Invasion
Invasion Description
1st Records: Harkers Island/NC/Beaufort Sound (2022, Blakeslee et al. 2024); Back Sounf/NC/Beaufort Sound (2021, Blakeslee et al. 2024); Beaufort/SC/Port Royal Sound (Station Creek) (1991, USGS Nonindigenous Aquatic Species Program 2009); Georgetown/SC/Winyah Bay (Waccamaw River) (1991, USGS Nonindgenous Aquatic Species Program 2009); between Dewees Island and Isle of Palms/SC/Dewees Inlet (1991, USGS Nonindigenous Aquatic Species Program 2009); Charleston/SC/Conch Creek (USNM 275928, US National Museum of Natural History 2009)
Geographic Extent
Wilmington/NC/Cape Fear Sound (Rodriguez et al. 2005); on Waccamaw Neck near Clambank/SC/Crab Haul Creek (1991, USGS Nonindigenous Aquatic Species Program 2009); Georgetown/SC/Winyah Bay (Waccamaw River) (1991, USGS Nonindigenous Aquatic Species Program 2009); between Dewees Island and Isle of Palms/SC/Dewees Inlet (1991, USGS Nonindigenous Aquatic Species Program 2009); Charleston/SC/Conch Creek (USNM 275928, US National Museum of Natural History 2009); Charleston/SC/Charleston Harbor (2003, Power et al. 2006); near Folly Beach/SC/Folly River at confluence with the Stono River (1997, USGS Nonindigenous Aquatic Species Program 2009); Edisto Island/SC/Big Bay Creek (1997, USGS Nonindigenous Aquatic Species Program 2009); Beaufort/SC/Port Royal Sound (Station Creek) (1991, USGS Nonindigenous Aquatic Species Program 2009); Hilton Head Island/SC/Broad River (1997, USGS Nonindigenous Aquatic Species Program 2009); Savannah/GA/Savannah Habor (2003, Power et al. 2006); ~2 mi NE of Parkersburg/GA/Skidaway River (1997, USGS Nonindigenous Aquatic Species Program 2009); Priest Landing/GA/Wilmington River estuary (2010, Byers et al. 2014, (31 57 45.340 N, 81 09 48.080 W); St. Catherines Island/GA/Atlantic Ocean (1994, Knott et al. 1999); Sapelo Island near Marsh Landing/GA/Duplin River at mouth (1997, USGS Nonindigenous Aquatic Species Program 2009); Sea Island/GA/St. Simons Sound (Rodriguez et al. 2005); Jacksonville/FL/St. Johns River estuary (2003, Power et al. 2006); Guana-Tomalato Matanzas National Estuarine Research Reserve/FL/Matanzas River Estuary (2004-2012, Eash-Loucks et al. 2014)
Vectors
| Level | Vector |
|---|---|
| Alternate | Ballast Water |
| Alternate | Oyster Accidental |
| Alternate | Natural Dispersal |
Regional Impacts
| Ecological Impact | Competition | |
| In mesocosm experiments conducted in Georgia, high abundances of Petrolisthes armatus suppressed recruitment of oysters and mud crabs (Panopeus herbstii) (Hollebone and Hay 2008). | ||
| Ecological Impact | Food/Prey | |
| In Georgia estuaries, where Petrolisthes armatus is very abundant, P. armatus was readily consumed by native fishes and the native crabs Callinectes sapidus and Panopeus herbstii in tethering experiments (Hollebone and Hay 2008). | ||
| Ecological Impact | Habitat Change | |
| In mesocosm experiments conducted in Georgia, high abundances of Petrolisthes armatus promoted macroalgal growth (Ulva spp.) (Hollebone and Hay 2008). | ||
| Ecological Impact | Herbivory | |
| In mesocosm experiments conducted in Georgia, high abundances of Petrolisthes armatus suppressed a phytoplankton bloom, through filter-feeding (Hollebone and Hay 2008). | ||
| Ecological Impact | Trophic Cascade | |
| In oyster reefs in Georgia, high abundances of Petrolisthes armatus increased recruitment of Oyster Drills (Urosalpinx cinerea), due to switching of predation by mud crabs Panopeus herbstii to P. armatus, decreasing predation on the oyster drills (Hollebone and Hay 2008). | ||