Invasion
Invasion Description
1st Record: LA/Terrebonne Bay, Lake Pelto (1993, Graham et al. 2003, USGS Nonindigenous Aquatic Species Program 2007, single specimen)
Geographic Extent
Cape Canaveral/FL/Banana River (2001, USGS Nonindigenous Aquatic Species Program 2007); AL/Mobile Bay entrance (2000, Graham et al. 2003); Cat, Ship, Horn, and Petit Bois Islands/MS/Gulf of Mexico (2000, Graham et al. 2003; USGS Nonindigenous Aquatic Species Program 2006, 2007); Chandeleur Islands/LA/Gulf of Mexico (USGS Nonindigenous Aquatic Species Program 2006); MS-LA/Mississippi Sound (late June-early July 2000, Graham et al. 2003); New Orleans area/LA/Mississippi River - Gulf Outlet Canal, Lake Borgne, Bayou La Loutre (June-September 2000, USGS Nonindigenous Aquatic Species Program 2006); LA/Lake Borgne (2002-2003, Graham et al. 2003, 1 sighting); Chandeleur Islands/LA/Gulf of Mexico (USGS Nonindigenous Aquatic Species Program 2006); Port Fourchon/LA/Gulf of Mexico (2000, Graham et al. 2003); LA/Terrebonne Bay, Lake Pelto (1993, USGS Nonindigenous Aquatic Species Program 2007); 'west of the Mississippi River'/LA/Gulf of Mexico (2002-2003, Graham et al. 2003); TX/Eckerts Bayou, Galveston Bay (5/30/2006, Center for Aquatic Resource Studies 2006; Barord et al. 2007, 1 specimen); Veracruz state/Mexico/Laguna de Mandinga, Gulf of Mexico (2006, Ocaña-Luna et al. 2010, 19º00' -19º06'N and 96º02'-96º06'W)
Vectors
| Level | Vector |
|---|---|
| Alternate | Hull Fouling |
| Alternate | Ballast Water |
Regional Impacts
| Ecological Impact | Predation | |
| Gut contents of 15 medusae consisted of bivalve larvae (35%), adult copepods (23%), loricate tintinnids (23%), and fish eggs (15%). In the highest concentrations seen in Lake Borgne, Louisiana, the medusa population had an estimated filtering rate of 6-72% of the water column per day (Graham et al. 2003). | ||
| Economic Impact | Fisheries | |
| During the jellyfish bloom in the Gulf of Mexico during 2000, the shrimp fishery (primarily for the White Shrimp, Penaeus setiferus) was reduced and halted during the months of July and August, due to clogging of nets. Economic losses may have been as high as $10 million (Graham et al. 2003). | ||