Invasion
Invasion Description
1st Record: Eld Inlet beach WA/southern Puget Sound (1995, Chapman et al. 2012, 47°05'14" 122°58'29")
Geographic Extent
Refuge Cove State Recreation Site/Ketchikan/AK (2017, John Chapman and iNaturalist, iNaturalist (2024), 55.413324, -131.765532), Settler's Cove/Ketchikan/AK (2018, Chapman et al. 2021, 55.5122°N, 131.7256°W), Sitka/AK (2021, Karen Johnson and iNaturalist, iNaturalist (2024), 57.131966, -135.374611); Calvert Island, British Columbia/Pruth Bay (2017, Whalen et al. 2020, 51.6544°N; 128.1309°W); Vancouver Island/British Columbia/Baynes Sound ((49.5278°N; 124.8498°W), Whalwn et al. 2020); Stanley Park, Vancouver/British Columbia/Vancouver Harbour (2005, as Ione sp., Lamb and Hanby 2005, cited by Williams and An 2009); Ross Islet, Vancouver Island//British Columbia/Barkley Sound (7/26/2006, Williams and An 2009); Bamfield Inlet (2008, Chapman et al. 2012. 48o 48' 47.94" N, 125o 09' 25.93" W, infesting ~90& of Upogebia pugettensis); Vancouver Ferry terminal/r/British Columbia/Vancouver Harbour (9/7/2009, Chapman et al. 2012, one pair of parasites on U. pugettensis); Eld Inlet beach WA/southern Puget Sound (1995, Chapman et al. 2012, 47°05'14" 122°58'29"); Freeland Town Beach and Crescent Harbor, Whidbey Island and Camano Island (2003, Chapman et al. 2012, 48o 13’ 24.57” N; 122o 43’ 04.62” W); WA/southern Puget Sound near the mouth of the Nisqually River (2006, Chapman et al. 2012, 47o 06’ 13.33” N; 122o 43’ 57.83” W, U. pugettensis highly infested)
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Discarded Bait |
| Alternate | Natural Dispersal |
Regional Impacts
| Ecological Impact | Parasitism | |
| Dramatic reductions in populations of Upogebia pugettensis, associated with high prevalence of Orthione griffenis were seen in Barkley and Grappler Sounds, Vancouver Island, in Vancouver Harbor, and in several locations in Puget Sound (Chapman et al. 2012). | ||