| Biology Department
Aquatic
Ecology home page
St.
Croix River Mussel Data
People in the lab
Research
publications/reports
Links
St. Croix River - mussels, map, pictures
Winged mapleleaf - Quadrula fragosa
Laboratory photos and directions to laboratory
Bivalve gill anatomy
Activities and fun stuff
Acknowledgments
Disclaimer
|
Mussels of the St. Croix River
Summary of Mussel Assemblages
based on Quantitative sampling 1991-2005
Distribution
of Mussels - % found at each site
Dominant species - shaded blue
2nd most abundant species - shaded green
| Species |
Riverside |
Seven Islands |
Wild River |
Interstate |
Franconia |
Osceola |
Bayport |
Lakeland |
Prescott |
| Actinonaias
ligamentina |
59 |
65.14 |
34.65 |
4.97 |
3.58 |
3.11 |
0.13 |
0.64 |
0.42 |
| Alasmidonta
marginata |
0.88 |
1.41 |
0.44 |
0.61 |
0.46 |
0.55 |
0 |
0.07 |
0.1 |
| Amblema
plicata |
1.47 |
0.35 |
0.5 |
1.07 |
2.19 |
3.11 |
65.48 |
41.84 |
29.3 |
| Cyclonaias
tuberculata |
1.77 |
2.11 |
3.34 |
1.79 |
0.92 |
0.18 |
0 |
0.14 |
0 |
| Ellipsaria
lineolata |
0 |
0 |
0 |
1.96 |
0.23 |
0 |
0 |
0.99 |
0.21 |
| Elliptio
dilatata |
21.83 |
13.03 |
26.59 |
2.57 |
4.85 |
1.28 |
3.03 |
9.12 |
6.47 |
| Epioblasma
triquetra |
0.59 |
0 |
0 |
2.55 |
4.16 |
1.46 |
0 |
0 |
0 |
| Fusconaia
ebena |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0.83 |
| Fusconaia
flava |
4.42 |
0.7 |
1.91 |
4.14 |
6.35 |
20.48 |
12.65 |
15.05 |
19.6 |
| Lampsilis
cardium |
1.18 |
5.99 |
1.69 |
0.78 |
2.54 |
0.55 |
0.13 |
0.78 |
3.02 |
| Lampsilis
higginsii |
0 |
0 |
0 |
0 |
0.58 |
0.18 |
0 |
1.13 |
1.25 |
| Lampsilis
siliquoidea |
1.47 |
0.7 |
3.87 |
0.15 |
1.5 |
0 |
0.66 |
0.35 |
1.36 |
| Lasmigona
complanata |
0 |
0 |
0.03 |
0.09 |
0.12 |
0.73 |
0 |
0.07 |
0.21 |
| Lasmigona
compressa |
0 |
0 |
0.03 |
0.02 |
0 |
0 |
0 |
0 |
0 |
| Lasmigona
costata |
0.59 |
2.46 |
2.59 |
0.26 |
0 |
0 |
0 |
0 |
0 |
| Leptodea
fragilis |
0.29 |
0.7 |
1.09 |
1.85 |
2.19 |
1.46 |
1.05 |
1.27 |
1.04 |
| Ligumia
recta |
2.65 |
3.52 |
1.41 |
0.26 |
0.23 |
0.18 |
0 |
0.14 |
0.52 |
| Megalonaias
nervosa |
0 |
0 |
0 |
0 |
0 |
0 |
0 |
0.14 |
0 |
| Obliquaria
reflexa |
0 |
0 |
0.22 |
1.83 |
0.69 |
1.65 |
7.25 |
11.94 |
17.94 |
| Obovaria
olivaria |
0.88 |
1.06 |
2.22 |
1.52 |
1.5 |
0.55 |
0 |
0 |
0.1 |
| Pleurobema
sintoxia |
0 |
0.7 |
1.62 |
3.22 |
3.7 |
2.01 |
0.92 |
3.18 |
9.59 |
| Potamilus
alatus |
0 |
0 |
1.31 |
0.78 |
1.04 |
2.38 |
1.05 |
0.99 |
0.42 |
| Potamilus
ohioensis |
0 |
0 |
0 |
0 |
0 |
0.18 |
0 |
0 |
0 |
| Pyganodon
grandis |
0 |
0.35 |
0.06 |
0.02 |
0.23 |
0 |
0.79 |
0.21 |
0.73 |
| Quadrula
fragosa |
0 |
0 |
0 |
0.11 |
0.12 |
0.18 |
0 |
0 |
0 |
| Quadrula
metanevra |
0 |
0 |
0 |
1.87 |
13.28 |
2.74 |
0 |
0.42 |
1.04 |
| Quadrula
pustulosa |
1.77 |
1.41 |
7.25 |
6.56 |
2.66 |
4.94 |
3.95 |
3.75 |
2.71 |
| Quadrula
quadrula |
0 |
0 |
0 |
0 |
0.12 |
0.18 |
0.13 |
0.78 |
0.1 |
| Strophitus
undulatus |
0 |
0.35 |
1.25 |
0.13 |
0.23 |
1.1 |
0.13 |
0.35 |
0.1 |
| Toxolasma
parvus |
0.59 |
0 |
0.06 |
0.15 |
0.12 |
0 |
0.4 |
0.14 |
1.46 |
| Tritogonia
verrucosa |
0 |
0 |
0 |
2.48 |
2.42 |
6.95 |
0 |
0.07 |
0 |
| Truncilla
donaciformis |
0.29 |
0 |
0 |
3.55 |
1.62 |
1.1 |
0.4 |
0 |
0 |
| Truncilla
truncata |
0 |
0 |
7.56 |
54.19 |
41.34 |
42.78 |
1.19 |
5.94 |
1.04 |
| UNKNOWN ADULT |
0.29 |
0 |
0.19 |
0.13 |
0.35 |
0 |
0.26 |
0.07 |
0 |
| UNKNOWN JUVENILE |
0 |
0 |
0.09 |
0.37 |
0.69 |
0 |
0.13 |
0.21 |
0.1 |
| Utterbackia
imbecillis |
0 |
0 |
0.03 |
0 |
0 |
0 |
0.26 |
0.21 |
0.31 |
| #
of 0.25 m2 quadrats |
400 |
100 |
500 |
700 |
500 |
400 |
400 |
400 |
500 |
| Total
Number of Species |
16 |
16 |
23 |
28 |
28 |
25 |
18 |
26 |
25 |
| Total
Number of Individuals |
339 |
284 |
3201 |
4591 |
866 |
547 |
759 |
1415 |
959 |
 
 
|
