Invasion
Invasion Description
1st Record: OR/Coos Bay (1948, cultured from 1948 to the present, Carlton 1979, Oregon Department of Fish and Wildlife 2011 http://www.dfw.state.or.us/mrp/shellfish/bayclams/about_oysters.asp)
Geographic Extent
OR/Coos Bay (1948, cultured from 1948 to the present, Carlton 1979, Oregon Department of Fish and Wildlife 2011 http://www.dfw.state.or.us/mrp/shellfish/bayclams/about_oysters.asp)
Vectors
Level | Vector |
---|---|
Probable | Oyster Intentional |
Regional Impacts
Economic Impact | Fisheries | |
Culture of M. gigas continues in Coos Bay to the present (Oregon Department of Fish and Wildlife http://www.dfw.state.or.us/mrp/shellfish/bayclams/about_oysters.asp) | ||
Ecological Impact | Parasite/Predator Vector | |
Parasite-Predator vector- The introduction of M. gigas has been a possible/probable vector for a number of oyster foulers or predators in Coos Bay including the bryozoan Schizoporella japonica, and the tunicates Botrylloides violaceus, Didemnum vexillum and Styela clava (Carlton 1979; Cohen and Carlton 1995; USGS Nonindigenous Aquatic Species Program 2010). | ||