| Specimen ID | 1657532 |
| Group | Coelenterates-Hydrozoans |
| Genus | Craspedacusta |
| Species | sowerbii |
| Common Name | freshwater jellyfish |
| State | MA |
| County | Middlesex |
| Locality | Walden Pond |
| Mapping Accuracy | Accurate |
| HUC8 Name | Concord River |
| HUC8 Number | 01070005 |
| HUC10 Name | Sudbury River |
| HUC10 Number | 0107000501 |
| HUC12 Name | Hop Brook-Sudbury River |
| HUC12 Number | 010700050104 |
| Map | |
| Collection Year | 2010 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker |
| Status | established |
| Reference 1 |
| Ref. Number: | 35771 |
| Author: | Ball, P. |
| Date: | 2010 |
| Title: | Swimmer finds jeyfish in Walden Pond in Concord |
| Publisher: | Wicked Local |
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| Reference 2 |
| Ref. Number: | 35772 |
| Author: | Leigh Hester, J. |
| Date: | 2021 |
| Title: | Walden Pond is now teeming with jellyfish— but dont panic |
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| Record Type | Literature |
| Freshwater/Marine | Freshwater |
