Invasion
Invasion Description
1st Established record? Boston/MA/Boston Harbor (1893, Manley 1893. Two wooden scows sank in the harbor, and were found to have been bored by T. navalis) 1st record?: Essex County/MA/Massachusetts Bay 'Found in the sheathing of vessels from foreign seas' (Russell 1839); 'from ship timbers' (Boston, MA Gould 1870). Teredo navalis was absent in wood of a 5,000 yr-old fish weir in Boston, though Bankia gouldi was found (Johnson et al. 1942).
Geographic Extent
Machiasport/ME/Gulf of Maine (Wallour 1960); Southwest Harbor/ME/Somes Sound (Wallour 1960); Bucksport/ME/Penobscot River estuary (Wallour 1960); Belfast/ME/Belfast Harbor (Darling Marine Center 2001); Searsport/ME/Penobscot Bay (Wallour 1960); Stonington/ME/Atlantic Ocean (Darling Marine Center 2001); Rockland/ME/Penobscot Bay (Wallour 1960); Thomaston/ME/Oyster River (Wallour 1960); Boothbay Harbor/ME/Boothbay Harbor (undated, MCZ Malacology 123500, Museum of Comparative Zoology 2013); Wiscasset/ME/Sheepscott River (Wallour 1960); Portland/ME/Casco Bay (1937, Brown 1953, Wallour 1960); Scarboro/ME/Gulf of Maine (Wallour 1960); Portsmouth/NH/Great Bay-Gulf of Maine (1924, MCZ 12007, Museum of Comparative Zoology 2009; Wallour 1960); York/ME/Gulf of Maine (Wallour 1960); Essex County/MA/Massachusetts Bay (Russell 1839); Gloucester/MA/Massachusetts Bay (Wallour 1960); Beverly/MA/Massachusetts Bay (Wallour 1960); Salem/MA/Massachusetts Bay (Wallour 1960); Lynn/MA/Massachusetts Bay (Wallour 1960); East Boston/MA/Massachusetts Bay (1951, Brown 1953, Wallour 1960); Hull/MA/Massachusetts Bay (Wallour 1960); Quincy/MA/Massachusetts Bay (Wallour 1960); Hingham/MA//Massachusetts Bay (Wallour 1960); Weymouth/MA//Massachusetts Bay (Wallour 1960); Provincetown/MA/Cape Cod Bay (1924, MCZ 121494, Museum of Comparative Zoology 2009); Brant Rock/MA/Green Harbor River (1935, MCZ 122055, Museum of Comparative Zoology 2009); Duxbury/MA/Cape Cod Bay (Wallour 1960); Provincetown/MA/Cape Cod Bay (1924, MCZ 121494, Museum of Comparative Zoology 2009)
Vectors
Level | Vector |
---|---|
Alternate | Hull Fouling |
Alternate | Ballast Water |
Alternate | Natural Dispersal |
Regional Impacts
Economic Impact | Shipping/Boating | |
Damage to boats and pilings in Boston Harbor was first reported in 1893 (Manley 1893). Routine shipworm surveys, sponsored by the Navy from the 1930s to 1959 show great year-to year variation in shipworm settlement and abundance in Gulf of Maine harbors (Brown 1953; Wallour 1960). | ||
Economic Impact | Fisheries | |
Teredo navalis was reported to destroy oyster trays in the Damariscotta River (Darling Marine Center 2001). | ||