Iowa DNR
BioNet
River & Stream Biological Monitoring
Fish and Benthic Macroinvertebrate Surveys
Physical Habitat Assessments

Unnamed Tributary to Unnamed Tributary to Upper Iowa River SW of New Albin

FishNet Coldwater Habitat Survey - Session #35

Sampling Date
8/16/2023
Created
1/24/2024 3:54:00 PM
Last Updated
1/29/2024 2:56:17 PM
Water Temp
55 oF
Discharge
0.49 cfs
Conductivity
600 µS/cm
Run Length
81 m
Transect Spacing
10.0 m

Comments

No comments recorded.

Run Summary Stats

Stream Channel
Stream Width - Average
1.59 m
Stream Width - Standard Deviation
0.62
Transect Depth - Average
0.18 m
Transect Depth - Standard Deviation
0.13
Thalweg Depth - Average
0.22 m
Thalweg Depth - Standard Deviation
0.12
Stream Width : Thalweg Depth Ratio
7.26
Maximum Station Depth
0.50 m
Coarse Rock Embededness - Average Rating
3.00
Streambank - Average Percent Bare - Total
17.50 %
Instream Cover
Filamentous Algae - Average Percent
0.00%
Macrophytes - Average Percent
3.75%
Woody Debris - Average Percent
0.00%
Small Brush - Average Percent
4.38%
Overhanging Vegetation - Average Percent
28.12%
Undercut Banks - Average Percent
3.75%
Boulders - Average Percent
2.50%
Artificial Structure - Average Percent
1.25%
Depth/Pool - Average Percent
16.88%
Watercress - Average Percent
20.00%
Macrohabitat
Riffle
25.00%
Run
50.00%
Pool
25.00%
Substrates
Silt
31.20%
Sand
37.50%
Gravel
6.20%
Cobble
18.80%
Boulder
6.20%
Canopy
Average Percent of Channel Shaded
6.76 %
Standard Deviation - Percent of Channel Shaded
8.11
Bank Angles
% Horizontal (0-15 degrees)
12.50 %
% Moderate (20-50 degrees)
37.50 %
% Vertical (55-110 degrees)
50.00 %
% Undercut (115-180 degrees)
0.00 %

Run Data

Groundwater Influence: None
Watercress Presence: Multiple
Start of Run: 43.43185, -91.32846
End of Run: 43.43207, -91.32876
Run Comments:
Transect #1
Stream Width
1.50 m
Embededness
3
Bank Angles (L/R)
70o / 10o
Bank % Bare (L/R)
10% / 20%
Densiometer (L/C/R)
- / 33 / -
Station Depths
  • 0.20 m
  • 0.20 m
  • 0.10 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Overhanging Vegetation: 2
  • Undercut Banks: 1
  • Boulders: 1
  • Depth: 1
Midway Transect (Transect #1.5)
Thalweg Depth
0.15 m
Stream Width
0.90 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0
Transect #2
Stream Width
1.30 m
Embededness
0
Bank Angles (L/R)
65o / 20o
Bank % Bare (L/R)
40% / 20%
Densiometer (L/C/R)
- / 37 / -
Station Depths
  • 0.15 m
  • 0.10 m
  • 0.10 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Overhanging Vegetation: 3
  • Undercut Banks: 1
  • Artificial Structure: 1
Midway Transect (Transect #2.5)
Thalweg Depth
0.20 m
Stream Width
0.90 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0
Transect #3
Stream Width
2.20 m
Embededness
0
Bank Angles (L/R)
20o / 50o
Bank % Bare (L/R)
10% / 10%
Densiometer (L/C/R)
- / 31 / -
Station Depths
  • 0.30 m
  • 0.50 m
  • 0.30 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Small Brush (<0.3m): 2
  • Overhanging Vegetation: 1
  • Boulders: 1
  • Depth: 3
Midway Transect (Transect #3.5)
Thalweg Depth
0.25 m
Stream Width
1.30 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0
Transect #4
Stream Width
2.60 m
Embededness
0
Bank Angles (L/R)
65o / 55o
Bank % Bare (L/R)
20% / 10%
Densiometer (L/C/R)
- / 37 / -
Station Depths
  • 0.05 m
  • 0.15 m
  • 0.05 m
Instream Cover
  • Watercress: 1
  • Small Brush (<0.3m): 1
  • Overhanging Vegetation: 2
  • Undercut Banks: 1
  • Depth: 1
Midway Transect (Transect #4.5)
Thalweg Depth
0.15 m
Stream Width
2.00 m
Watercress Present
True
Fine Woody Debris
1
Large Woody Debris
0

Run Summary Stats

Stream Channel
Stream Width - Average
0.94 m
Stream Width - Standard Deviation
0.32
Transect Depth - Average
0.15 m
Transect Depth - Standard Deviation
0.05
Thalweg Depth - Average
0.20 m
Thalweg Depth - Standard Deviation
0.06
Stream Width : Thalweg Depth Ratio
4.69
Maximum Station Depth
0.30 m
Coarse Rock Embededness - Average Rating
2.00
Streambank - Average Percent Bare - Total
11.25 %
Instream Cover
Filamentous Algae - Average Percent
0.00%
Macrophytes - Average Percent
10.00%
Woody Debris - Average Percent
3.75%
Small Brush - Average Percent
3.75%
Overhanging Vegetation - Average Percent
41.25%
Undercut Banks - Average Percent
8.75%
Boulders - Average Percent
5.00%
Artificial Structure - Average Percent
0.00%
Depth/Pool - Average Percent
2.50%
Watercress - Average Percent
20.00%
Macrohabitat
Riffle
12.50%
Run
50.00%
Pool
37.50%
Substrates
Clay
6.20%
Silt
6.20%
Sand
31.20%
Gravel
18.80%
Cobble
37.50%
Canopy
Average Percent of Channel Shaded
31.76 %
Standard Deviation - Percent of Channel Shaded
8.07
Bank Angles
% Horizontal (0-15 degrees)
25.00 %
% Moderate (20-50 degrees)
75.00 %
% Vertical (55-110 degrees)
0.00 %
% Undercut (115-180 degrees)
0.00 %

Run Data

Groundwater Influence: None
Watercress Presence: Multiple
Start of Run: 43.43054, -91.32898
End of Run: 43.43001, -91.32903
Run Comments:
Transect #1
Stream Width
0.60 m
Embededness
0
Bank Angles (L/R)
50o / 10o
Bank % Bare (L/R)
30% / 0%
Densiometer (L/C/R)
- / 24 / -
Station Depths
  • 0.20 m
  • 0.15 m
  • 0.10 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Woody Debris (>0.3m): 1
  • Overhanging Vegetation: 2
  • Boulders: 1
Midway Transect (Transect #1.5)
Thalweg Depth
0.10 m
Stream Width
1.00 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0
Transect #2
Stream Width
0.60 m
Embededness
2
Bank Angles (L/R)
30o / 45o
Bank % Bare (L/R)
0% / 10%
Densiometer (L/C/R)
- / 26 / -
Station Depths
  • 0.10 m
  • 0.20 m
  • 0.10 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 1
  • Small Brush (<0.3m): 1
  • Overhanging Vegetation: 3
  • Undercut Banks: 1
  • Boulders: 1
Midway Transect (Transect #2.5)
Thalweg Depth
0.15 m
Stream Width
0.70 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0
Transect #3
Stream Width
0.90 m
Embededness
2
Bank Angles (L/R)
35o / 20o
Bank % Bare (L/R)
0% / 20%
Densiometer (L/C/R)
- / 22 / -
Station Depths
  • 0.20 m
  • 0.15 m
  • 0.15 m
Instream Cover
  • Macrophytes: 2
  • Watercress: 2
  • Woody Debris (>0.3m): 2
  • Overhanging Vegetation: 2
  • Undercut Banks: 2
  • Boulders: 1
  • Depth: 1
Midway Transect (Transect #3.5)
Thalweg Depth
0.25 m
Stream Width
1.50 m
Watercress Present
True
Fine Woody Debris
2
Large Woody Debris
0
Transect #4
Stream Width
1.30 m
Embededness
0
Bank Angles (L/R)
15o / 35o
Bank % Bare (L/R)
20% / 10%
Densiometer (L/C/R)
- / 29 / -
Station Depths
  • 0.10 m
  • 0.20 m
  • 0.20 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Overhanging Vegetation: 3
  • Undercut Banks: 1
  • Boulders: 1
  • Depth: 1
Midway Transect (Transect #4.5)
Thalweg Depth
0.30 m
Stream Width
0.90 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0

Run Summary Stats

Stream Channel
Stream Width - Average
1.57 m
Stream Width - Standard Deviation
0.73
Transect Depth - Average
0.14 m
Transect Depth - Standard Deviation
0.05
Thalweg Depth - Average
0.24 m
Thalweg Depth - Standard Deviation
0.20
Stream Width : Thalweg Depth Ratio
6.46
Maximum Station Depth
0.70 m
Coarse Rock Embededness - Average Rating
2.00
Streambank - Average Percent Bare - Total
5.00 %
Instream Cover
Filamentous Algae - Average Percent
0.00%
Macrophytes - Average Percent
10.00%
Woody Debris - Average Percent
0.00%
Small Brush - Average Percent
8.12%
Overhanging Vegetation - Average Percent
48.75%
Undercut Banks - Average Percent
2.50%
Boulders - Average Percent
15.00%
Artificial Structure - Average Percent
0.00%
Depth/Pool - Average Percent
10.00%
Watercress - Average Percent
33.12%
Macrohabitat
Riffle
37.50%
Run
25.00%
Pool
37.50%
Substrates
Silt
25.00%
Cobble
50.00%
Boulder
25.00%
Canopy
Average Percent of Channel Shaded
41.89 %
Standard Deviation - Percent of Channel Shaded
31.25
Bank Angles
% Horizontal (0-15 degrees)
25.00 %
% Moderate (20-50 degrees)
37.50 %
% Vertical (55-110 degrees)
37.50 %
% Undercut (115-180 degrees)
0.00 %

Run Data

Groundwater Influence: None
Watercress Presence: Multiple
Start of Run: 43.42895, -91.32913
End of Run: 43.42868, -91.32933
Run Comments: Max Depth 0.8m
Transect #1
Stream Width
1.70 m
Embededness
0
Bank Angles (L/R)
55o / 45o
Bank % Bare (L/R)
0% / 0%
Densiometer (L/C/R)
- / 12 / -
Station Depths
  • 0.20 m
  • 0.25 m
  • 0.15 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Small Brush (<0.3m): 2
  • Overhanging Vegetation: 2
  • Undercut Banks: 1
  • Boulders: 1
  • Depth: 2
Midway Transect (Transect #1.5)
Thalweg Depth
0.10 m
Stream Width
0.70 m
Watercress Present
True
Fine Woody Debris
1
Large Woody Debris
0
Transect #2
Stream Width
1.50 m
Embededness
3
Bank Angles (L/R)
35o / 15o
Bank % Bare (L/R)
20% / 10%
Densiometer (L/C/R)
- / 11 / -
Station Depths
  • 0.05 m
  • 0.10 m
  • 0.10 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Overhanging Vegetation: 2
  • Undercut Banks: 1
  • Boulders: 1
  • Depth: 1
Midway Transect (Transect #2.5)
Thalweg Depth
0.30 m
Stream Width
2.00 m
Watercress Present
True
Fine Woody Debris
1
Large Woody Debris
0
Transect #3
Stream Width
1.40 m
Embededness
2
Bank Angles (L/R)
15o / 25o
Bank % Bare (L/R)
0% / 10%
Densiometer (L/C/R)
- / 32 / -
Station Depths
  • 0.15 m
  • 0.15 m
  • 0.15 m
Instream Cover
  • Macrophytes: 2
  • Watercress: 3
  • Overhanging Vegetation: 3
  • Boulders: 2
  • Depth: 1
Midway Transect (Transect #3.5)
Thalweg Depth
0.70 m
Stream Width
3.10 m
Watercress Present
True
Fine Woody Debris
2
Large Woody Debris
0
Transect #4
Stream Width
1.10 m
Embededness
1
Bank Angles (L/R)
70o / 55o
Bank % Bare (L/R)
0% / 0%
Densiometer (L/C/R)
- / 31 / -
Station Depths
  • 0.15 m
  • 0.15 m
  • 0.10 m
Instream Cover
  • Macrophytes: 1
  • Watercress: 2
  • Small Brush (<0.3m): 1
  • Overhanging Vegetation: 4
  • Boulders: 2
  • Depth: 1
Midway Transect (Transect #4.5)
Thalweg Depth
0.20 m
Stream Width
1.10 m
Watercress Present
True
Fine Woody Debris
0
Large Woody Debris
0