| Specimen ID | 270090 |
| Group | Crustaceans-Cladocerans |
| Genus | Bythotrephes |
| Species | longimanus |
| Common Name | spiny waterflea |
| State | WI |
| County | Dane |
| Locality | Lake Kegonsa |
| Mapping Accuracy | Accurate |
| HUC8 Name | Middle Rock |
| HUC8 Number | 07090002 |
| HUC10 Name | Lake Kegonsa-Yahara River |
| HUC10 Number | 0709000209 |
| HUC12 Name | Lake Kegonsa-Yahara River |
| HUC12 Number | 070900020902 |
| Map | |
| Collection Day | 1 |
| Collection Month | 10 |
| Collection Year | 2009 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker on small watercraft | shipping ballast water |
| Status | established |
| Reference 1 |
| Ref. Number: | 19334 |
| Author: | Wisconsin Dept. of Natural Resources. |
| Date: | 2010 |
| Title: | Aquatic Invasives Data and Maps. |
| Publisher: | Wisconsin Dept of Natural Resources, Madison, Wisconsin. |
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| Record Type | Literature |
| Earliest Record | locale |
| Freshwater/Marine | Freshwater |
