Sampled in 1992, 2001, 2003, 2005, 2009
![](http://danhornbach.org/wp-content/uploads/2022/11/stcroix-riverside1.jpg)
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Community Composition – Percent composition each year
Species | 1992 | 2001 | 2003 | 2005 | 2009 |
Actinonaias ligamentina | 74.36 | 51.28 | 40.63 | 43.90 | 52.83 |
Alasmidonta marginata | 0.00 | 1.28 | 1.56 | 2.44 | 0.00 |
Amblema plicata | 0.00 | 0.00 | 3.13 | 7.32 | 1.89 |
Cyclonaias tuberculata | 1.28 | 2.56 | 1.56 | 2.44 | 3.77 |
Elliptio dilatata | 9.62 | 29.49 | 35.94 | 31.71 | 28.30 |
Epioblasma triquetra | 1.28 | 0.00 | 0.00 | 0.00 | 0.00 |
Fusconaia flava | 2.56 | 5.13 | 9.38 | 2.44 | 0.00 |
Lampsilis cardium | 0.64 | 2.56 | 1.56 | 0.00 | 5.66 |
Lampsilis siliquoidea | 0.00 | 5.13 | 1.56 | 0.00 | 0.00 |
Lasmigona compressa | 0.00 | 0.00 | 0.00 | 0.00 | 1.89 |
Lasmigona costata | 0.00 | 0.00 | 3.13 | 0.00 | 0.00 |
Leptodea fragilis | 0.64 | 0.00 | 0.00 | 0.00 | 0.00 |
Ligumia recta | 3.21 | 1.28 | 1.56 | 4.88 | 3.77 |
Obovaria olivaria | 1.28 | 0.00 | 0.00 | 2.44 | 1.89 |
Quadrula pustulosa | 2.56 | 1.28 | 0.00 | 2.44 | 0.00 |
Toxolasma parvus | 1.28 | 0.00 | 0.00 | 0.00 | 0.00 |
Truncilla donaciformis | 0.64 | 0.00 | 0.00 | 0.00 | 0.00 |
UNKNOWN ADULT | 0.64 | 0.00 | 0.00 | 0.00 | 0.00 |