| Specimen ID | 1655078 |
| Group | Coelenterates-Hydrozoans |
| Genus | Craspedacusta |
| Species | sowerbii |
| Common Name | freshwater jellyfish |
| State | WI |
| County | Vilas |
| Locality | Hunter Lake in water of approximately 22 foot depth near center of main lake |
| Mapping Accuracy | Accurate |
| HUC8 Name | Upper Wisconsin |
| HUC8 Number | 07070001 |
| HUC10 Name | Pioneer Creek-Wisconsin River |
| HUC10 Number | 0707000103 |
| HUC12 Name | Rice Creek |
| HUC12 Number | 070700010307 |
| Map | |
| Collection Day | 25 |
| Collection Month | 8 |
| Collection Year | 2020 |
| Year Accuracy | Actual |
| Potential Pathway | hitch hiker with stocked fish | hitch hiker on aquatic plants |
| Status | established |
| Comments | Sighting occurred by my husband and myself, mid-morning, full sunlight, approx. 80 degrees F air temp, very calm waters, as we directed our pontoon boat to the center of the lake. A pair of loons were feeding in this area; doubtful that they were feeding on the jellies. Diameter of all specimens observed was approx. 2-2.5 cm. Color was white. The hydromedusas that were visible to us ranged from 4' beneath the surface to nearly at the surface, and they seemed to be concentrated in one area. It was hard to judge their numbers, as water clarity affected our ability to see if they dove deeper, although the water was actually extremely clear for this 134 acre seepage lake. Also, the water was filled with microscopic and small algae and probably invertebrates on which the jelly fish may have been feeding. We did not observe definitive feeding. Their movement through the water was mainly horizontal, although some moved toward the water's surface. The jellyfish seldom remained at the sunny, warm surface of the water for long; it was difficult to photograph them with our cameras. Although not upload-able, we also have a video. |
| Record Type | NAS sighting report |
| Freshwater/Marine | Freshwater |
| Number Collected | 60 |
| Photo | |
