St. Croix Quantitative Data
Summary Data from Quantitative sampling - mussel density, mussel richness and sediment size. Click on the image for a larger size.
 Mussel Density |
 Mussel Richness |
 Sediment Size
|
An overview of the methods used to collect these data can be found here.
Distribution of Mussels - % found at each site
Dominant
species - shaded blue
2nd most abundant species - shaded green
| Species | Bayport | Franconia | Interstate | Lakeland | Osceola | Prescott | Riverside | Seven |
Wild |
|
Actinonaias
ligamentina |
0.33 |
5.58 |
5.84 |
0.64 |
4.19 |
0.42 |
58.16 |
65.99 |
35.74 |
|
Alasmidonta
marginata |
0.00 |
0.35 |
0.59 |
0.07 |
0.47 |
0.10 |
0.77 |
1.51 |
0.38 |
|
Amblema
plicata |
63.83 |
2.01 |
1.02 |
41.84 |
2.64 |
29.30 |
1.53 |
0.50 |
0.52 |
|
Cyclonaias
tuberculata |
0.00 |
1.05 |
2.10 |
0.14 |
0.47 |
0.00 |
2.04 |
1.51 |
3.79 |
|
Ellipsaria
lineolata |
0.00 |
0.35 |
2.23 |
0.99 |
0.16 |
0.21 |
0.00 |
0.00 |
0.00 |
|
Elliptio
dilatata |
3.06 |
4.36 |
2.65 |
9.12 |
1.24 |
6.47 |
22.70 |
12.59 |
24.35 |
|
Epioblasma
triquetra |
0.00 |
3.84 |
2.78 |
0.00 |
1.40 |
0.00 |
0.51 |
0.00 |
0.00 |
|
Fusconaia
ebena |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
0.83 |
0.00 |
0.00 |
0.00 |
|
Fusconaia
flava |
13.33 |
6.11 |
4.27 |
15.05 |
18.76 |
19.60 |
3.83 |
0.50 |
1.81 |
|
Lampsilis
cardium |
0.11 |
3.05 |
0.89 |
0.78 |
1.09 |
3.02 |
1.79 |
6.05 |
2.45 |
|
Lampsilis
higginsii |
0.00 |
0.52 |
0.02 |
1.13 |
0.16 |
1.25 |
0.00 |
0.00 |
0.00 |
|
Lampsilis
siliquoidea |
0.55 |
1.13 |
0.17 |
0.35 |
0.00 |
1.36 |
1.28 |
0.50 |
3.29 |
|
Lasmigona
complanata |
0.00 |
0.09 |
0.09 |
0.07 |
0.62 |
0.21 |
0.00 |
0.00 |
0.05 |
|
Lasmigona
compressa |
0.00 |
0.00 |
0.04 |
0.00 |
0.00 |
0.00 |
0.26 |
0.00 |
0.02 |
|
Lasmigona
costata |
0.00 |
0.00 |
0.23 |
0.00 |
0.00 |
0.00 |
0.51 |
3.53 |
2.45 |
|
Leptodea
fragilis |
0.87 |
2.18 |
1.80 |
1.27 |
1.40 |
1.04 |
0.26 |
0.76 |
1.22 |
|
Ligumia
recta |
0.00 |
0.52 |
0.25 |
0.14 |
0.31 |
0.52 |
2.81 |
2.52 |
1.19 |
|
Megalonaias
nervosa |
0.00 |
0.00 |
0.00 |
0.14 |
0.00 |
0.00 |
0.00 |
0.00 |
0.00 |
|
Obliquaria
reflexa |
7.65 |
0.61 |
1.91 |
11.94 |
1.71 |
17.94 |
0.00 |
0.00 |
0.17 |
|
Obovaria
olivaria |
0.00 |
1.31 |
1.55 |
0.00 |
0.62 |
0.10 |
1.02 |
0.76 |
2.81 |
|
Pleurobema
sintoxia |
1.20 |
4.71 |
3.21 |
3.18 |
3.26 |
9.59 |
0.00 |
0.76 |
1.88 |
|
Potamilus
alatus |
0.98 |
1.22 |
0.87 |
0.99 |
2.17 |
0.42 |
0.00 |
0.00 |
1.12 |
|
Potamilus
ohiensis |
0.00 |
0.00 |
0.00 |
0.00 |
0.31 |
0.00 |
0.00 |
0.00 |
0.00 |
|
Pyganodon
grandis |
0.77 |
0.17 |
0.02 |
0.21 |
0.16 |
0.73 |
0.00 |
0.25 |
0.05 |
|
Quadrula
fragosa |
0.00 |
0.09 |
0.13 |
0.00 |
0.31 |
0.00 |
0.00 |
0.00 |
0.00 |
|
Quadrula
metanevra |
0.00 |
14.22 |
2.02 |
0.42 |
3.72 |
1.04 |
0.00 |
0.00 |
0.00 |
|
Quadrula
pustulosa |
4.37 |
2.97 |
6.73 |
3.75 |
5.12 |
2.71 |
1.53 |
1.51 |
8.15 |
|
Quadrula
quadrula |
0.33 |
0.09 |
0.02 |
0.78 |
0.16 |
0.10 |
0.00 |
0.00 |
0.00 |
|
Strophitus
undulatus |
0.22 |
0.35 |
0.13 |
0.35 |
0.93 |
0.10 |
0.00 |
0.50 |
1.12 |
|
Toxolasma
parvus |
0.33 |
0.09 |
0.19 |
0.14 |
0.00 |
1.46 |
0.51 |
0.00 |
0.05 |
|
Tritogonia
verrucosa |
0.00 |
2.36 |
2.65 |
0.07 |
6.98 |
0.00 |
0.00 |
0.00 |
0.00 |
|
Truncilla
donaciformis |
0.33 |
1.22 |
3.59 |
0.00 |
0.93 |
0.00 |
0.26 |
0.00 |
0.00 |
|
Truncilla
truncata |
1.09 |
37.43 |
51.50 |
5.94 |
40.78 |
1.04 |
0.00 |
0.25 |
6.89 |
|
UNKNOWN ADULT |
0.22 |
0.26 |
0.11 |
0.07 |
0.00 |
0.00 |
0.26 |
0.00 |
0.14 |
|
UNKNOWN JUVENILE |
0.11 |
1.75 |
0.40 |
0.21 |
0.00 |
0.10 |
0.00 |
0.00 |
0.31 |
|
Utterbackia
imbecillis |
0.33 |
0.00 |
0.00 |
0.21 |
0.00 |
0.31 |
0.00 |
0.00 |
0.05 |
|
Total number of
mussels collected |
915 |
1146 |
5289 |
1415 |
645 |
959 |
392 |
397 |
4197 |
|
Number of 0.25 m2
quadrats |
500 |
700 |
820 |
400 |
500 |
500 |
500 |
200 |
700 |