.912.50.06
DKICKriffle31.85.00  1.00.12 0.281.55.80.09
DKICKriffle41.93.00  1.30.09 0.471.310.50.20

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1    26%62%12%   
2    12%24%64%   
3    4%26%70%   
4    10%72%18%   

Habitat: pebble counts

loc
no
<2mm2-4mm4-6mm6-8mm8-11mm11-16mm16-22mm22-32mm32-45mm45-64mm64-90mm90-128mm128-180mm180-256mm256-512mm>=512mm
118%2%10%8%2%10%10%14%10%8%6%2%    
212%  6% 12%4%8%8%20%14%16%    
34%2% 2%2%4%4%8%16%16%14%10%    
412%  4% 2%4%22%14%32%8%2%    

Taxa: RIVPACS score

RIVPACS not available.

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited58%48%27%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited4
(3)
34
(3)
8
(5)
186
(3)

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 composited1611.61522%
(5)
69%
(1)
42%

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 composited5
(3)
124%7%
(1)
11%17%
(1)

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

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

sample #1837

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.76
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
100817       	B. tricaudatus      	    325      	   42.2
129657       	Polypedilum         	     92      	   11.9
126774       	Simulium sp.        	     84      	   10.9
103273       	Sweltsa grp.        	     33      	    4.3
129197       	Tvetenia            	     29      	    3.8
100557       	Cinygmula sp.       	     28      	    3.6
129890       	Micropsectra        	     24      	    3.1
102594       	Z. cinctipes        	     16      	    2.1
102591       	Zapada sp.          	     14      	    1.8
Y820         	Eukiefferiella Pseud	     14      	    1.8
68510        	Enchytraeidae       	     12      	    1.6
568515       	Cricotopus Isocladiu	     11      	    1.4
129969       	Stempellinella      	     11      	    1.4
568598       	D. hageni           	      8      	    1.0
128978       	Parametriocnemus    	      7      	    0.9
128477       	Brillia             	      7      	    0.9
136305       	Chelifera sp.       	      7      	    0.9
82754        	Acarina             	      5      	    0.6
Y800         	Eukiefferiella Devon	      4      	    0.5
128401       	Pagastia            	      3      	    0.4
117159       	Glossosoma sp.      	      3      	    0.4
100823       	B. bicaudatus       	      3      	    0.4
101389       	D. coloradensis     	      3      	    0.4
115121       	R. Sibirica grp. - v	      3      	    0.4
114167       	Heterlimnius sp.    	      3      	    0.4
102567       	Malenka sp.         	      3      	    0.4
J977         	Z. Oregonensis grp. 	      3      	    0.4
128563       	Corynoneura         	      3      	    0.4
102914       	Perlidae            	      1      	    0.1
101365       	Drunella sp.        	      1      	    0.1
102994       	Perlodidae          	      1      	    0.1
103233       	Paraperla sp.       	      1      	    0.1
112314       	Oreodytes sp.       	      1      	    0.1
114093       	Elmidae             	      1      	    0.1
114142       	Narpus sp.          	      1      	    0.1
115165       	R. arnaudi          	      1      	    0.1
125810       	Dixa sp.            	      1      	    0.1
129086       	Rheocricotopus      	      1      	    0.1
P622         	R. Betteni grp.     	      1      	    0.1
121027       	Dicranota sp.       	      1      	    0.1

Seabeck Cr nr mouth

Habitat measurements and taxa metrics - September 10, 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.

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
10.210.21.238.91

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)
DKICKriffle12.01.001.00 1.60.07 1.001.516.8 
DKICKriffle23.81.001.00 0.30.05 1.000.525.6 
DKICKriffle32.81.501.00 0.70.04 0.650.620.4 
DKICKriffle43.21.001.00 0.50.04 0.340.621.1 

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1    14%50%36%   
2      100%   
3    30%12%58%   
4    22%16%62%   

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: 0.70

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited16%13%68%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited2
(1)
18
(1)
4
(3)
104
(3)

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

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 8
(3)
6
(1)
0%0%93%6%
(5)

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 composited0%
(1)
6
(3)
1%2%14%16%
(1)

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

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

sample #686

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
127917       	Chironomidae        	   2028      	   67.7
126774       	Simulium sp.        	    432      	   14.4
100817       	B. tricaudatus      	    330      	   11.0
102594       	Z. cinctipes        	     54      	    1.8
568598       	D. hageni           	     30      	    1.0
121027       	Dicranota sp.       	     18      	    0.6
125810       	Dixa sp.            	     18      	    0.6
100557       	Cinygmula sp.       	     12      	    0.4
115097       	Rhyacophila sp.     	     12      	    0.4
82754        	Acarina             	     12      	    0.4
P622         	R. Betteni grp.     	      6      	    0.2
127338       	Ceratopogoninae sp. 	      6      	    0.2
103273       	Sweltsa grp.        	      6      	    0.2
103102       	Skwala sp.          	      6      	    0.2
102597       	Z. Oregonensis grp. 	      6      	    0.2
68422        	Oligochaeta         	      6      	    0.2
100572       	Rhithrogena sp.     	      6      	    0.2
119660       	Antocha monticola   	      6      	    0.2

Seabeck Cr nr mouth

Habitat measurements and taxa metrics - August 19, 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.

Visit comment

new house construction above reach

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
12.511.31.158.102

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)
DKICKriffle17.92.001.00 1.10.05 1.001.115.7 
DKICKriffle23.05.001.00 2.00.06 0.912.012.7 
DKICKriffle33.72.001.00 2.70.05 0.752.711.6 
DKICKriffle44.31.501.00 1.30.10 0.621.111.7 

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1    20%40%40%   
2    4%28%68%   
3    4%30%66%   
4    10%26%64%   

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: 1.05

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited37%22%48%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited3
(3)
26
(3)
5
(3)
135
(3)

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

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 9
(3)
5
(5)
0%1%61%0%
(5)

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 composited2
(1)
7
(3)
5%5%11%16%
(1)

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

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

sample #685

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.    	   3567      	   24.8
128457       	Orthocladiinae sp.  	   2705      	   18.8
100800       	Baetis sp.          	   2535      	   17.6
102591       	Zapada sp.          	   1590      	   11.1
126774       	Simulium sp.        	   1463      	   10.2
127917       	Chironomidae        	    644      	    4.5
100504       	Heptageniidae       	    301      	    2.1
100557       	Cinygmula sp.       	    301      	    2.1
103273       	Sweltsa grp.        	    219      	    1.5
121027       	Dicranota sp.       	    134      	    0.9
68422        	Oligochaeta         	     90      	    0.6
117159       	Glossosoma sp.      	     86      	    0.6
127994       	Tanypodinae         	     86      	    0.6
82754        	Acarina             	     86      	    0.6
136327       	Hemerodromia        	     86      	    0.6
126640       	Simuliidae          	     86      	    0.6
103102       	Skwala sp.          	     47      	    0.3
115095       	Trichoptera         	     46      	    0.3
120094       	Hexatoma sp.        	     44      	    0.3
115097       	Rhyacophila sp.     	     44      	    0.3
111963       	Dytiscidae          	     43      	    0.3
102567       	Malenka sp.         	     43      	    0.3
100801       	Acentrella sp.      	     43      	    0.3
100572       	Rhithrogena sp.     	     43      	    0.3
125514       	Pericoma sp.        	     43      	    0.3
102985       	Calineuria sp.      	      1      	    0.0

Seabeck Cr nr mouth

Habitat measurements and taxa metrics - September 15, 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.

Habitat: stream chemistry, temperature, and flow

temperature
(deg C)
dis o winkler
(mg/L)
stream flow
(CFS)
pH
(pH)
conductivity
(umhos/cm)
12.10.10.537.883

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)
DKICKriffle15.21.500.75 0.30.10 0.87 8.6 

Habitat: substrate

loc
no
otherwoodsilt
clay
sandfine
gravel
coarse
gravel
cobbleboulderbedrock
rough
bedrock
smooth
1    46%28%26%   

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: 0.78

Taxa: composition

samp
type
loc
type
loc
no
commentEPT
(%)
ephem
(%)
chiron
(%)
DKICKriffle0field composited39%22%45%

Taxa: richness

samp
type
loc
type
loc
no
commentTrichop
richness
(count)
total
richness
(count)
Plecop
richness
(count)
EPT
richness
(count)
Ephem
richness
(count)
DKICKriffle0field composited8
(5)
38
(5)
6
(5)
228
(5)

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

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 18
(5)
4
(5)
43%60%7%
(5)

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)
13
(5)
7%8%7%11%
(1)

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

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

2 samples: #684 (riffle composite), #683 (pool composite)

sample #684

habitat typelocation no.sampler typesample area (m^2)
riffle (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
128457       	Orthocladiinae sp.  	   7065      	   45.3
102594       	Z. cinctipes        	   1140      	    7.3
100817       	B. tricaudatus      	   1065      	    6.8
126640       	Simuliidae          	   1035      	    6.6
568572       	A. insignificans    	    735      	    4.7
103273       	Sweltsa grp.        	    585      	    3.8
100557       	Cinygmula sp.       	    540      	    3.5
68422        	Oligochaeta         	    480      	    3.1
100589       	R. robusta          	    390      	    2.5
101214       	P. memorialis       	    285      	    1.8
114169       	H. corpulentus      	    255      	    1.6
102597       	Z. Oregonensis grp. 	    255      	    1.6
101343       	A. margarita        	    255      	    1.6
54502        	Planariidae         	    225      	    1.4
P690         	R. Nevadensis grp.  	    225      	    1.4
125514       	Pericoma sp.        	    120      	    0.8
101212       	P. heteronea        	    105      	    0.7
P772         	R. Vofixa grp.      	     90      	    0.6
103102       	Skwala sp.          	     75      	    0.5
127778       	Bezzia sp.          	     75      	    0.5
121027       	Dicranota sp.       	     45      	    0.3
82754        	Acarina             	     45      	    0.3
135849       	Clinocera sp.       	     45      	    0.3
115641       	Hydroptila sp.      	     45      	    0.3
116958       	Micrasema sp.       	     45      	    0.3
102986       	C. californica      	     45      	    0.3
117159       	Glossosoma sp.      	     45      	    0.3
103234       	P. frontalis        	     30      	    0.2
114144       	N. concolor         	     30      	    0.2
117120       	Glossosomatidae     	     30      	    0.2
120094       	Hexatoma sp.        	     30      	    0.2
136305       	Chelifera sp.       	     30      	    0.2
64183        	Nematomorpha        	     30      	    0.2
116794       	Lepidostoma sp.     	     15      	    0.1
101389       	D. coloradensis     	     15      	    0.1
101318       	Timpanoga hecuba    	     15      	    0.1
121227       	Blephariceridae     	     15      	    0.1
130915       	Glutops sp.         	     15      	    0.1
116906       	Brachycentrus sp.   	     15      	    0.1

sample #683

habitat typelocation no.sampler typesample area (m^2)
pool (composite sample) DKICK 0.75
taxon id     	taxon name          	density (m^2)	% of total
------------------------------------------------------------------
127113       	Atrichopogon sp.    	   3735      	   77.8
100817       	B. tricaudatus      	    240      	    5.0
101206       	P. bicornuta        	    150      	    3.1
82754        	Acarina             	    135      	    2.8
135849       	Clinocera sp.       	     90      	    1.9
115002       	Sialis sp.          	     60      	    1.3
125514       	Pericoma sp.        	     45      	    0.9
116794       	Lepidostoma sp.     	     45      	    0.9
101343       	A. margarita        	     30      	    0.6
112812       	Berosus sp.         	     30      	    0.6
114180       	O. quadrimaculatus  	     30      	    0.6
116268       	D. gilvipes         	     30      	    0.6
119037       	Tipula sp.          	     30      	    0.6
125810       	Dixa sp.            	     30      	    0.6
P690         	R. Nevadensis grp.  	     15      	    0.3
114169       	H. corpulentus      	     15      	    0.3
121027       	Dicranota sp.       	     15      	    0.3
103273       	Sweltsa grp.        	     15      	    0.3
103102       	Skwala sp.          	     15      	    0.3
102752       	Utacapnia sp.       	     15      	    0.3
81400        	Pisidium sp.        	     15      	    0.3
115981       	P. subborealis      	     15      	    0.3

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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