ODFW AQUATIC INVENTORY PROJECT STREAM REPORT STREAM: North Roy Creek LLID: 1239723447946 BASIN: Siletz River HUC NUMBER: 17100204 DATES: August 11- 17, 2011 SURVEY CREW: Kip Woods / Mark Stone REPORT PREPARED BY: Staci Stein STREAM ORDER: 2 BASIN AREA: 3.4 km 2 FIRST ORDER TRIBUTARIES: 1 USGS MAPS: Mowery Landing ECOREGION: Coast Range Sitka Spruce REACH DESCRIPTION: (T09S-R11W-S13NE) Length 2078 meters. The North Roy Creek survey began at the confluence with Roy Creek and continued upstream to a major unnamed tributary junction that contributed 50% of the flow. The channel was constrained by terraces in a broad valley floor. There was 105 meters of secondary channel habitat. The average valley width index was 8.0 (range: 4.0-10.0). Land uses were second growth timber and mature trees. The average unit gradient was 0.6 percent. The stream habitat was primarily scour pool (46%) and beaver dammed pools (37%). The stream substrate was silt and organic fines (46%), sand (38%), and gravel (16%). Nineteen percent of the stream banks had undercut. Large wood debris volume was 48.3m 3 /100m of stream length. The trees found most frequently in the riparian zone were hardwoods 30-90cm dbh (based on six riparian transects). Doug fir, elderberry, hawthorn, and cascara were noted in the riparian zone. COMMENTS: This is a very low gradient stream with many beaver ponds. Coho and trout were observed and spawning gravel was noted; however, most of the substrate was mud and silt. Additional wildlife observed included rough skinned newt, crawdad, red-legged frog, and both abandoned and active beaver activity. The riparian was healthy with large, older trees. The crew commented on the large available area of rearing habitat and the little amount of spawning habitat. There were many wood debris jams noted throughout the survey. Roy Creek and South Roy Creek were surveyed 2011 summer as well.
21
Embed
ODFW AQUATIC INVENTORY PROJECT STREAM REPORT … · Additional wildlife observed included rough skinned newt, crawdad, red-legged frog, and both abandoned and active beaver activity.
This document is posted to help you gain knowledge. Please leave a comment to let me know what you think about it! Share it to your friends and learn new things together.
Transcript
ODFW AQUATIC INVENTORY PROJECT STREAM REPORT
STREAM: North Roy Creek LLID: 1239723447946 BASIN: Siletz River HUC NUMBER: 17100204 DATES: August 11- 17, 2011 SURVEY CREW: Kip Woods / Mark Stone REPORT PREPARED BY: Staci Stein STREAM ORDER: 2 BASIN AREA: 3.4 km2 FIRST ORDER TRIBUTARIES: 1 USGS MAPS: Mowery Landing ECOREGION: Coast Range Sitka Spruce REACH DESCRIPTION: (T09S-R11W-S13NE) Length 2078 meters. The North Roy Creek survey began at the
confluence with Roy Creek and continued upstream to a major unnamed tributary junction that contributed 50% of the flow. The channel was constrained by terraces in a broad valley floor. There was 105 meters of secondary channel habitat. The average valley width index was 8.0 (range: 4.0-10.0). Land uses were second growth timber and mature trees. The average unit gradient was 0.6 percent. The stream habitat was primarily scour pool (46%) and beaver dammed pools (37%). The stream substrate was silt and organic fines (46%), sand (38%), and gravel (16%). Nineteen percent of the stream banks had undercut. Large wood debris volume was 48.3m3/100m of stream length. The trees found most frequently in the riparian zone were hardwoods 30-90cm dbh (based on six riparian transects). Doug fir, elderberry, hawthorn, and cascara were noted in the riparian zone.
COMMENTS: This is a very low gradient stream with many beaver ponds. Coho and trout were observed and spawning gravel was noted; however, most of the substrate was mud and silt. Additional wildlife observed included rough skinned newt, crawdad, red-legged frog, and both abandoned and active beaver activity. The riparian was healthy with large, older trees. The crew commented on the large available area of rearing habitat and the little amount of spawning habitat. There were many wood debris jams noted throughout the survey. Roy Creek and South Roy Creek were surveyed 2011 summer as well.
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
BRIDGE CROSSING
TRIBUTARY
DEBRIS JAM
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
BEAVER ACTIVITY
BILL'S BLVD
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
PERCENT SHADE
1
0
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
PERCENT SILT AND ORGANICS
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
PERCENT SILT, ORGANICS, AND SAND
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
PERCENT GRAVEL
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
PERCENT BEDROCK
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
NUMBER OF BOULDERS (running average per 100 m.)
1
-25
0
25
50
75
100
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
1
0POOLS > OR = TO 1 METERS DEEP
DEPTH (meters)
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
PIECES OF LARGE WOOD
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
100
VOLUME OF LARGE WOOD (cubic meters)
1
-10
15
40
65
90
115
0 250 500 750 1000 1250 1500 1750 2000 2250 2500
DISTANCE (meters)
ELEV
ATI
ON
(met
ers)
NORTH ROY CREEK (SILETZ RIVER BASIN) SUMMER 2011
0
1
KEYPIECES OF LARGE WOOD
1
OREGON DEPARTMENT OF FISH AND WILDLIFEHABITAT INVENTORY Survey Date: 8/11/2011Report Date: 3/13/2012
NORTH ROY CREEK
REACH 1 REACH 1T09S-R11W-S13NEValley and Channel Summary