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Table 2. Percent frequency, abundance index (AI), cover, and standard errors of submersed and rooted floating-leaf vegetation in Pool 4, Upper Mississippi River System, 2001.
| Common name (Scientific name) |
Contiguous backwater,
upper n = 100 |
Contiguous backwater,
lower n = 176 |
Isolated backwater n = 50 |
|||
|
Freq
|
AI
|
Freq
|
Al
|
Freq
|
Al
|
|
| bladderwort, common (Utricularia macrorhiza) |
-
|
-
|
-
|
-
|
2.0.± 2.0
|
0.1.± 0.1
|
| buttercup, longbeak (Ranunculus longirostris) |
-
|
-
|
-
|
-
|
2.0.± 2.0
|
0.1± 0.1
|
| chara (Chara spp.) |
-
|
-
|
1.1 ± 0.8
|
0.1 ± 0.1
|
4.0 ± 2.8
|
0.3 ± 0.2
|
| coontail (Ceratophyllum demersum) |
3.0.± 1.7
|
0.2 ± 0.1
|
43.2. ± 3.7
|
6.3 ± 0.7
|
64.0 ± 6.9
|
12.7 ± 1.8
|
| pondweed, curly (Potamogeton crispus) |
-
|
-
|
11.4 ± 2.4
|
1.0 ± 0.2
|
6.0 ± 3.4
|
0.4 ± 0.2
|
| pondweed, flatstem (P. zosteriformis) |
-
|
-
|
6.8 ± 1.9
|
0.7 ± 0.2
|
8.0 ± 3.9
|
0.8 ± 0.4
|
| pondweed, horned (Zannichellia palustris) |
-
|
-
|
1.7 ± 1.0
|
0.2 ± 0.1
|
-
|
-
|
| pondweed, leafy/small (Potamogeton foliosus/pusillus) |
-
|
-
|
16.5 ± 2.8
|
1.9 ± 0.4
|
24.0 ± 6.1
|
3.1 ± 0.8
|
| pondweed, longleaf (P. nodosus) |
-
|
-
|
4.5 ± 1.6
|
0.6 ± 0.2
|
18.0 ± 5.5
|
1.8 ± 0.6
|
| pondweed, Richardson's (P. richardsonii) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, sago (P. pectinatus) |
11.0 ± 3.1
|
1.1 ± 0.3
|
15.3 ± 2.7
|
1.8 ± 0.4
|
52.0 ± 7.1
|
7.6 ± 1.1
|
| stargrass, water (Heteranthera dubia) |
-
|
-
|
37.5 ± 3.7
|
4.6 ± 0.5
|
10.0 ± 4.3
|
1.4 ± 0.6
|
| watermilfoil, Eurasian (Myriophyllum spicatum) |
-
|
-
|
23.9 ± 3.2
|
2.7 ± 0.4
|
2.0 ± 2.0
|
0.1 ± 0.1
|
| waternymph, nodding (Najas flexilis) |
-
|
-
|
9.1 ± 2.2
|
0.9 ± 0.2
|
-
|
-
|
| waterweed, Canadian (Elodea canadensis) |
-
|
-
|
27.3 ± 3.4
|
3.2 ± 0.4
|
28.0 ± 6.4
|
3.6 ± 0.9
|
| wildcelery (Vallisneria americana) |
-
|
-
|
30.1 ± 3.5
|
4.6 ± 0.6
|
4.0 ± 2.8
|
0.4 ± 0.3
|
| all submersed species |
14.0 ± 3.5
|
1.3 ± 0.4
|
71.0 ± 3.4
|
12.0 ± 0.7
|
76.0 ± 6.1
|
15.1 ± 1.7
|
|
Freq
|
Cover
|
Freq
|
Cover
|
Freq
|
Cover
|
|
| lotus, American (Nelumbo lutea) |
-
|
-
|
3.4 ± 1.4
|
0.8 ± 0.4
|
-
|
-
|
| waterlily, white (Nymphaea odorata) |
3.0 ± 1.7
|
0.3 ± 0.2
|
13.1 ± 2.5
|
2.6 ± 0.7
|
50.0 ± 7.1
|
5.0 ± 0.7
|
| all rooted floating-leaf species |
3.0 ± 1.7
|
0.3 ± 0.2
|
15.9 ± 2.8
|
3.3 ± 0.8
|
50.0 ± 7.1
|
5.0 ± 0.7
|
|
Common name
(Scientific name) |
Lake Pepin, upper
n = 75 |
Lake Pepin, lower
n = 75 |
Main channel border,
upper n = 30 |
|||
|
Freq
|
Al
|
Freq
|
Al
|
Freq
|
Al
|
|
| bladderwort, common (Utricularia macrorhiza) |
-
|
-
|
-
|
-
|
-
|
-
|
| buttercup, longbeak (Ranunculus longirostris) |
-
|
-
|
-
|
-
|
-
|
-
|
| chara (Chara spp.) |
-
|
-
|
-
|
-
|
-
|
-
|
| coontail (Ceratophyllum demersum) |
1.3 ± 1.3
|
0.1.± 0.1
|
-
|
-
|
3.3 ± 3.3
|
0.4 ± 0.4
|
| pondweed, curly (Potamogeton crispus) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, flatstem (P. zosteriformis) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, horned (Zannichellia palustris) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, leafy/small (Potamogeton foliosus/pusillus) |
-
|
-
|
2.7 ± 1.9
|
0.3 ± 0.3
|
-
|
-
|
| pondweed, longleaf (P. nodosus) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, Richardson's (P. richardsonii) |
-
|
-
|
1.3 ± 1.3
|
0.1.± 0.1
|
-
|
-
|
| pondweed, sago (P. pectinatus) |
2.7 ± 1.9
|
0.2 ± 0.2
|
10.7 ± 3.6
|
1.2 ± 0.4
|
-
|
-
|
| stargrass, water (Heteranthera dubia) |
1.3 ± 1.3
|
0.1.± 0.1
|
17.3 ± 4.4
|
2.3 ± 0.6
|
-
|
-
|
| watermilfoil, Eurasian (Myriophyllum spicatum) |
-
|
-
|
-
|
-
|
-
|
-
|
| waternymph, nodding (Najas flexilis) |
-
|
-
|
25.3 ± 5.1
|
4.0 ± 0.8
|
-
|
-
|
| waterweed, Canadian (Elodea canadensis) |
-
|
-
|
6.7 ± 2.9
|
0.7 ± 0.3
|
-
|
-
|
| wildcelery (Vallisneria americana) |
-
|
-
|
12.0 ± 3.8
|
1.3 ± 0.5
|
-
|
-
|
| all submersed species |
5.3 ± 2.6
|
0.4 ± 0.2
|
41.3 ± 5.7
|
5.9 ± 0.9
|
3.3 ± 3.3
|
0.4 ± 0.4
|
|
Freq
|
Cover
|
Freq
|
Cover
|
Freq
|
Cover
|
|
| lotus, American (Nelumbo lutea) |
-
|
-
|
-
|
-
|
-
|
-
|
| waterlily, white (Nymphaea odorata) |
-
|
-
|
-
|
-
|
-
|
-
|
| all rooted floating-leaf species |
-
|
-
|
-
|
-
|
-
|
-
|
|
Common name
(Scientific name) |
Main channel border,
lower n = 40 |
Secondary channel, upper
n = 40 |
Secondary channel, lower
n = 60 |
|||
|
Freq
|
AI
|
Freq
|
AI
|
Freq
|
AI
|
|
| bladderwort,
common (Utricularia macrorhiza) |
-
|
-
|
-
|
-
|
-
|
-
|
| buttercup, longbeak (Ranunculus longirostris) |
-
|
-
|
-
|
-
|
-
|
-
|
| chara (Chara spp.) |
-
|
-
|
-
|
-
|
-
|
-
|
| coontail (Ceratophyllum demersum) |
5.0 ± 3.5
|
0.5 ± 0.4
|
-
|
-
|
20.0 ± 5.2
|
1.8 ± 0.5
|
| pondweed, curly (Potamogeton crispus) |
7.5 ± 4.2
|
0.7 ± 0.4
|
-
|
-
|
11.7 ± 4.2
|
1.6 ± 0.6
|
| pondweed, flatstem (P. zosteriformis) |
-
|
-
|
-
|
-
|
3.3 ± 2.3
|
0.2 ± 0.2
|
| pondweed, horned (Zannichellia palustris) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, leafy/small (Potamogeton foliosus/pusillus) |
5.0 ± 3.5
|
0.7 ± 0.5
|
-
|
-
|
1.7 ± 1.7
|
0.1 ± 0.1
|
| pondweed, longleaf (P. nodosus) |
-
|
-
|
-
|
-
|
-
|
-
|
| pondweed, Richardson's (P. richardsonii) |
2.5 ± 2.5
|
0.3 ± 0.3
|
-
|
-
|
-
|
-
|
| pondweed, sago (P. pectinatus) |
10.0 ± 4.8
|
1.7 ± 1.0
|
-
|
-
|
11.7 ± 4.2
|
1.2 ± 0.5
|
| stargrass, water (Heteranthera dubia) |
17.5 ± 6.1
|
2.1 ± 0.8
|
-
|
-
|
26.7 ± 5.8
|
3.6 ± 0.9
|
| watermilfoil, Eurasian (Myriophyllum spicatum) |
-
|
-
|
-
|
-
|
5.0 ± 2.8
|
0.5 ± 0.3
|
| waternymph, nodding (Najas flexilis) |
-
|
-
|
-
|
-
|
1.7 ± 1.7
|
0.1 ± 0.1
|
| waterweed, Canadian (Elodea canadensis) |
15.0 ± 5.7
|
1.5 ± 0.6
|
-
|
-
|
16.7 ± 4.9
|
2.2 ± 0.7
|
| wildcelery (Vallisneria americana) |
20.0 ± 6.4
|
4.0 ± 1.4
|
-
|
-
|
25.0 ± 5.6
|
3.9 ± 0.9
|
| all submersed species |
22.5 ± 6.7
|
4.9 ± 1.5
|
-
|
-
|
31.7 ± 6.1
|
5.2 ± 1.1
|
|
Freq
|
Cover
|
Freq
|
Cover
|
Freq
|
Cover
|
|
| lotus, American (Nelumbo lutea) |
-
|
-
|
-
|
-
|
-
|
-
|
| waterlily, white (Nymphaea odorata) |
-
|
-
|
-
|
-
|
1.7 ± 1.7
|
0.2 ± 0.2
|
| all rooted floating-leaf species |
-
|
-
|
-
|
-
|
1.7 ± 1.7
|
0.2 ± 0.2
|
| Common
name (Scientific name) |
Pool 4, upper n = 245 |
Pool 4, lower n = 351 |
Pool 4 n = 646 |
|||
|
Freq
|
Al
|
Freq
|
Al
|
Freq
|
Al
|
|
| bladderwort, common (Utricularia macrorhiza) |
-
|
-
|
-
|
-
|
0.1 ± 0.1
|
<0.1± <0.1
|
| buttercup, longbeak (Ranunculus longirostris) |
-
|
-
|
-
|
-
|
0.1 ± 0.1
|
<0.1± <0.1
|
| chara (Chara spp.) |
-
|
-
|
0.7 ± 0.5
|
0.1 ± 0.1
|
0.6 ± 0.3
|
0.1 ± <0.1
|
| coontail (Ceratophyllum demersum) |
1.7 ± 0.9
|
0.1 ± 0.1
|
29.6 ± 2.4
|
4.1 ± 0.4
|
19.4 ± 1.4
|
2.8 ± 0.1
|
| pondweed, curly (Potamogeton crispus) |
-
|
-
|
9.1 ± 1.6
|
0.9 ± 0.2
|
5.1 ± 0.9
|
0.5 ± 0.1
|
| pondweed, flatstem (P. zosteriformis) |
-
|
-
|
4.6 ± 1.2
|
0.5 ± 0.1
|
2.8 ± 0.7
|
0.3 ± 0.1
|
| pondweed, horned (Zannichellia palustris) |
-
|
-
|
1.1 ± 0.6
|
0.1 ± 0.1
|
0.6 ± 0.3
|
0.1 ± <0.1
|
| pondweed, leafy/small (Potamogeton foliosus/pusillus) |
-
|
-
|
11.3 ± 1.8
|
1.3 ± 0.2
|
7.1 ± 1.0
|
0.9 ± 0.1
|
| pondweed, longleaf (P. nodosus) |
-
|
-
|
2.8 ± 1.0
|
0.4 ± 0.1
|
2.3 ± 0.6
|
0.3 ± 0.1
|
| pondweed, Richardson's (P. richardsonii) |
-
|
-
|
0.4 ± 0.3
|
<0.1 ± <0.1
|
0.2 ± 0.2
|
<0.1± <0.1
|
| pondweed, sago (P. pectinatus) |
4.5.± 1.4
|
0.4 ± 0.1
|
13.6 ± 1.9
|
1.6 ± 0.3
|
11.5 ± 1.2
|
1.4 ± 0.2
|
| stargrass, water (Heteranthera dubia) |
0.8 ± 0.8
|
0.1 ± 0.1
|
31.0 ± 2.5
|
3.9 ± 0.4
|
17.4 ± 1.4
|
2.2 ± 0.2
|
| watermilfoil, Eurasian (Myriophyllum spicatum) |
-
|
-
|
15.4 ± 2.0
|
1.8 ± 0.3
|
8.4 ± 1.2
|
1.0 ± 0.1
|
| waternymph, nodding (Najas flexilis) |
-
|
-
|
10.3 ± 1.6
|
1.2 ± 0.2
|
5.5 ± 0.9
|
0.7 ± 0.1
|
| waterweed, Canadian (Elodea canadensis) |
-
|
-
|
21.4 ± 2.3
|
2.5 ± 0.3
|
12.7 ± 1.3
|
1.5 ± 0.2
|
| wildcelery (Vallisneria americana) |
-
|
-
|
25.5 ± 2.4
|
3.9 ± 0.4
|
13.9 ± 1.3
|
2.1 ± 0.2
|
| all submersed species |
7.0 ± 1.8
|
0.6 ± 0.2
|
57.1 ± 2.5
|
9.6 ± 0.5
|
36.9 ± 1.6
|
6.0 ± 0.3
|
|
Freq
|
Cover
|
Freq
|
Cover
|
Freq
|
Cover
|
|
| lotus, American (Nelumbo lutea) |
-
|
-
|
2.1 ± 0.9
|
0.5 ± 0.3
|
1.1 ± 0.1
|
0.3 ± 0.1
|
| waterlily, white (Nymphaea odorata) |
0.8 ± 0.6
|
0.1 ± <0.1
|
8.3 ± 1.6
|
1.6 ± 0.4
|
7.0 ± 0.9
|
1.1 ± 0.2
|
| all rooted floating-leaf species |
0.8 ± 0.6
|
0.1 ± <0.1
|
10.1 ± 1.7
|
2.1 ± 0.5
|
7.9 ± 1.0
|
1.3 ± 0.3
|
U.S. Department of the Interior |
U.S. Geological Survey
URL: http://www.umesc.usgs.gov/reports_publications/ltrmp/veg/2001/tables/tables02pool04.html
Page Contact Information: Contacting the Upper Midwest Environmental Sciences Center
Page Last Modified:
October 2, 2007
