| Specimen ID | 1406841 |
| Group | Mollusks-Bivalves |
| Genus | Dreissena |
| Species | polymorpha |
| Common Name | zebra mussel |
| State | TX |
| County | Comal |
| Locality | Guadalupe River at Canyon Lake (marina) |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Guadalupe |
| HUC8 Number | 12100201 |
| HUC10 Name | Guadalupe River-Canyon Lake |
| HUC10 Number | 1210020104 |
| HUC12 Name | Jentsch Creek-Canyon Lake |
| HUC12 Number | 121002010406 |
| Map | |
| Collection Day | 8 |
| Collection Month | 6 |
| Collection Year | 2017 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | dispersed |
| Status | established |
| Reference 1 |
| Ref. Number: | 30030 |
| Author: | Texas Parks and Wildlife Department. |
| Date: | 2017 |
| Title: | Zebra mussels discovered in Canyon Lake. |
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| Reference 2 |
| Ref. Number: | 32223 |
| Author: | Western Regional Panel Members |
| Date: | 2018 |
| Title: | Member Update Reports for the Western Regional Panel Meeting |
| Publisher: | Aquatic Nuisance Species Task Force Western Regional Panel |
| Pages: | 52 |
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| Comments | Found on a boat that been stored in a marina. As of October 2018, this reservoir was designated as established by officials. |
| Record Type | Literature |
| Earliest Record | drainage |
| Verifier | Texas Parks and Wildlife Department |
| Freshwater/Marine | Freshwater |
