Invasion
Invasion Description
1st record: Greenwich Dock, San Francisco/CA/San Francisco Bay (Arnold 1873, cited by Carlton 1979)
Geographic Extent
CA/Bodega Harbor (Menzies 1957, Carlton 1979); Hamlet, Marin County/CA/Tomales Bay (1948, USNM 91758, 91759 , Carlton 1979, US Museum of Natural History 2007); Greenwich Dock, San Francisco/CA/San Francisco Bay (Arnold 1873, cited by Carlton 1979) Pier 39, San Francisco/CA/San Francisco Bay (Cohen et al. 2005); San Francisco/CA/San Francisco Bay ((Menzies 1957; Wallour 1960; Cohen and Carlton 1995; ); CA/South San Francisco bay (Wallour 1960); Yerba Buena CA/San Francisco Bay (Wallour 1960); Monterey/CA/Monterey Bay (Wallour 1960; Carlton 1979); CA/Elkhorn Slough (MacGinitie 1935, cited by Carlton 1979; Wasson et al. 2001); CA/Morro Bay (1951, Menzies 1957; Carlton 1979);
Vectors
| Level | Vector |
|---|---|
| Probable | Hull Fouling |
Regional Impacts
| Economic Impact | Shipping/Boating | |
| Gribble damage to piers in San Francisco Bay was first reported in 1873, and was probably due to L. quadripunctata (Arnold 1873, cited by Carlton 1979). | ||